Answer:
x = 15
Step-by-step explanation:
Create a proportional relationship to solve for x
3/2 = x/10
Cross multiply
2x = 30
Divide both sides by 2
10/(10 + 2) = x/(x + 3) Combine left denominator
10/12 = x/(x + 3) Cross multiply
10(x + 3) = 12*x Remove the brackets on the left
10x + 30 = 12x Subtract 10x from both sides
<u>-10x -10x</u>
30 = 2x Divide by 2
2x/2 = 30/2
d
3/5 and 250 the number of girls is 150
3t>-30
t>-10
..........
