Answer:
14 quarters and 28 nickels
Step-by-step explanation:
System of Equations where x = number of quarters and y = number of nickels
(1) equation with value of each coin
0.25(x)+0.05(y) = 4.90
(2) total number of coins
x + y = 42
Solve system of equations using either substitution or elimination
(elimination multiplying equation 2 by -0.5)
.25(x) + 0.05(y) = 4.90
-0.05(x) - 0.05(y) = 42 * (-0.05)
(3) Resulting equation
.20(x) = 2.8
x = 14
plug x into equation 2
14 + y = 42
y = 28
There are 14 quarters and 28 nickels in Mary's collection.
What are three rational numbers between 2 and -2
Answer: -1, 0, and 1
Step-by-step explanation: -1 is an integer and all integers are rational numbers so -1 is rational.
0 is also an integer and all integers are rational numbers. Therefore, 0 is considered a rational number.
1 is a natural number and all natural numbers are rational numbers. Therefore, 1 would be a rational number.
Solve for the unknown by using the additive inverse. Type the FULL answer in the box, without using any spaces (ex., X=5).
2Y – 3 = Y – 4
Answer:
What is the quotient of 120 and 0.03
(equation and answer)
Is 1600 a perfect square?
Yes or no
Show work to explain why
Please and thank you
Answer:
the quotient is 4000 and the square is a perfect square
Step-by-step explanation:
120/0.03=4000
40 time 40 is 1600 so its perfectly square.
hope this helps
When the y-intercepts of a line is 0, the relationship is....
Answer:
I am going to assume you mean the relationship between x and y.
If the y-intercept is 0, that means the point is on the origin.
So x and y are equal to each other. they are both zero
What is y=-7x+9 in standard form
Answer:
7 x + y = 9
Step-by-step explanation:
if h=-16t ²+160t represents the height of a rocket in T seconds after it was fired when will the rocket hit the ground?
Answer:
The time after which the rocket hit the ground is 5 seconds
Step-by-step explanation:
Given as :
The distance of the cover by rocket at the height h = - 16 t² + 160 t
Let the time after which rocket hit the ground = T seconds
Now, When the rocket hits the ground, then at that time, the velocity of the rocket becomes zero.
I.e velocity = [tex]\frac{\partial h}{\partial t}[/tex] = 0
Or, v = [tex]\frac{\partial h}{\partial t}[/tex] = 0
Now, v = [tex]\frac{\partial h}{\partial t}[/tex]
Or, v = [tex]\frac{\partial (-16t^{2}+160t)}{\partial t}[/tex]
or, v = - 32 t + 160
Now, ∵ velocity of rocket after reaching the ground becomes zero
So, v = - 32 t + 160 = 0
Or, 32 t = 160
Or, t = [tex]\frac{160}{32}[/tex]
∴ t = 5 sec
So, The time after which the rocket hit the ground = 5 sec
Hence The time after which the rocket hit the ground is 5 seconds answer
To find when the rocket will hit the ground using the quadratic equation h = -16t² + 160t, solve for t when h=0; the rocket will hit the ground after 10 seconds.
Explanation:To determine when the rocket will hit the ground given the equation h = -16t² + 160t, we need to find the value of t at which the height h is zero. The equation represents a quadratic equation, where t is the time in seconds after the rocket was fired, and h is the height of the rocket at any time t.
To solve for the time when the rocket hits the ground, we set h to zero and solve for t:
0 = -16t² + 160t0 = t(160 - 16t)Therefore, t = 0 or t = 10 secondsWe discard the t = 0 since it represents the initial time at launch. Thus, the rocket will hit the ground after 10 seconds.
During this entire period, while the rocket is ascending and descending, it is important to consider the horizontal motion if analyzing its trajectory in more detail, but for this problem, we are only concerned with the vertical motion.
|x|, if x=10; .3; 0; −2.7; −9
Answer:
if x = 10, then
x
=
;
if x = .3, then
x
=
;
if x = 0, then
x
=
;
if x = −2.7, then
x
=
;
if x = −9, then
x
=
Answer:
For [tex]\left | x \right |[/tex] we will have positive values only.
[tex]\left | -2.7 |\right =2.7[/tex]
[tex]\left | -9 |\right =9[/tex]
Rest are positive so will give positive values out of the modulus function.
Step-by-step explanation:
The absolute value of any number is its positive value only.
As for example [tex](-2.7)[/tex] and [tex](2.7)[/tex] both are having equal distance from [tex]0[/tex] in a number line, one on the left other on the right side of the number line but are equidistant from [tex]0[/tex].
So absolute value of a number is its distance on number line from reference point [tex]0[/tex].
One by one we will work with all of our question.
[tex]\left | 10 |\right =10[/tex]
[tex]\left | 0.3 |\right =0.3[/tex]
[tex]\left | 0 |\right =0[/tex]
[tex]\left | -2.7 |\right =2.7[/tex]
[tex]\left | -9 |\right =9[/tex]
So we have to take the positive number out of the modulus function that is also called absolute value.
HELLLLLP WILL GIVE BRAINLIEST FIRST ANSWER
6(3x+2x)+(39-y)x2= what
Answer:− 1 x (small)2 y + 39 x(small) 2 + 30 x
Step-by-step explanation:
my new car radio was $179.95 plus 20 percent for installation. what did I end up paying?
Answer:
$215.94
Step-by-step explanation:
You do 20% × $179.95 to get $35.99
Since the 20% is being added to your bill, you add it to your base price
$179.95 + $35.99 = $215.94
Lynn,Jude,and Anne were given the function f(x)=2x+32, and they were asked to find f(3).Lynn’s answer was 14,judes answer was 4, and Anne’s answer +4. Who is correct?
Answer:
Option 1. Lynn, only
Step-by-step explanation:
The correct question is
Listen Lynn, Jude, and Anne were given the function f(x)=-2x^2+32, and they were asked to find f(3). Lynn's answer was 14, Jude's answer was 4, and Anne's answer was (+/-)4. Who is correct?
1. Lynn, only
2. Jude, only
3. Anne, only
4. Both Lynn and Jude
we have
[tex]f(x)=-2x^{2} +32[/tex]
This is a vertical parabola open downward (leading coefficient is negative)
The vertex is a maximum
we know that
f(3) means, the value of f(x) when the value of x is equal to 3
so
For x=3
substitute in the quadratic equation and solve for f(x)
[tex]f(3)=-2(3^{2}) +32[/tex]
[tex]f(3)=-18 +32[/tex]
[tex]f(3)=14[/tex]
therefore
Lynn's answer is correct
To determine the value of the function f(x) = 2x + 32 at x=3, we substitute x with 3, and solve to obtain f(3) = 38. Therefore, all students' answers were incorrect.
Explanation:In the function f(x) = 2x + 32, to find the value of f(3), you first need to substitute 'x' with 3. The equation it becomes f(3) = 2 * 3 + 32
By solving the equation, you obtain is f(3) = 6 + 32 which equals to f(3) = 38.
Thus, all the students, Lynn, Jude, and Anne, unfortunately provided incorrect answers.
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It takes 2 5/6 spoons of chocolate syrup to make 4/6 of chocolate milk.how many spoons of syrup would it take to make 1 gallon of chocolate milk?
Answer:
17/4
Step-by-step explanation:
2 5/6=17/6
4/6=2/3
------------------
(17/6)/(2/3)=(17/6)(3/2)=51/12=17/4
is y=-x-10 linear or nonlinear
Answer:
Linear
Step-by-step explanation:
Because it has no exponents
If it has no exponents than its always linear
Answer:
Linear
Step-by-step explanation:
It is in Slope-Intercept Form [y = mx + b], and this formula is ALWAYS a linear function [NO EXPONENTS].
I am joyous to assist you anytime.
given A=LW solve for W
Answer:
[tex]\large\boxed{W=\dfrac{A}{L}}[/tex]
Step-by-step explanation:
[tex]A=LW\qquad\text{divide both sides by}\ L\neq0\\\\\dfrac{A}{L}=\dfrac{LW}{L}\\\\\dfrac{A}{L}=W[/tex]
A 15- ounce box contains 0.425 kg of cereal. how many grams of cereal are in the box
425 g for the 15 ounce box of cereal?
Lynn is having a party. Pizzas cost $8.00 each. How many pizzas can she buy with $60.00
Answer: 7 pizzas
Step-by-step explanation:
Answer:
60/8 = 7.5 = 7 pizzas (round down to the nearest integer)
Step-by-step explanation:
You can only buy a whole pizza, not slices of it.
if AB=16 then AD is?
Answer:
8
Step-by-step explanation:
AD is half of AB
1/2 * 16 = 8
Answer:
8
Step-by-step explanation:
CD is an altitude. It is perpendicular to AB, and it splits AB in half. If AB=16, and CD splits AB in half, to find AD you would do this:
1/2AB
1/2·16=8
8 is your answer.
Yu can also see that AD and DB are congruent, so their values must be the same.
~Stay golden~:)
solve
4(t+1/4) = 3 plz
Answer:
t = 1/2
Step-by-step explanation:
4(t+1/4)=3
First, distribute:
4(t)+4(1/4)=3
4t+1=3
Then isolate the variable:
4t+1-1=3-1
4t=2
4t/4=2/4
t=2/4
t=1/2
The equation is solved first by distributing the 4, then by subtracting 1 from both sides to isolate the variable term, and finally by dividing both sides by 4 to solve for 't', which gives the solution t = 0.5.
Explanation:To solve the equation 4(t+1/4) = 3, we start by distributing the 4 inside the parentheses, so we get 4t + 1 = 3.
Then, we subtract 1 from both sides of the equation to isolate the variable term, and this gives us 4t = 2.
Finally, to solve for 't', we divide both sides of the equation by 4, and we find that t = 0.5.
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the bells obtain a 20-year, $90,000 conventional mortgage at a 8.5% rate on a house selling for $130,000. their monthly mortgage payment, including principal and interest, is $781.20. They also pay 3 points at closing.
a) determine the total amount the bells will pay for their house.
b) how much of the cost will be interest (including the 3 points)?
c) how much of the first payment on the mortgage is applied to the principal?
a) The total amount the Bells will pay for their house is $187,488. b) The interest paid, including the 3 points, is $97,488. c) The exact amount applied to the principal in the first payment is unknown without additional information.
Explanation:a) To determine the total amount the Bells will pay for their house, we need to calculate the total amount paid over 20 years. The monthly mortgage payment is $781.20, so the annual payment would be $781.20 x 12 = $9374.40. Therefore, over 20 years, the Bells will pay $9374.40 x 20 = $187,488.
b) The interest paid over the 20-year mortgage period can be calculated by subtracting the total mortgage amount from the total amount paid. The total mortgage amount is $90,000, so the interest paid is $187,488 - $90,000 = $97,488, including the 3 points.
c) The first payment on the mortgage is typically applied mostly to the interest. However, to determine the exact amount applied to the principal, we need more information about the breakdown of the monthly mortgage payment between interest and principal.
6. Mark wants to mail postcards to eight of his friends while he is on vacation. If postcards cost $1.25 each and stamps for the cards cost $0.40 each, how much will it cost
Mark to mail the eight postcards?
$10.40
$10.32
$12.00
$13.20
Answer:
$13.20
Step-by-step explanation:
so add the prices up 1.25+0.40 should be
$1.65 now multiply it by the 8 postcards he will send
so 1.65•8= $13.20
24. Rectangle A is 16 feet wide and is 8 feet longer than Rectangle B which is 14 feet wide.
If the sum of both rectangles perimeters is 156 feet, what is the area of Rectangle A?
Answer:
The Area of rectangle A is 576 feet² .
Step-by-step explanation:
Given as :
The width of rectangle A = 16 feet
The Length of rectangle A = 8 feet + The length of rectangle B
The width of rectangle B = 14 feet
Let The length of rectangle B = L feet
So, The Length of rectangle A = 8 feet + L feet
The perimeter of rectangle A + The perimeter of rectangle B = 156 feet
So, 2 × ( Length A + width A ) + 2 × ( Length B + width B ) = 156 feet
Or, 2 × ( 8 + L + 16 ) + 2 × ( L + 14 ) = 156 feet
Or, 2 ×( 24 + L ) + 2 × ( L + 14 ) = 156 feet
Or, 48 + 2 L + 2 L + 28 = 156
Or, 76 L + 4 L = 156
So, 4 L = 156 - 76
Or, 4 L = 80
∴ L = [tex]\frac{80}{4}[/tex] = 20 feet
So , The Length of rectangle A = 8 feet + 28 feet = 36 feet
And The width of rectangle A = 16 feet
So, Area of rectangle A = Length of rectangle A × width of rectangle A
I.e Area of rectangle A = 36 × 16 = 576 feet²
Hence The Area of rectangle A is 576 feet² . Answer
On a coordinate plane, a straight red line with a positive slope, labeled g of x, crosses the x-axis at (negative 3, 0) and the y-axis at (0, 3). A straight blue line with a positive slope, labeled f of x, crosses the y-axis at (0, negative 3) and the x-axis at (1, 0). Both lines intersect at (3, 6). Which statement is true regarding the functions on the graph? f(6) = g(3) f(3) = g(3) f(3) = g(6) f(6) = g(6)
Answer:
f(3) = g(3)
Step-by-step explanation:
we know that
When solve a system of linear equations by graphing, the solution of the system is the intersection point both lines
The intersection point is common point for bot lines
In this problem
we have the system of equations
f(x)
g(x)
The intersection point is (3,6)
That means that the solution for the system is the point (3,6)
so
For x=3
The value of f(3)=6 and the value of g(3)=3
therefore
f(3)=g(3)
Verify the statements
Find the equation of the blue line f(x)
(0,-3) and (1,0)
the slope is
[tex]m=(0+3)/(1-0)=3[/tex]
The equation in slope intercept form is equal to
[tex]f(x)=3x-3[/tex]
Find the equation of the red line g(x)
(-3,0) and (0,3)
the slope is
[tex]m=(3-0)/(0+3)=1[/tex]
The equation in slope intercept form is equal to
[tex]g(x)=x+3[/tex]
case 1) f(6) = g(3)
The statement is false
Because
For x=6 -----> [tex]f(6)=3(6)-3=15[/tex]
For x=3 ----> [tex]g(3)=3+3=6[/tex]
therefore
[tex]f(6) \neq g(3)[/tex]
case 2) f(3) = g(3)
The statement is true
Because
For x=3 -----> [tex]f(3)=3(3)-3=6[/tex]
For x=3 ----> [tex]g(3)=3+3=6[/tex]
therefore
[tex]f(3)=g(3)[/tex]
case 3) f(3) = g(6)
The statement is false
Because
For x=3 -----> [tex]f(3)=3(3)-3=6[/tex]
For x=6 ----> [tex]g(6)=6+3=9[/tex]
therefore
[tex]f(3) \neq g(6)[/tex]
case 4) f(6) = g(6)
The statement is false
Because
For x=6 -----> [tex]f(6)=3(6)-3=15[/tex]
For x=6 ----> [tex]g(6)=6+3=9[/tex]
therefore
[tex]f(6) \neq g(6)[/tex]
Answer:
f(3)=g(3)
Step-by-step explanation:
Edge 2021
There are 10 marbles. What is the probability of drawing two yellow marbles if the first one is not placed back into the bag before the second draw?
Answer: 1/10
Step-by-step explanation:
There is 1 yellow marble out of the 10 marbles
Answer:
Step-by-step explanation:
1/9
Suppose you have a $60,000 loan with an annual percentage rate of 8% for 25 years.
What would be the effect of paying the required monthly rate and an additional $100 each month on the cost of the two loan?
.
Paying an extra $100 each month on a $60,000 loan with an 8% APR over 25 years will reduce the loan term and total interest paid. To calculate the effect, compute the total cost of the loan with and without the extra payments and subtract these two sums.
Explanation:The subject at hand pertains to understanding the impact of additional payments on a loan, which falls under the domain of financial mathematics. Let's dissect the impact of paying an extra $100 per month on a $60,000 loan with an 8% annual interest rate over 25 years.
Firstly, we need to calculate the monthly payment for a 25-year loan of $60,000 at 8% interest. This can be calculated by using a loan calculator or the loan payment formula. Then, calculate the total cost of the loan by multiplying this monthly payment by the number of months in the loan term (25 years x 12 months).
You then do a similar calculation, but this time add an extra $100 to the monthly payment. The extra repayment will reduce the loan term and decrease the total interest paid. To see the effect, compare the total cost of the loan with and without the extra $100.
Therefore, the difference between these two sums will give you the saved amount due to the additional $100 monthly payment. This saving is the effect of making additional payments on the loan.
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Making additional monthly payments can shorten the loan term and save money on interest payments.
Explanation:To calculate the effect of making additional monthly payments on the cost of the loan, we can compare the total interest paid and the duration of the loan with and without the additional payments. Without any additional payments, the monthly payment for a $60,000 loan with an 8% APR and a 25-year term would be $459.18. With an additional $100 each month, the monthly payment would increase to $559.18.
By making the additional $100 payments, the loan would be paid off faster, reducing the term from 25 years to approximately 17 years and saving the borrower 8 years of monthly payments. Additionally, the total interest paid over the course of the loan would also be significantly reduced compared to just paying the required monthly payments.
In summary, making extra monthly payments of $100 can shorten the loan term and save the borrower money on interest payments.
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what does the y-intercept represnt
Answer: The y-intercept represents what is the value of y when x=0.
Henry consistently makes seven out every ten free throws he shoots. At the same rate, how many free throws will he make after he shoots 90 of them?
o to the repentant to ce actingon the surfaces or docts.
6. What are the units of friction
triction? Noaton, N = ham.s.
7. Review the questions in the lab manual.
ficient of static-boolean not
2.20 NS
22 Sino-206
8. A 220N box is set on 100 decline. What is the force of friction if the coefficient of static
docsit me
friction is 0.67? Does the object slide down, if so, with what acceleration? You may change
these numbers around for practice
box QƏN
fe Gm F ms
2200 casio
P= 220N CO510.6.67
F mga 0.67
9. A 400 N box is on a level floor. Instead of pushing it, you decide to drag it
ver Floor. Instead of pushing it, you decide to drag it by attaching a
rope at a 45°. You are able to muster 200 N of force pulling at that angle. With
does the box move? If not, how much force is required to get the box to move
with 300 and 600 with us = 0:4 and 0.6.
HON-0.3 =120N
SOX0.3/40 - dob
200-120- GON
VIII Momentum
120X0.
31H = 0.09
ce pulling at that angle. With a us of 0.3
quired to get the box to move? Try solving
Answer:s
Step-by-step explanation:
The equation of a number and 15 is no greater than 450.what are the possible values for the number
Answer:
x ≤ 435
Step-by-step explanation:
Given is the following condition.
The sum of a number and 15 is less than and equal to 450.
So, if the number is x, then we have
x + 15 ≤ 450
⇒ x + 15 - 15 ≤ 450 - 15
⇒ x ≤ 435
Therefore, the solutions of the number are either 435 or less than 435 up to negative infinity. ( Answer )
Using the double number line shown, for the equation 5 x + 4 = 14 5x+4=14, what is the value of x?
Number line is the line in which the numbers are marked at the intervals to the show the inequality. The value of the x, is 2 which is shown on the number line by attached image below.
Given information-The equations given in the problem are,
[tex] 5 x + 4 = 14[/tex]
Number lineNumber line is the line in which the numbers are marked at the intervals to the show the inequality.
Here in the problem the given equation is,
[tex] 5 x + 4 = 14[/tex]
Solve it for the x,
[tex]\begin{aligned}\\ 5 x &= 14-4\\ 5x&=10\\ x&=\dfrac{10}{5} \\ x&=2\\ \end[/tex]
The value of the x is 2. It can be shown on the number line graph by making a circle on the number 2.
As the inequality is shown with the equal sign in the given equation. Therefore the direction would be nigher side. The graph for the given equation number line shown in the attached image.
Hence the value of the x, is 2 which is shown on the number line by attached image below.
Learn more about the number line here;
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Final answer:
To solve the equation 5x + 4 = 14, subtract 4 from both sides, then divide by 5. This gives x = 2, which can be checked by substitution back into the equation and verifying it holds true.
Explanation:
To solve the equation 5x + 4 = 14, we need to isolate the variable x. First, we subtract 4 from both sides of the equation to get 5x = 10. Next, we divide both sides of the equation by 5 to find the value of x:
5x ÷ 5 = 10 ÷ 5
x = 2
This means that the value of x that satisfies the equation 5x + 4 = 14 is 2. We can check our answer by substituting 2 back into the original equation to see if it makes a true statement:
5(2) + 4 = 10 + 4 = 14
Since the left side of the equation equals the right side, x = 2 is indeed the solution.
891 g, 7,800 mg, 0.5 kg order least to greatest
Answer:
0.5 891 7,800
Step-by-step explanation:
is because least always go first
To order from least to greatest, convert all measurements to grams: 7,800 mg becomes 7.8 g, and 0.5 kg becomes 500 g. The order is 7.8 g, 500 g, and 891 g.
To order the weights 891 g, 7,800 mg, and 0.5 kg from least to greatest, we first convert them all to the same unit. Given that there are 1,000 mg in a gram (g) and 1,000 g in a kilogram (kg), we can convert as follows:
7,800 mg is converted to grams by dividing by 1,000, which gives us 7.8 g.0.5 kg is converted to grams by multiplying by 1,000, which gives us 500 g.Now that we have all the weights in grams, we can easily compare them:
7.8 g891 g500 gOrdering these from least to greatest, we get: 7.8 g < 500 g < 891 g.
Please answer this correctly is the answer
7:49am
3:31pm
6:31pm
9:49am
Answer:
3:31 PM
Step-by-step explanation:
When the planes arrives in San Francisco, the time is 4:91 or 5:31 PM(central time/yellow). From Central time period to pacific time period, the time decreases by 2 hours. 5:31 - 2 hours is 3:31. The time is still PM. Answer is 3:31 PM.
Answer:
3:31pm
Step-by-step explanation:
Because each 60mins=1hr
51+40=91 which equals an hour and thirty 1 minutes plus an hour and 40 minutes which equals 3:31
Hope I'm right good luck!!1