A. Section 6.2
Use the appropriate form of the percentage formula (π = π π΅, π΅ =
π
π
ππ π
=
π
π΅
). Round division to the
nearest hundredth if necessary.
40% of 30 is what number?
B. Section 6.3
If 78 is increased by 40%, what is the new amount?
C. Section 6.2
Identify the rate, base, and portion.
48% of 12 is what number?
D. Section 6.3
A number increased from 5,286 to 7,595. Find the amount of increase.
E. Section 6.2
Identify the rate, base, and portion.
15% of what number is 80?
F. Section 6.3
If the spending power of NAFTA consumers increased to $7.5 trillion and the NAFTA share changed to
17.5% of all combined spending power of NAFTA and the European Union, what is the increased
spending power of the EU? Round to the nearest tenth of a trillion dollars.
G. Section 6.1
Write the decimal as a percent.
0.39
H. Section 6.2
Use the appropriate form of the percentage formula (π = π
π΅, π΅ =
π
π
ππ π
=
π
π΅
). Round division to the
nearest hundredth if necessary.
Find π if π = 25% and π΅ = 300
MAT105 β Quantitative Methods
Unit 4 DB Assignment
I. Section 6.1
Write the decimal as a percent.
2.92
J. Section 6.3
A number increased from 224 to 336. Find the percent of increase.
K. Section 6.1
Write the decimal as a percent.
Data collected from those who reported their credit card debt showed that Arkansas had the lowest
average annual percentage rate (APR) on its credit cards at 0.0721. Represent this as a percent.
L. Section 6.2
Use the appropriate form of the percentage formula (π = π
π΅, π΅ =
π
π
ππ π
=
π
π΅
). Round division to the
nearest hundredth if necessary.
What percent of 16 is 4?
M. Section 6.1
Write the fraction and mixed number as a percent.
3
2
5
N. Section 6.3
A number is decreased by 40% to 525. What is the original amount?
O. Section 6.1
Write the fraction and mixed number as a percent.
4
5
P. Section 6.2
Use the appropriate form of the percentage formula (π = π
π΅, π΅ =
π
π
ππ π
=
π
π΅
). Round division to the
nearest hundredth if necessary.
325 is what percent of 260?
Q. Section 6.1
Write the percent as a decimal. Round to the nearest thousandth if the division does not terminate.
150%
R. Section 6.3
The cost of a pound of nails increased from $2.36 to $2.53. What is the percent of increase to the
nearest whole-number percent?
S. Section 6.1
Write the decimal as a percent.
0.639
T. Section 6.3
Bret Davis is getting a 4.5% raise. His current salary is $38,950. How much will his raise be?
U. Section 6.1
Write the decimal as a percent.
One study reported that of all Americans, 0.86 gambled legally at least some of the time. What percent
of Americans gamble?
V. Section 6.2
An ice cream truck began its daily route with 95 gallons of ice cream. The truck driver sold 78% of the
ice cream. How many whole gallons of ice cream were sold?
W. Section 6.1
Write the fraction and mixed number as a percent.
7
5
X. Section 6.3
DeMarco Jones makes $13.95 per hour but is getting a 5.5% increase. What is his new wage per hour to
the nearest cent?
Y. Section 6.1
Write the percent as a decimal. Round to the nearest thousandth if the division does not terminate.
45%
Z. Section 6.2
A stockholder sold her shares and made a profit of $1,466. If this is a profit of 23%, how much were the
shares worth when she originally purchased them?
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