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Chapter 1: Q1. (page 15)

Find the value of each expression.

18-12÷3

Short Answer

Expert verified

Expression 18-12÷3 results into 14

Step by step solution

01

- Order for simplification 

To evaluate any expression involving more than one operation, follow the below order of operations:

  • First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
  • Evaluate the exponents.
  • Perform Multiplication and division from left to right.
  • Perform addition and subtraction from left to right.
02

- Divide 12 by 3

To evaluate given expression, first divide the terms as shown below

18-12÷3=18-4

03

- Subtract 4 from 18

Not, to simplify further subtract the numbers from left to right to get,

18-4=14

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Most popular questions from this chapter

Determine which expression below represents the amount of change someone would receive from a \(50bill if they purchased 2 children’s ticket at \)4.25each and 3 adult ticket at $7each at a movie theatre. Explain.

a.50−2×4.25+3×7b.50−2×4.25+3×7c.50−2×4.25+3×7d.50−2×4.25+3×7

Evaluate each expression

61. 100

In 1950, the average price of a car was about \(2000. This may sound inexpensive, but the average income in 1950 was much less than it is now. To compare dollar amounts over time, use the formula V=ASC, where A is the old dollar amount, S is the starting year’s Consumer price index (CPI), C is the converting year’s CPI, and V is the current value of the old dollar amount. Buying a car for \)2000in 1950 was like buying a car for how much money in 2000?

Year

Average CPI

1950

42.1

1960

29.6

1970

38.8

1980

82.4

1990

130.7

2000

174.0

Find the value of each expression

6+72-1

Find the value of each expression

12+10÷11-32
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