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Chapter 7: Q51. (page 348)

Evaluate the expression when k=20.

80-k%of30

Short Answer

Expert verified

The solution of expression 80-k%of30 is 18.

Step by step solution

01

Step 1. Given Information.

It is given that k=20.

02

Step 2. Calculation.

Substitute k

80−20%of3060%of30subtract

Therefore, the expression is

60%of30=60100⋅30writepercentageasafraction=0.60⋅30multiply=18multiply

03

Step 3. Conclusion.

The percentage 60%of30 is 18.

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Most popular questions from this chapter

Use a proportion to answer the question. What number is 18% of 50?

An 18th century Indian version of chess uses a 10 square by 10 square board. On the board shown, the dots represent your opponent’s chess pieces at the start of the game.

  1. Copy the board shown. Mark X’s on your side of the board to represent your chess pieces in an arrangement that matches your opponent’s.
  2. What percent of the squares are occupied at the start of the game?
  3. During one game, 75% of the pieces are still on the board. Of the pieces, 14 belong to you. How many pieces belong to your opponent? Explain.

A computer randomly generates an integer from 1 to 10. Find the probability of the given event. Write your answer as a percent.

Pevennumber

Find the percent of the number.

75% of 80

Write the percent as a fraction in simplest form, or write the fraction as a percent.

98%
See all solutions

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