Answer:
More students chose math
Step-by-step explanation:
4/25 can be converted into a percent and percents are out of 100, so 25x4 is equal to 100 and 4 x 4 is equal to 16
so 4/25 is 16%
0.28 is 28% Because you move the decimal to places to the right
How do you write 549,867 in expanded form?
In expanded form, 549,867 would be written like this: 500,000 + 40,000 + 9,000 + 800 + 60 + 7. This is how it is supposed to be.
Hope this helped!
Nate
Answer:
(5x100,000) + (4 x 10,000) + (9 x 1,000) + (8 x 100) + (6 x 10) + (7 x 1)
Step-by-step explanation:
multiply the number by the place value.
Pencils cost $0.24 each , and pens cost $.79 each. Mrs. Trevino bought 6 pencils and 5 pens. How much did she pay for the pencils and pens in dollars and cents?
Answer:
$5.39
Step-by-step explanation:
5 x .79 = 3.95
6 x .24 = 1.44
3.95 + 1.44 = 5.39
Answer:
For the pencils, she paid: $1.44
For the pens, she paid: $3.95
Step-by-step explanation:
Pencils cost $0.24each.
Pens cost $0.79 each.
Mrs. Trevino bought 6 pencils and 5 pens.
For the pencils, she paid: 6 × $0.24 = $1.44
For the pens, she paid: 5 × $0.79 = $3.95
It takes 687 Earth days for the planet Mars to revolve around the sun once. How many Earth days does it take Mars to revolve around the sun four times
Answer:
2748 days
Step-by-step explanation:
687 days * 4 revolves = 2748
2748 earth days.
What are the steps of simplification?Expressions included in parentheses, brackets, braces, and fraction bars should be made simpler. Analyze each power. Divide and multiply all numbers from left to right. Make sure to add and subtract all numbers from left to right. last but not least, use any method. BODMAS or PEMDAS.
Given, It takes 687 Earth days for the planet Mars to revolve around the sun once.
Earth days does it take Mars to revolve around the sun four times = 4 *687
Therefore, 2748 Earth days take Mars to revolve around the sun four times.
Learn more about simplification here:
https://brainly.com/question/28996879
#SPJ2
A carpenter finds that if she charges p dollars for a chair, she sells 600 – 3p of them each year.
How much should she charge to maximize her annual revenue?
Answer:
p=$100
Step-by-step explanation:
Let
y -----> annual revenue
p ----> the charge in dollars for a chair
we know that
The revenue is equal to the number of chairs multiplied by the charge for one chair
so
[tex]y=(600-3p)p[/tex]
[tex]y=600p-3p^2[/tex]
This is the equation of a vertical parabola open downward.
The vertex is a maximum
using a graphing tool
The vertex is the point (100,30,000)
That means
The maximum revenue is y=$30,000
when the carpenter charge $100 for a chair
The revenue is maximum when a fee of $100 is charged per chair.
EquationAn equation is an expression used to show the relationship between two or more variables and numbers.
Revenue is the product of the price per item and the total number of items.
Hence:
Revenue (R) = Price * number of item
R = p * 600 - 3o
R = 600p - 3p²
Maximum revenue is at R' = 0:
R' = 600 - 6p
6p = 600
p = 100
The revenue is maximum when a fee of $100 is charged per chair.
Find out more on Equation at: https://brainly.com/question/2972832
The length of a rectangle is 4.5 meters. The perimeter is 15.6 meters. What is the width?
Answer:
The width is 3.3 meters
Step-by-step explanation:
The perimeter of a rectangle is 2L + 2W. L is 4.5.
P = 2L + 2W
15.6 = 4.5 * 2 + 2W
15.6 = 9 + 2W
6.6 = 2W
3.3 = W
2 1/8 x 2 6/9
(Multiplying fractions)
Answer:
17/6
Step-by-step explanation:
Start off with
2 1/8 * 2 6/9
Convert mixed number into improper fraction
17/8
reduce fraction with 3
17/8 * 2 * 2/3
Reduce numbers with GCD 2
17/4 * 2/3
Repeat
17/2 * 1/3
Multiply fractions
17*1/2*3
You then get...
17/6!
[Alternative forms: 2 5/6, 2.83]
2.4 = m + 3.7 linear equations solving
Answer:
m = -1.3
Step-by-step explanation:
subtract 3.7 from both side so it gets you 2.4-3.7 = m
then you will get -1.3
Marta gasto $60 en la compra de cuadernos iguales si cada cuaderno hubiera costado $2 más Marta hubiera adquirido 80 cuadernos menos por los mismos $60 ¿Cuántos cuadernos compró Marta?
Answer:
[tex]103\ notebooks[/tex]
Step-by-step explanation:
The question in English is
Martha spent $60 to buy the same notebooks if each notebook had cost $2 plus Martha would have bought 80 fewer notebooks for the same $60. How many notebooks did Martha buy?
Let
x -----> the cost of each notebook
n -----> number of notebooks that Marta bought
we know that
[tex]nx=60[/tex] -----> [tex]n=\frac{60}{x}[/tex] -----> equation A
[tex](n-80)(x+2)=60\\\\nx+2n-80x-160=60\\\\n(x+2)-80x=220 ---> equation\ B[/tex]
substitute equation A in equation B and solve for x
[tex]\frac{60}{x}(x+2)-80x=220[/tex]
Multiply by x both sides to remove the fraction
[tex]60(x+2)-80x^2=220x[/tex]
[tex]60x+120-80x^2=220x[/tex]
[tex]-80x^2-160x+120=0[/tex]
Using a graphing tool
Solve the quadratic equation
The solution is
x=$0.581
see the attached figure
Find the value of n
[tex]n=\frac{60}{0.581}=103\ notebooks[/tex]
WILL MARK BRAINLIEST!!!
The graph of the function f(x) is shown below.
What is x when f(x)=0?
A. -1.8
B. -1.2
C. 0
D. 5
Answer:
D5 is the answer im pretty sure
Step-by-step explanation:
Answer:
The answer is D (5)
Step-by-step explanation:
I just took the test and got it right
Hopefully this helps you
pls mark brainlest
The formula for the volume V of a cylinder is V = πr2h, where r is the radius of the base and h is the height of the cylinder. Solve the formula for h.
Choose the correct formula.
A. h=Vπr2
B. h=Vπr2
C. h=Vr2π
D. h=Vπr2
Part B
Find the height of a cylinder with a volume of 36π cm3 and a base with a radius of 3 cm.
h = __ cm
Answer:
Part A) [tex]h=V/(\pi r^{2})[/tex]
Part B) [tex]h=4\ cm[/tex]
Step-by-step explanation:
Part A)
we have the formula of the volume of a cylinder
[tex]V=\pi r^{2}h[/tex]
Solve for h
That means ----> isolate the variable h
Divide both side by πr²
[tex]V/(\pi r^{2})=\pi r^{2}h/(\pi r^{2})[/tex]
Simplify
[tex]V/(\pi r^{2})=h[/tex]
Rewrite
[tex]h=V/(\pi r^{2})[/tex]
Part B) Find the height of a cylinder with a volume of 36π cm3 and a base with a radius of 3 cm
we have
[tex]V=36\pi\ cm^3[/tex]
[tex]r=3\ cm[/tex]
substitute in the formula and solve for h
[tex]h=36\pi/(\pi 3^{2})[/tex]
[tex]h=4\ cm[/tex]
To solve for h in the formula V = πr2h, divide both sides of the equation by πr2 to isolate h. The height of a cylinder with a volume of 36π cm3 and a base radius of 3 cm is 4 cm.
Explanation:To solve the formula V = πr2h for h, we need to isolate h on one side of the equation. To do this, divide both sides of the equation by πr2. This gives us the equation h = V/(πr2). Therefore, the correct formula for solving for h is h = V/(πr2).
To find the height of a cylinder with a volume of 36π cm3 and a base radius of 3 cm, substitute the given values into the formula h = V/(πr2). This gives us h = 36π / (π * 32). Simplifying further, h = 36 / 9 = 4 cm.
Learn more about Solving for the height of a cylinder here:https://brainly.com/question/35914373
#SPJ3
How would I solve 2/3+3n/5=13/15
well, one way to go about it is, to do away with the denominators by using the LCD of all fractions, hmmm let's see, we have denominators of 3,5 and 15, so the LCD will just be 15.
now let's multiply both sides by the LCD of 15 to do away with the denominators,
[tex]\bf \cfrac{2}{3}+\cfrac{3n}{5}=\cfrac{13}{15}\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{15}}{15\left( \cfrac{2}{3}+\cfrac{3n}{5} \right)=15\left( \cfrac{13}{15} \right)}\implies 10+9n=13 \\\\\\ 9n=3\implies n=\cfrac{3}{9}\implies n = \cfrac{1}{3}[/tex]
I am a 2-digit number. The sum of my digits is 11. I am divisible by both 4 and 7
Answer:
56 or 84
Step-by-step explanation:
Answer:
It's 56
Step-by-step explanation:
We have 2 digit number the sum of digits is 11 and it is divisible by 4 and 7 so, first possibility is 4×7=28 ; but the sum of digits is 11; so,the sum of digits is 2+8=10 which does not satisfies the first constraint next possible 2 digit number is 56: since the sum of digits is 5+6=11, 56 ÷ 7 = 8 , 56 ÷ 4 = 9How do you solve this? Please help
I don't understand how to find slope, can someone help me with the problems circled in blue? Thanks!
(show your work please)
the equation to find any slope given two points is (y1-y2)/(x1-x2)
given this equation, the slope of problem 24 would be (6-3)/(-1-4) or (3-6)/(4+1) which is equal to -3/5,
depending on which point you call (x1,y1) and (x2,y2)
calling either of the points 1 or 2 will still result in the same slope
What percent of 120 is 42? A. 35% B. 28.6% C. 4.2% D. 33%
i need a step by step explanation
Answer:
A. 35%
Step-by-step explanation:
You can write 42 of 120 as a fraction ---> 42/120
If you simplify you get 7/20.
7/20 can also be written as 35/100, so the percentage would be 35%.
Answer:
A. 35% BRAINLIEST WOULD BE APPRECIATED!
Step-by-step explanation:
Do guess and check. Start with A.
120*0.35=42 ~ that works! check the others to be sure.
120*0.286=34.272 ~ nope!
120*0.042=don't even need to do it, unreasonable.
120*.33=39.6 ~ nope!
Ten less than a number is three more than six times the number
Answer:
x-10=6x+3
Step-by-step explanation:
Okay, Is means equals. I used x as the unknown number. 10 less than a number means x-10. Squishing a variable and constant ( x and 6) together means multiplication (Constant always going before the variable) It's three more than six times the number, so it's six times the number plus three.
Hope I helped :)
A blueprint of a shopping complex shows the bottom edge of the roof to be 93 feet above the ground. If the roof
rises to a point 171 feet above the ground over a horizontal distance of 6.5 yards, what is the slope of the roof?
12
O
1.2
08
Slope = (rise) / (run)
Rise = (171-93) = 78 ft
Run = 6.5 yards = 19.5 ft
Slope = (78 / 19.5)
Slope = 4
The correct figure is not included in the list of choices.
The slope is 4.
What is slope?The slope is defined as the ratio of the vertical change between two points, the rise, to the horizontal change between the same two points, the run.
given:
roof rises= 171 feet above the ground
horizontal distance = 6.5 yards
using,
Slope = (rise) / (run)
Rise
= (171-93)
= 78 ft
Run
= 6.5 yards
= 19.5 ft
Slope
= (78 / 19.5)
= 4
hence, the slope is 4.
Learn more about slope here:
https://brainly.com/question/14548961
#SPJ2
1. In triangle ABC, the measure of angle A is 40°.
a. Give possible measures for angles B and C if triangle ABC is isosceles.
Answer:
Angles B and C are 70 degrees.
Step-by-step explanation:
The sum of three angles of a triangle is 180 degrees.
Of these angle A in triangle ABC is given as 40 degrees.
Another input is that the triangle is isosceles. This means that AB=AC or in other words, angle B and angle C are equal.
Let the angle B or angle C be represented as x degrees.
Representing this in equation format:
A + B + C = 180
=> 40 + x + x = 180
=> 2x = 180 - 40 = 140
=> x = 140/2 = 70
So both the angles B and C are 70 degrees.
If triangle ABC is isosceles, then angles B and C both measure 70°.
We have,
In an isosceles triangle, two angles are congruent (they have the same measure). If angle A is 40°, and triangle ABC is isosceles, then angles B and C must each measure:
B = C = (180° - 40°) / 2
= 140° / 2
= 70°
So, if triangle ABC is isosceles, both angles B and C would measure 70°.
Thus,
If triangle ABC is isosceles, then angles B and C both measure 70°.
Learn more about triangles here:
https://brainly.com/question/25950519
#SPJ3
is 136 a perfect square
Answer:
No, because there is no whole number that when multipled by itself gives 136Step-by-step explanation:
11² = 11 · 11 = 121 < 136
12² = 12 · 12 = 144 > 136
the expression for determining the number of distinct subsets for a set with n distinct elements is
Answer:
The expression for determining the number of distinct subsets for a set with n distinct elements is 2^n (2 raise to the power n).
Step-by-step explanation:
The expression for determining the number of distinct subsets for a set with n distinct elements is 2^n (2 raise to the power n).
If a set has 0 elements then it has 1 subset which is a null set (2^0=1)
if a set has 1 element then it has 2 subsets. One is a null set and the other one would be itself (2^1 = 1).
Like wise if a set has 5 elements then it has 32 subsets (2^5 = 32)
Lets solve an example. We have a set A and we have to find the subsets of set A.
A = {1,2,}
2^n = 2^2 = 4
It means that the number of all the possible subsets = 4
{0},{1},{2},{1,2}....
In this exercise we have to have knowledge of sets and subsets to find the value of the unknown, like this:
[tex]2^n = 2^2=4[/tex]
So we have to remember some ideas about sets like:
The expression for determining the number of distinct subsets for a set with n distinct elements is 2^n (2 raise to the power n). for exemple:[tex]2^0=1\\2^1 = 1\\2^5 = 32[/tex]
We have a set A and we have to find the subsets of set A, so that is :
[tex]A = {1,2,}\\2^n = 2^2 = 4\\A= {0},{1},{2},{1,2}....[/tex]
See more about sets at brainly.com/question/8053622
x/5 -8=4 find the value of x
Answer:
x=60
Step-by-step explanation:
I'm assuming you meant this: (x/5)-8=4
In which case you would add 8 to both sides to get rid of the 8 on the left (your goal is to get x by itself so you want to move the numbers on the x side to the other side of the equal sign)
(x/5)=12
Then you would multiply 5 on both sides to get rid of the fraction with the 5 on the bottom on the left side.
x=60
There's your answer.
Solve for x: 6x + 3 = 5x − 8
Answer:
x = -11
Step-by-step explanation:
First subtract 5x from both sides (6x - 5x) and the equation turns into: x + 3 = -8. Then subtract 3 from both sides, -8 - 3, and that equals -11. And so the final answer is -11.
The value of x from the equation 6x + 3 = 5x − 8 is -11.
What is a system of equations?A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
Given equation ; 6x + 3 = 5x − 8
Solve for x:
6x + 3 = 5x − 8
First subtract 5x from both sides
6x + 3 - 5x = − 8
x + 3 = -8
Then subtract 3 from both sides;
x = -8 - 3
x = -11
Thus, the final answer is -11.
Therefore, The value of x from the equation 6x + 3 = 5x − 8 is -11.
Learn more about equations here;
https://brainly.com/question/10413253
#SPJ2
Is -2.75 greater than or less than -2.5
Answer:
Less because they are negative
Step-by-step explanation:
The number-2.75 is less than the number -2.5.
What is a number system?A numeral system is a way of writing numbers; it's a way of mathematically notating a collection of numbers by utilizing a consistent set of digits or other symbols. In several numeral systems, the same set of symbols may represent various numbers.
Given numbers are -2.75 and -2.5.
The number -2.75 is less than the number -2.5. For the negative integers the number with a higher magnitude but having a negative sign is lesser than the number with a small magnitude with a negative sign.
Therefore, the number-2.75 is less than the number -2.5.
To know more about the number system follow
https://brainly.com/question/17200227
#SPJ2
what do the word enlightened mean
Answer:
To understand something or someone completely
Step-by-step explanation:
It originates from the word enligtment
The supermarket is advertising double coupons up to $1.25 this Friday only. Which coupon can be doubled?
$1.30 off shaving cream
$1.20 off dog food
$2.25 off body wash
$1.50 off markers
Answer:
1.20 off dog food
Step-by-step explanation:
Inequalities help us to compare two unequal expressions. The coupon that can be doubled is $1.25. The correct option is B.
What are inequalities?Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed. It is mostly denoted by the symbol <, >, ≤, and ≥.
Given that the supermarket is advertising double coupons up to $1.25. Therefore, every coupon that has a value less than or equal to $1.25 will be doubled. Therefore, we can write the inequalities as,
x ≤ $1.25
Now, if we look at the given options then the only option that is less than $1.25 is the coupon for dog food.
1.20 < 1.25
Hence, the coupon that can be doubled is $1.25.
Learn more about Inequality here:
https://brainly.com/question/19491153
#SPJ2
−4 4/5 ÷ 4
A. -1 1/5
B. -4/5
C. 4/5
D. 1 1/5
Answer:
A. -1⅕
Step-by-step explanation:
[tex]-4\frac{4}{5}\div 4 = -4,8\div 4 = -1,2 = -1 \frac{1}{5} [/tex]
I am joyous to assist you anytime.
During November, sales are
at their peak. The store
manager must work 40
hours that week. How much
Will the manager earn?
Answer:it depends how much he is earning
Write the equation of the line in slope-intercept form.
m = 2/9, y-intercept (0,5)
The equation of the line in slope-intercept form is
Step-by-step explanation:
Given :- y intercept = ( 0 , 5 ) i.e, the line cuts y axis at 5
and , slope of the line ( m ) = 2/9
• Slope intercept form of the equation is
y = mx + c
Where , m is slope of the line
and c is y intercept !!
[tex]y = \frac{2}{9} x + 5 \\ \\ because \: c \: = 5[/tex]
Dan gets pic 'n mix when at the cinema and makes his bag up with 3 types of sweet. He picks 3 times as many cola bottles as smarties. He also picks twice as many marshmallows as smarties. What proportion of the bag of sweets are smarties?
Give your answer in its simplest form.
Answer:
1/6
Step-by-step explanation:
Let
c-----> the number of cola bottles that Dan picks
s ----> the number of smarties that Dan picks
m ---> the number of marshmallows that Dan picks
we know that
c=3s ----> equation A
m=2s ---> equation B
we know that
To find out the proportion of the bag of sweets that are smarties, divide the number of smarties by the total of sweets
The total of sweets is equal to
(c+s+m)
substitute equation A and equation B in the total of sweets
(3s+s+2s) =6s
Find the proportion
s/6s
Simplify
1/6
The proportion of smarties in Dan's bag of sweets, in its simplest form, is 1/6.
Explanation:To solve the question about what proportion of the bag of sweets are smarties, let's assume Dan picks x number of smarties. Following the information provided, he picks 3 times as many cola bottles as smarties, which is 3x, and twice as many marshmallows as smarties, which is 2x. The total number of sweets in the bag is the sum of smarties, cola bottles, and marshmallows, which amounts to x + 3x + 2x = 6x. The proportion of smarties in the bag is the number of smarties divided by the total number of sweets, so we get:
Proportion of smarties = Number of smarties / Total number of sweets = x / 6x = 1/6.
The proportion of smarties in the simplest form is 1/6.
whats 67/8 simplified
Answer:
8 3/8
Step-by-step explanation:
Answer:
8.375 or 8 3/8