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den301095 [7]
3 years ago
11

A rectangular rug has an area of 38.5 square feet. If the rug is 5 feet wide, what is the length of the rug?

Mathematics
2 answers:
algol133 years ago
7 0

Answer:

7.7 square feet

Step-by-step explanation:

38.5 divided by 5, equals 7.7.

Hope this helps

Tju [1.3M]3 years ago
3 0

Answer:

10

Step-by-step explanation:

80 = l(l - 2) = l2 - 2l. Solve the quadratic to find solutions l = 10 and l = -8. You can't have a negative side, so the length of the rectangle must be 10.

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A swimming pool has a diameter of 32 feet.
Setler79 [48]
Area = 256*3.14=804feet^2
4 0
3 years ago
When asked to write a point slope equation for a line passing through the points (-4,-7) and (3,2) a student wrote y-2=-9/7(x-3)
AleksAgata [21]
First let's find the slope
Slope formula: 
\frac{y_2-y_1}{x_2-x_1} =slope
Given the two coordinates: 
(-4,-7) (3,2) 
 x1,y1  x2,y2

Plug these numbers into the formula
\frac{2-(-7)}{3-(-4)} = \frac{9}{7}
In this case the mistake that was made was that the student wrote the slope negative instead of positive
Final answer: 
<span>y-2=9/7(x-3)</span>
8 0
3 years ago
I need help 3/2x-5=7
Leviafan [203]

The answer to that is x=8

5 0
3 years ago
Serena wants to solve the following system of equations in the most efficient way.
Marianna [84]

Answer:

Serina should have solved for x in the second equation because it has a coefficient of 1.

Step-by-step explanation:

we have

2x+3y=18 ----> equation A

x+7y=31 ---> equation B

we know that

To solve the system of equations in the most efficient way, solve for x equation B and then substitute the value of x in equation A

so

x=31-7y ----> equation C

substitute equation C in equation A

2(31-7y)+3y=18

solve for y

62-14y+3y=18\\11y=62-18\\11y=44\\y=4

Find the  value of x

substitute the value of y in the equation C

x=31-7(4)=3

The solution is (3,4)

therefore

Serina should have solved for x in the second equation because it has a coefficient of 1.

3 0
3 years ago
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How smart are you? A lady walk in the store and steals $100 bill from the register without the owners knowledge. She comes back
irinina [24]
-100-70+100-30=-100

I included the value of the merchandise that she "purchased", so the owner lost $100 in total value.
7 0
3 years ago
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