Page 99 - Basic College Mathematics with Early Integers

76 C HAPTE R 1 I THE WHOLE NUMBERS

2. TRANSLATE.

In words: Snake River is 732 miles longer than the Hudson River

T T T T T
Translate: Snake River = 732 + 306
3. SOLVE: Let’s see if our answer is reasonable by also estimating. We will
estimate each addend to the nearest hundred.

732 rounds to 700
+306 rounds to 300
1038 exact 1000 estimate

4. INTERPRET. Check your work. The answer is reasonable since 1038 is close
to our estimated answer of 1000. State your conclusion: The Snake River is
1038 miles long.

Work Practice 1

PRACTICE 2 Example 2 Filling a Shipping Order
Four friends bought a lottery How many cases can be filled with 9900 cans of jalapeños if each case holds
ticket and won $65,000. If each 48 cans? How many cans will be left over? Will there be enough cases to fill an or-
person is to receive the same der for 200 cases?
amount of money, how much
does each person receive? Solution:
1. UNDERSTAND. Read and reread the problem. Draw a picture to help visual-
ize the situation.

48 cans 48 cans 48 cans

9900 cans

Since each case holds 48 cans, we want to know how many 48s there are in
9900.We find this by dividing.
2. TRANSLATE.

In words: Number of cases is 9900 divided by 48
T T T T T
Translate: Number of cases = 9900 , 48
3. SOLVE: Let’s estimate a reasonable solution before we actually divide. Since
9900 rounded to the nearest thousand is 10,000 and 48 rounded to the nearest
ten is 50, 10,000 , 50 = 200. Now find the exact quotient.
206 R 12
489900
-96 Copyright 2012 Pearson Education, Inc.

300
Answer -288
2. $16,250 12