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MAXImum [283]
3 years ago
13

If a storm window has an area of 448 square inches, what are the dimensions if the window is 12 inches higher than it is wide (w

x h)?
Mathematics
1 answer:
pantera1 [17]3 years ago
4 0
Let width = w  then we have the equation:-

w(w + 12) = 448

w^2 + 12w - 448 = 0

(w - 16)(w + 28) = 0

w = 16  

Answer: the dimensions of the window are width 16 by height 28 inches

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56"

Step-by-step explanation:

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Which relationships describe the angle pair x° and 71º?
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3 years ago
A saleswoman earns 3% commission on all the merchandise that she sells. Last month she sold $3000 worth of merchandise. How much
Lynna [10]

She earned $90 commission last month.

Step-by-step explanation:

Given,

Commission rate of saleswoman = 3%

Sold worth of merchandise = $3000

Commission amount = 3% of sold worth

Commission\ amount=\frac{3}{100}*3000\\\\Commission\ amount=\frac{9000}{100}\\\\Commission\ amount=\$90

She earned $90 commission last month.

Keywords: percentage, division

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4 0
3 years ago
The difference between two positive number is 9. if the smaller is added to the square of the larger. the result is `147. find t
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3 0
3 years ago
At a fabric store, fabrics are sold by the yard. A dressmaker spent $36.35 on 4.25 yards of silk and cotton fabrics for a dress.
goldfiish [28.3K]

Answer:

Step-by-step explanation:

The yards of silk bought is  1.49 yards and the yard of cotton bought is 2.76 yards.

The two equations are known as simultaneous equation. They would be solved using elimination method.

x + y  = 4.25 equation 1

16.90x + 4y = 36.25 equation 2

where:

x = yards of silk bought

y = yards of cotton bought

In order to determine the value of x, multiply equation 1 by 4.

4x + 4y = 17 equation 3

Subtract equation 3 from 2

19.25 = 12.90x

Divide both sides of the equation by 12.90

x = 1.49 yards

In order to determine the value of y, substitute for x in equation 1

1.49 + y = 4.25

y = 4.25 - 1.49

y = 2.76 yards

4 0
2 years ago
Read 2 more answers
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