Question

Need this turned in by tonight. Solving for x. My brain is fried, I have been doing math for the last 4 hour.Help!!!!!

Answer 1

• 18. x = 24.5
• 19. x = 4
• 21. x = 10

Explanation:

Corresponding sides have same ratio

Q18

• 7/6 = x / (27- 6)
• 6x = 7*21
• x = 147/6
• x = 24.5

Q19

• (x + 5)/15 = (5x + 1)/35
• (x + 5)/3 = (5x + 1)/7
• 7(x + 5) = 3(5x + 1)
• 7x + 35 = 15x + 3
• 15x - 7x = 35 - 3
• 8x = 32
• x = 4

Q21

• (x + 6)/24 = (2x - 2)/27
• (x + 6)/8 = (2x - 2)/9
• 8(2x - 2) = 9(x + 6)
• 16x - 16 = 9x + 54
• 16x - 9x = 54 + 16
• 7x = 70
• x = 10