Ok well first let's add his two earnings. 21 + 34= 55.
Now let's multiply that by 9
55 x 9 = 495
So he will earn 495 dollars in 9 days.
Hope that helped

3 0

3 years ago

2/5x = -3/15 + 1/x x=0 x=15 x=5 x=3

Taya2010 [7]

Answer:

x = 3

Step-by-step explanation:

$\dfrac{2}{5x}=-\dfrac{3}{15}+\dfrac{1}{x}\\\\\dfrac{1}{5}=\dfrac{5-2}{5x}\qquad\text{add $\frac{3}{15}-\frac{2}{5x}$}\\\\x=3\qquad\text{multiply by 5x}$

7 0

4 years ago

Solve each equation. 2y=7(y−2)+4 y = 4x=6−2(2−x) x =

aliya0001 [1]

Answer:

y=2 and x=1

Step-by-step explanation:

2y=7y-14+4

2y-7y=-14+4

-5y=-10/-5

y=2

4x=6-4+2x

4x-2x=6-4

2x=2/2

x=1

5 0

3 years ago