We are given sides of the triangle by expression
First side : n
Second side : m = 5n-5.
Third side : l = 5/4 m - n.
Perimeter is 90.
Therefore, first equation could be set :
n +m +l = 90 --------------equation(1)
Second equation would be
m = 5n-5 --------------equation(2)
Third equation would be
l = 5/4 m - n --------------equation(3)
Let us solve the system of equations by substitution.
Substituting m = 5n-5 and l = 5/4 m - n in first equation.
We get
n +5n-5 +5/4 m - n= 90
Now, substituting m = 5n-5 in above equation we get
n +5n-5 +5/4 (5n-5) - n= 90
5n + 25n/4 -5 - 25/4 =90
5n + 6.25n -5-6.25 = 90.
11.25n-11.25 = 90
Adding 11.25 on both sides, we get
11.25n-11.25+11.25 = 90+11.25
11.25n = 101.25.
Dividing both sides by 11.25, we get
n=9.
Plugging n=9 in 2nd equation.
m = 5(9)-5 = 45 -5 = 40.
Plugging n=9 and m=40 in first equation, we get
9 +40 +l = 90
49 +l = 90.
Subtracting 49 from both sides, we get
49-49 +l = 90-49
l = 41.
Therefore, sides are of lengths l = 41, m= 40 and n=9.
4,divided by 3,476 i need helping hand
Question 4 Unsaved What is the remainder when the polynomial 6x2+11x−3 is divided by 2x−1?
To divide the polynomial [tex]6x^2+11x-3[/tex] by the polynomial [tex]2x-1,[/tex] you have to do such steps:
1 step. Multiply the polynomial [tex]2x-1[/tex] by [tex]3x[/tex]. You get the polynomial [tex]6x^2-3x.[/tex]
2 step. Subtract the polynomial [tex]6x^2-3x[/tex] fro mthe polynomial [tex]6x^2+11x-3:[/tex]
[tex]6x^2+11x-3-(6x^2-3x)=6x^2+11x-3-6x^2+3x=14x-3.[/tex]
Step 3. Multiply the polynomial [tex]2x-1[/tex] by [tex]7[/tex] to get the polynomial [tex]14x-7.[/tex]
Step 4. Subtract the polynomial [tex]14x-7[/tex] from the polynomial [tex]14x-3:[/tex]
[tex]14x-3-(14x-7)=14x-3-14x+7=4.[/tex]
Step 5. Write the division result:
[tex]6x^2+11x-3=(2x-1)(3x+7)+4.[/tex]
Here the quotient is the polynomial [tex]3x+7[/tex] and the remainder is the polynomial [tex]4.[/tex]
Answer: the remainder is 4.
Answer:
-1
Step-by-step explanation:
Just took the test
Debi walks laps around the mall for exercise during the winter months. The table represents the number of steps recorded on her meter as she walks laps around the mall one day. Which statement is true about the graph of the line representing Debi’s data?
a. Debi walks 1,875 steps per lap around the mall.
b. One lap around the mall is equal to about 2,425 steps.
c. One lap around the mall is equal to 4,300 steps.
d. Debi walks 6,175 steps per lap around the mall.
Laps / Steps
0 / 1,875
1 / 4,300
2 / 6,725
3 / 9,150
4 / 11,575
Answer:
The correct option will be: b. One lap around the mall is equal to about 2,425 steps.
Step-by-step explanation:
Here, we will just find the slope of the line representing Debi’s data. For that, we will take any two data from the table in form of point like [tex](x,y)[/tex]
Lets take two points as [tex](0, 1875)[/tex] and [tex](2, 6725)[/tex]
Formula for finding the slope is: [tex]m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex] , where [tex](x_{1}, y_{1})[/tex] and [tex](x_{2}, y_{2})[/tex] are two given points.
Here, [tex]x_{1}= 0 , y_{1}= 1875 , x_{2}=2 , y_{2}=6725[/tex]
So, plugging these values into the above formula, we will get......
[tex]m= \frac{6725-1875}{2-0}=\frac{4850}{2}=2425[/tex]
That means, one lap around the mall is equal to about 2,425 steps.
Answer:
One lap around the mall is equal to about 2,425 steps.
Step-by-step explanation:
Of the 36 students in the environmental club, 15 or boys and 21 are girls. The president of the club wants to add more boys so that the boys represent 50% of the students in the club.
Mary has a planting pot with a circumference of 92 cm. If a plants' directions state that it must be planted directly in the middle of the pot, what would be the exact measurement? Hint: Find the radius.
24.64 cm
14.64 cm
19.64 cm
22.64 cm
Answer:
14.64 cm
Step-by-step explanation:
this problem is finding radius of a circle from the circumference given.
Circumference of a circle = 2(3.14) r
Using the above we can find one if we know the other. In our case we know circumference and calculate radius.
Circumference = 2(3.14)r= 92 cm
Hence r = 92/2(3.14) = 14.6497cm
apprxoximately 14.64 cm is close to the answer
Hence answer is 14.64 cm.
Answer:
14.64 cm
Step-by-step explanation:
The circumference of a planting pot = 92 cm
To find the measurement of the plant which is planted directly planted in the middle of the pot, we need to find the radius of the planting pot.
We know that the formula of the circumference of a circle is:
Circumference = [tex]2\pi r[/tex]
Therefore, putting the value of the circumference in the formula to get:
92 = 2 x 3.14 x r
r = 92 / (3.12 x 2) = 14.64 cm
Therefore the plant is 14.64 cm long.
Divide using synthetic division, and write a summary statement in fraction form. 2x5-x4+3x2-x+5/x-1
we are given
[tex]\frac{2x^5-x^4+3x^2-x+5}{x-1}[/tex]
Here , we have
[tex]dividend=2x^5-x^4+3x^2-x+5[/tex]
[tex]divisor=x-1[/tex]
now, we can use synthetic division
so, we get
[tex]Quotient=2x^4+x^3+x^2+4x+3[/tex]
[tex]Remainder=8[/tex]
now, we can write in fraction form
[tex]\frac{2x^5+x^4+3x^2-x+5}{x-1}=(2x^4+x^3+x^2+4x+3)+\frac{8}{x-1}[/tex]............Answer
To divide using synthetic division, arrange the polynomial in descending order, set up the synthetic division table, find the root of the divisor, perform the synthetic division, and read the coefficients of the quotient. In this case, the quotient is 2x^3 + x^2 + 4x + 3 with a remainder of -1.
Explanation:
To divide using synthetic division, you need to follow these steps:
Arrange the polynomial in descending order.Set up the synthetic division table and write down the coefficients of the polynomial.Find the root of the divisor and put it in the divisor column.Perform the synthetic division by bringing down the first coefficient, multiplying it by the root, and adding it to the next coefficient. Repeat this process until you reach the last coefficient.The last number in the synthetic division table is the remainder.The other numbers in the table form the coefficients of the quotient.In this case, the polynomial is 2x5 - x4 + 3x2 - x + 5, and the divisor is x - 1. Using synthetic division, we divide the coefficients:
+--+--+--+--+--+--+The coefficients in the bottom row of the synthetic division table are 2, 1, 4, 3. Therefore, the quotient is 2x3 + x2 + 4x + 3, and the remainder is -1.
Learn more about Dividing PolynomialsLearn more about Synthetic Division here:https://brainly.com/question/28824872#SPJ3A ferry traveled \dfrac16 6 1 start fraction, 1, divided by, 6, end fraction of the distance between two ports in \dfrac37 7 3 start fraction, 3, divided by, 7, end fraction hour. The ferry travels at a constant rate. At this rate, what fraction of the distance between the two ports can the ferry travel in one hour?
Answer:
The ferry can travel [tex]\frac{7}{18}[/tex] of the distance between the two ports in one hour.
Step-by-step explanation:
A ferry traveled [tex]\frac{1}{6}[/tex] of the distance between two ports in [tex]\frac{3}{7}[/tex] hour.
Suppose, the ferry traveled [tex]x[/tex] of the distance between the two ports in one hour.
So, the equation according to the ratio of "distance" to "time" will be.......
[tex]\frac{\frac{1}{6}}{\frac{3}{7}} =\frac{x}{1} \\ \\ x=\frac{1}{6}\times \frac{7}{3}= \frac{7}{18}[/tex]
Thus, the ferry can travel [tex]\frac{7}{18}[/tex] of the distance between the two ports in one hour.
30 POINTS FOR WHO EVER GIVE ME THE RIGHT ANSWER
Answer:
False.
Step-by-step explanation:
[tex] \dfrac{1}{x^{-3}} = x^3 [/tex]
[tex] x^3 [/tex] is a simplified expression. The given expression is not simplified.
Yolanda says 105 is the same as 50 because 10x5 equals 50. What was yolanda's mistake
Answer: Yolanda's mistake is that she is assuming 105 is same as 10 x 5 .
Explanation:Here 105 represents a three digit number where 1 is at hundreds place,0 is at tens place and 5 is at once place and it can be written as the product of its factors 5 and 21 i.e 105=5×21 =21+21+21+21+21+21=105(by adding once place and tens place), where as 10×5 represents 5 times number 10 i.e.10+10+10+10+10=50(by adding once place and tens place)
So ,assuming 105 is same as 10 x 5 is her mistake.
What is the base 5 representation of the number 219?
The easiest way to do this is to start with the power of 5 that is just under 219.
125 would be the closest power of 5
Now subtract 125 from 219 = 94
=====================
The highest power of 5 closest to 94 is 25. You have to multiply 25 * 3 to get a number close enough to 94 that leaves a remainder under 25
94 - 75 = 19
=======================
19 - 3 * 5 = 4 Same argument as above.
Answer
219_10 = 1334_5
Answer:
1334/5
Step-by-step explanation:
A standard brick is 3.625 inches wide, 2.25 inches high, and 7.625 inches long. How many bricks could be in a pallet of bricks that measures 4 feet on all sides? (One cubic foot is 12×12×12 cubic inches.)
A. 1,757
B. 1,974
C. 1,709
D. 1,778
Answer: Option D. 1,778
Solution:
Standard brick:
Width: w=3.625 in
Height: h=2.25 in
Length: l=7.625 in
Volumen of one standard brick: v
v=w*h*l
v=(3.625 in)*(2.25 in)*(7.625 in)
v=62.19140625 in^3
Pallet of bricks:
Side: s=4 feet
s=(4 feet)*(12 in / 1 feet)→s=48 in
Volume of a pallet of bricks: V=s^3
V=(48 in)^3
V=110,592 in^3
Number of bricks could be in a pallet: n
n=V/v
n=(110,592 in^3) / (62.19140625 in^3)
n=1,778.252119
n=1,778
Can someone confirm if this is the answer or not?
question help brucebruce is taking a taxi to the airport. The taxi charges an initial fee of $44 and then $22 per mile. Write an algebraic expression for the cost of a taxi ride of m miles. Then evaluate the expression to find how much aa 55-mile taxi ride would cost brucebruce. Write an algebraic expression for the cost of a taxi ride of m miles. Choose the correct answer below. A. 44mminus−22m b. 22plus+44m c. 44plus+22m your answer is correct.D. 22m upper aa 55-mile taxi ride would cost brucebruce $ nothing.
Answer:
y = 44+22m
Step-by-step explanation:
Given that a taxi has a minimum charge of 44 dollar upto 1 mile and adds 22 for every additional 1 mile.
If a person travels 1 miles his charges are 44 dollar
If he travels >1 miles charges are 4 dollar +22(extra miles )
Let y be the charges and m be the no of miles.
Then the equation for y in terms of m would be
y =44+22m
is the correct answer.
Options are
A. 110
B. 410
C. 502
D. 775
Answer:
502
Step-by-step explanation:
4560/x=100/11
(4560/x)*x=(100/11)*x - we multiply both sides of the equation by x
4560=9.09*x - we divide both sides of the equation by (9.09) to get x
4560/9.09=x
501.6=x
x=501.6
why hello there
Your answer is c i was gonna give a better answer but the other dude did it
How Do you round 4,398,202 to nearest 100
Answer: 4,398,200
Step-by-step explanation:
4, 398, 202
the underlined 2 is in the 100's place. look at the number to the right of it. If that number is greater than or equal to 5, then the 2 is rounded up. Otherwise, the 2 remains the same.
The number to the right of the underlined 2 is 0, so the 2 remains the same. All digits to the right will become 0s.
Suppose the population of a certain city is 5891 thousand. It is expected to decrease to 5178 thousand in 50 years. Find the percent decrease. The percent decrease is approximately
We are given
initial population is 5891
so, [tex]P_i=5891[/tex]
Population after 50 years is 5178
so, [tex]P_f=5178[/tex]
now, we can find percent error
so, we can use formula
[tex]error=\frac{P_i-P_f}{P_i}\times 100[/tex]
now, we can plug values
[tex]error=\frac{5891-5178}{5891}\times 100[/tex]
now, we can simplify it
so, we get
The percent decrease is 12.1032%.........Answer
First: work out the difference (decrease) between the two numbers you are comparing by the formula
Decrease = Original Number - New Number
In your case,
[tex]\text{Decrease}=5891-5178=713.[/tex]
Second: divide the decrease by the original number and multiply the answer by 100.
% Decrease = Decrease ÷ Original Number × 100
In your case,
[tex]\%\text{Decrease}=\dfrac{713}{5891}\cdot 100\%=12.1\%.[/tex]
Answer: The percent decrease is approximately 12.1%.
Mr and mrs Wilson hosted their daughters wedding they paid 575
Linda spent 3/4 of her saving on furniture and the rest on a tv.If the tv cost her $200,what were her original savings .
Let x represent the amount of savings
[tex]\frac{3}{4}[/tex] of savings minus tv equals zero
[tex]\frac{3}{4}x[/tex] - 200 = 0
[tex]\frac{3}{4}x[/tex] = 200
3x = 4(200)
[tex]x = \frac{4(200)}{3}[/tex]
x = 266.67
Answer: $266.67
Please help answer ASAP
First of all, we need to do the expression in parenthesis first.
(4% - 2.25%) = 1.75%
Now, we convert the percent into an integer.
1.75% = 0.0175
Then, we multiply 44.5 by 0.0175
and we get 0.77875.
We have to round the number to the nearest cent.
0.77875 is roughly 0.78
So the answer is $0.78.
Calculate The Mean from the data given below: x f 0 1 1 13 2 20 3 40 4 40 5 13 6 7
Answer: 12.6
Step-by-step explanation:
(0 + 11 + 13 + 2 + 20 + 3 + 40 + 4 + 40 + 5 + 13 + 6 + 7)/13
= 164/13
= 12.6
Sara spent twice as much at the department store if Sara spent 88 how much did Jenni spend
Answer:
Jenni spent 44
Step-by-step explanation:
Let the amount spent by Jenni be x
Let the amount spent by Sara be 2x which also equals 88
2x = 88
x = ?
Cross multiplying gives:
x/2x × 88 = 44
Jenni therefore spent 44
mary pitches a ball. the initial height is 4 ft and velocity 55 ft per second. when will the ball hit the ground?
Answer:
t = 3.5 sec
Step-by-step explanation:
The equation that represents the position of the ball as a function of time is the following:
[tex]h(t) =P_{o} + V_{o}t+\frac{1}{2}2at^2[/tex]
Where:
[tex]P_{o}[/tex] = Initial position of the ball (4 feet tall)
[tex]V_{0}[/tex] = Initial speed of the ball (55feet / s)
a = acceleration (9.8 [tex]\frac{m}{s^2}[/tex], or in this case 32.16[tex]\frac{ft}{s^2}[/tex])
t = time in seconds
Then we want to know how long it takes to get to the ground, for this we equal h (t) = 0 and clear t.
So:
[tex]0 = 4 + 55t -16.08t ^ 2[/tex]
Solving the second degree equation we have:
[tex]\frac{-b+\sqrt{b ^ 2-4ac}}{2a} \\ \frac{-b-\sqrt{b ^ 2-4ac}}{2a}[/tex]
[tex]\frac{-55+\sqrt{55^2-4 (-16.08) 4}}{2 (-16.08)}= -0.0712\\\frac{-55-\sqrt{55^2-4 (-16.08) 4}}{2 (-16.08)} = 3.492[/tex]
t = -0.071 sec
t = 3.5 sec
We must take the positive solution.
So:
t = 3.5 sec
The domain of y = 1/x - 10 is all real numbers except x = 10
TRUE or FALSE?
TRUE
because if we substitute the value of x = 10 to the equation, then we have quotient with divide by zero!
[tex]y=\dfrac{1}{x-10}\to f(x)=\dfrac{1}{x-10}\\\\f(10)=\dfrac{1}{10-10}=\dfrac{1}{0}\ !!!![/tex]
The volume of the cube below is 1/8cm^2 . What is the value of x?
We are given
edge of cube =x
we know that formula for volume of cube
[tex]V=x^3[/tex]
we are given
[tex]V=\frac{1}{8} cm^3[/tex]
we can plug value
[tex]x^3=\frac{1}{8} cm^3[/tex]
now, we can solve for x
[tex]\sqrt[3]{x^3} =\sqrt[3]{\frac{1}{8} cm^3 }[/tex]
[tex]x=\frac{1}{2} cm[/tex]............Answer
Answer:
1/2 cm
Step-by-step explanation:
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1) Given
2) m∠1 + m∠2 = 90°
3) BD bisects ∠ADC
4) definition of angle bisector
5) definition of congruency
6) m∠1 + m∠3 = 90°
7) ∠1 is complementary to ∠3 (7) definition of complementary
If there is a drop down box, and my answer is not an option, type in the options in the comment box and I will let you know which theorems (or definitions) are the same as my answer.
how did you gett such a hard question (yes im asking in an awnser box)
Math help please? giving 100 points. This is my last question i have and i'm just wanting some explanations on this since i was gone for a week during school. I came back and this whole part is quite confusing and i would be way too thankful for some help!
3. AB≅CE
4.CE≅AC
5.transitive property of congruence
6. definition of a isosceles triangle
Mr ramos thumb measures 4 cm.. Express the length in meters
in a certain chemical, the ratio of zinc to copper is 3 to 13. a jar of the chemical contains 403 grams of copper. how many grams of zinc does it contain?
HELP MEHH PLZZZ!!!!!!!!!!!!!
Answer: 93 grams Zinc
Step-by-step explanation:
3 Zinc : 13 Copper
x 31 x 31
93 Zinc, 403 Copper
or
set up a proportion, cross multiply, and solve for the variable:
[tex]\frac{Zinc}{Copper}: \frac{3}{13} = \frac{x}{403}[/tex]
3(403) = 13(x)
[tex]\frac{3(403)}{13} = x[/tex]
3(31) = x
93 = x
The amount of zinc in the chemical is determined by using the given ratio of zinc to copper and applying it to the given amount of copper. Step-by-step calculations reveal the quantity of zinc to be 93 grams.
Explanation:The question is asking for the amount of zinc in a chemical where the ratio of zinc to copper is 3:13. To find out this, we need to solve for zinc in terms of the given amount of copper.
First, understand that the ratio means for every 3 grams of zinc, there are 13 grams of copper. Now, simply set up a proportion where 3/13 = x/403. Here x is the amount of zinc in grams we are trying to find. 3/13 is the zinc to copper ratio and 403 is the known amount of copper in grams.
When you cross multiply and solve for x, you'll find that x = 3 * 403 / 13 = 93 grams. This means, if there are 403 grams of copper, then there must be "93 grams of zinc".
Learn more about Ratios here:https://brainly.com/question/32531170
#SPJ3
The temperature decreased overnight by 15.2°C to a temperature of –12.8°C. Suppose t represents the temperature before it decreased.
Which equation can be used to represent this situation?
A.
t – 15.2 = –12.8
B.
t + 12.8 = –15.2
C.
t – 12.8 = 15.2
D.
t – (–15.2) = –12.8
Answer:
Option a
Step-by-step explanation:
Given that temperature originally was t.
It was decreasing continuously overnight.
finally the temperature reading was -12.8 degree C
Given that it decreased by 15.2 degree C
This means original temperature -15.2 = new temperature -12.8
i.e. t-15.2 = -12.8 is the correct equation.
Option a is right.
Verify:
Solve to get t = 15.2-12.8 = 2.4
Hence when 2.4 decreases by 15.2 we get new temperature
= 2.4-15.2 = -12.8
Apply the distributive propertyto create an equivalent expression. 1/2(6e-3f-3/4)
3e - [tex]\frac{3}{2}[/tex] f - [tex]\frac{3}{8}[/tex]
multiply each of the terms in the parenthesis by [tex]\frac{1}{2}[/tex]
[tex]\frac{1}{2}[/tex] (6e - 3f - [tex]\frac{3}{4}[/tex] )
= 3e - [tex]\frac{3}{2}[/tex] f - [tex]\frac{3}{8}[/tex]
Answer:
[tex]3e-\frac{3}{2}f-\frac{3}{8}[/tex]
Step-by-step explanation:
The given expression is
[tex]\frac{1}{2}(6e-3f-\frac{3}{4})[/tex]
To find an equivalent expression, we need to use the distributive property, that is, we have to multiply [tex]\frac{1}{2}[/tex] with each term that's inside the parenthesis.
[tex]\frac{1}{2}(6e-3f-\frac{3}{4})\\\frac{6e}{2}-\frac{3f}{2}-\frac{3}{2(4)}\\ 3e-\frac{3}{2}f-\frac{3}{8}[/tex]
Therefore, the equivalent expression is
[tex]3e-\frac{3}{2}f-\frac{3}{8}[/tex]
Remember that when we multiply fractions, we have to do it in a linear way, that is, numerators multiply each other, and denominators multiply each other. That means you CAN'T multiply a numerator with a denominator.
Solve. T + 23 > 1 t > 24 t > –22 t < 24 t < –22
t + 23 > 1 subtract 23 from both sides
t + 23 - 23 > 1 - 23
t > -22