Intermediate Algebra

OPENSTAX

$Math Studyset 91影视 Explanations$ Math

OER 2017 Edition 路 1346 pages

ISBN: 9780998625720

Chapter 1: Q. 1.70 (page 58)

Add or subtract: 鈸� 鈭�5.123 鈭� 18.47 鈸�37.42 鈭� 50

Short Answer

Expert verified

The result obtained is

鈸� 鈭�23.593

鈸� 鈭�12.58

Step by step solution

Step 1. Given information

The given numbers are

鈸� 鈭�4.8 鈭� 11.69

鈸� 9.58 鈭� 10

We have to add or subtract as applicable.

To add or subtract decimals, we line up the decimal points. By lining up the decimal points this way, we can add or subtract the corresponding place values. We then add or subtract the numbers as if they were whole numbers and then place the decimal point in the sum.

Step 2. Solve for part (a)

$\begin{array}{l} 鈬� 鈭� 5.123 鈭� 18.47 = 鈭� (5.123 + 18.47) \\ Now, \\ 05.123 \\ \underset{炉}{+ 18.470} \\ \underset{炉}{33.593} \\ Thus, \\ 鈭� 5.123 鈭� 18.47 = 鈭� 33.593 \end{array}$

Step 3. Solve for part (b)

$\begin{array}{l} 鈬� 37.42 鈭� 50 \\ Thedifferencewillbenegative.Tosubtract,wesubtract37.42from50 \\ 50.00 \\ \underset{炉}{鈭� 37.42} \\ \underset{炉}{12.58} \\ Thus, \\ 37.42 鈭� 50 = 鈭� 12.58 \end{array}$

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91影视

Add or subtract: 鈸� 鈭�5.123 鈭� 18.47 鈸�37.42 鈭� 50

Short Answer

Step by step solution

Step 1. Given information

Step 2. Solve for part (a)

Step 3. Solve for part (b)

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