Answer Key: Self-Test C-1.1.5
- Express the following percentages as fractions and as decimals:
|
Percentage |
Fraction |
Decimal |
|
|
a. |
70% |
[latex]\frac{7}{10}[/latex] |
0.7 |
|
b. |
58% |
[latex]\frac{29}{50}[/latex] |
0.58 |
|
c. |
1.0% |
[latex]\frac{1}{100}[/latex] |
0.01 |
|
d. |
0.01% |
[latex]\frac{1}{10,000}[/latex] |
0.0001 |
|
e. |
87% |
[latex]\frac{87}{100}[/latex] |
0.87 |
- Express the following fractions as decimals and as percentages:
|
Fraction |
Decimal |
Percentage |
|
|
a. |
[latex]\frac{3}{8}[/latex] |
0.375 |
37.5% |
|
b. |
[latex]\frac{3}{16}[/latex] |
0.1875 |
18.75% |
|
c. |
[latex]\frac{5}{32}[/latex] |
0.15625 |
15.625% |
|
d. |
[latex]4\frac{11}{16}[/latex] |
4.6875 |
468.75% |
|
e. |
[latex]\frac{2}{3}[/latex] |
0.667 |
66.7% |
- Express the following decimals as fractions and as percentages:
|
Decimal |
Fraction |
Percentage |
|
|
a. |
0.65 |
[latex]\frac{13}{20}[/latex] |
65% |
|
b. |
0.20 |
[latex]\frac{1}{5}[/latex] |
20% |
|
c. |
1.333 |
[latex]1\frac{1}{3}[/latex] |
133% |
|
d. |
1.625 |
[latex]1\frac{5}{8}[/latex] |
162.5% |
|
e. |
2.790 |
[latex]2\frac{79}{100}[/latex] |
279% |
- What is 76% of 2,189?
- 1,663.64
- What is 64% of 7,700?
- 4,928
- What is 67.5% more than 48?
- 80.4
- What is 15% less than 223?
- 189.55
- What % of 1,900 is 133?
- 7%
- What % of 7,600 is 6,764?
- 89%
- Which is larger? Use < , > or = for each pair
46% of 86 > 43% of 26
6% of 55 < 40% of 62
30% of 84 > 64% of 10
34% of 97 > 46% of 36
68% of 72 > 41% of 45
46% of 20 < 29% of 49
86% of 40 > 57% of 55
49% of 93 > 50% of 77
- What would be your wage if a journeyman plumber earns $37.50/hr and you earn 55% of what they do?
- $20.63
- A [latex]1 \frac{1}{2}\text{"}[/latex] P-trap at the wholesaler now sells for $9.75, and a price increase of 8% will take effect next week. What will the same fitting cost after the increase?
- $10.53
- A gas-fired furnace is 93% efficient. If the appliance input is 78,000 BTUH, what is the output?
- 72,540 BTUH
