$ per min is a rate. you multiple by minutes to get dollars.

A = 10x
B = 5x + 20

set them equal to find minutes, x.

10x = 5x + 20
10x - 5x = 20
5x = 20

x = 4

4 0

3 years ago

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A 14 foot ladder is leaning against a building. The ladder makes a 45 degree angle with the building. How far up the building do

3241004551 [841]

Sin 45 = X / 14
X = 14 * sin45
X = 7√2≈9.89949
Thus ladder will reach to ≈ 9.9 (rouded-up) foot height in the building

5 0

3 years ago

Can you solve : 7x - 4 = 2

Zolol [24]

7x-4=2
add 4 to both sides
7x=2+4
7x=6
divide 7 to both sides
x=6/7

8 0

3 years ago

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What is the answer to 5y-3/5= 4/5

kykrilka [37]

Y = 7/25 is the answer.

3 0

3 years ago

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