Answer:
Part 1) Option C. 57.1%
Part 2) Option B. 70.9%
Part 3) Option C. 66 2/3 %
Part 4) Option A. About 16
Part 5) Option A. About $12
Part 6) Option B. About $9
Part 7) Option B. x/50=70/100
Part 8) Option B. 25%
Part 9) Option D. 800
Part 10) $1,770
Step-by-step explanation:
Part 1) Rename 4/7 as a percent
we know that
To rename a number as a percent, multiply the number by 100
so
(4/7)*100=400/7=57.1%
Part 2) Rename .709 as a percent
we know that
To rename a number as a percent, multiply the number by 100
so
0.709*100=70.9%
Part 3) If 1/3 is equivalent to 33 1/3% what percent is equivalent to 2/3?
we know that
33 1/3%=(33*3+1)/3 %=100/3 %
By proportion
(100/3 %)/(1/3)=x/(2/3)
x=200/3 %=66 2/3 %
Part 4) Alice plays basketball. In one game she shoots 21 free throws and makes 81.25% of them. Estimate how many she makes
To find the exact value multiply the total shoots by the percentage
21*(81.25/100)=17.06
so
<em>To find the estimate value</em>
21 shoots is about 20
81.25% is about 80%
so
20*(80/100)=16
the answer is about 16
Part 5) Estimate 48% of 23.95
To find the exact value multiply the number by the percentage
23.95*(48/100)=11.50
<em>To find the estimate value</em>
23.95 is about 24
48% is about 50%
so
24*(50/100)=12
Part 6) The bill at a restraint is $58.50 and Mrs. Johnson wants to leave a 15% tip. Approximately how much money
To find the exact value multiply the bill by the percentage
so
$58.50*(15/100)=$8.78
<em>To find the approximate value</em>
$58.50 is about $60
$60*(15/100)=$9
Part 7) Which proportion can be used to solve the following percent problem? What is 50% if 100% is 70?
using proportion
x/50=70/100
x=70*50/100
x=35
Part 8) What percent of 50 is 12.5?
using proportion
50/100%=12.5/x%
x=100*12.5/50
x=25%
Part 9) 50 Is 6.25% of what number?
using proportion
50/6.25%=x/100%
x=100*50/6.25
x=800
Part 10) Chris works at Higgins’ Automart and is selling a new Shelby Mustang for $59,000. If he earns a commission of 3%, how much money does he earn?
we know that
$59,000 ------> represent the 100%
using proportion
Find how much money represent 3% of the commission
59,000/100%=x/3%
so
X=$59,000*(3/100)=$1,770
