All categories

3 years ago

The length of a rectangle is 7 more than its width. The area of the rectangle is 120. Solve for the length and the width.

Mathematics

2 answers:

klio [65]3 years ago

8 0

Length times width times height

hichkok12 [17]3 years ago

5 0

L = w + 7
W = w
A = L * W
120 = w(w+7)
120 = w^2 + 7w
Subtract 120 from both sides.
w^2 + 7w - 120 = 0
Factor
(w + 15)(w - 8) = 0
Set each factor equal to zero.
w = -15, w= 8
Cannot be -15 so w = 8
Length = 15
Width = 8

You might be interested in

What is 7/8 x c for c=8

Mademuasel [1]

Answer:
7

Explanation:
We are given the equation:
 $\frac{7}{8}$ * c

We want to get the value of the equation at c = 8.
Therefore, all we have to do is substitute c in the equation with 8 and solve as follows:
 $\frac{7}{8}$ * 8

= $\frac{7*8}{8}$

The 8 in the numerator will be cancelled out with the 8 in the denominator leaving us with only the 7 as a solution

Hope this helps :)

6 0

2 years ago

Read 2 more answers

Pls help I need to know how many boxes can fit in this box

morpeh [17]

9 boxes can fit into the box

7 0

2 years ago

(please help last question) which of the following statements are true (brainliest)

puteri [66]

Answer:

Both have a negative slope.

Step-by-step explanation:

Because:

The equation has a negative slope (-2).

The table has a negative slope (-0.5):

(0,3). (2,2)

(X1, y1). (X2, y2)

M = y2-y1

_____

X2- x1

M = 2 - 3 -1

_____ = ___

2-0 2

Hope this helps! Have a great day!

7 0

2 years ago

Two lines that are skew can be parallel

sveticcg [70]

Answer: skew lines are two lines that do not intersect and are not parallel

Step-by-step explanation:

3 0

2 years ago

In Mr. Cannon's class, 44% scored an 80 or above on the semester exam. Which of the following is NOT equivalent to 44% Question

tigry1 [53]

Answer:

11/20

Step-by-step explanation:

22/50 is equivalent because if you multiply 50 by 2 to get 100, then multiply 22 by 2, you get 44 out of 100 (44). For 11/20 if you multiply 20 by 5 to get 100, then multiply 11 by 5, you get 55 out of 100 (55). Do the same thing for all the other ones. I hope this helps! Please mark me brainliest thanks!

7 0

3 years ago