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Solve for each proportion

Solve for each proportion-example-1
User Jimasp
by
8.7k points

2 Answers

3 votes

Answer:

  • 7) r = 20/7
  • 8) x = 27/2

Explanation:

7) r/2 = 10/7, value of r?

→ r/2 = 10/7

→ r = (10/7) × 2

→ r = (10 × 2)/7

→ [ r = 20/7 ]

Hence, value of r is 20/7.

8) 9/4 = x/6, value of x?

→ 9/4 = x/6

→ x/6 = 9/4

→ x = (9/4) × 6

→ x = (9 × 6)/4

→ x = 54/4

→ [ x = 27/2 ]

Hence, value of x is 27/2.

User Aaront
by
8.6k points
5 votes

Answer:

r = 20/7

x = 13.5

Explanation:

Hello!

7)

Solve for r by cross-multiplying:


  • \frac r2 = \frac {10}7

  • r*7 = 10 * 2

  • 7r = 20

  • r = \frac{20}7

The value of r is 20/7.

8)

Solve for x by cross-multipying:


  • \frac 94 = \frac x6

  • 9*6 = 4*x

  • 4x = 54

  • x = 13 \frac12

The value of x is 13.5.

User Online User
by
8.5k points

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