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Chapter 2: Q10. (page 149)

Record your answers on the answer sheet provided by your teacher or on a sheet of paper.

Solve the proportion x18=721.

Short Answer

Expert verified

The value of x is 6

Step by step solution

01

Step 1. Given information.

A proportionx18=721.

02

Step 2. Concept used.

We use the cross-product rule.

Asab=cd鈬�ad=bc wherea,b are two numbers.

03

Step 3. To find the value of x.

Solve the given proportion

x18=721鈬�21x=7脳18鈬�x=7脳1821鈬�x=183鈬�x=6

Hence, the value of x is 6.

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Most popular questions from this chapter

Translate the following equation into a sentence:

6+9k+5j=54

Solve each equation. Check your solution.

n+1鈭�2=15

Translate the following equation into a sentence:

4m=32

Solve 45x+7=315x鈭�3

  1. 鈭�1623
  2. 鈭�1449
  3. 鈭�623
  4. -10

Translate each sentence into an equation.

Thirty-two divided by y is equal to the product of three and y minus four.
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