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In-s [12.5K]
3 years ago
10

If anyone knows the answer to this question please let me know! thanks

Mathematics
1 answer:
Bond [772]3 years ago
7 0

Answer:

D. 10 units

Step-by-step explanation:

Use pythagorean theorem

a^2 + b^2 = c^2\\6^2+8^2= c^2

36+64=c^2\\100=c^2\\\\\\sqrt{100}  =\sqrt{x^2} \\10=c

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Rename 4/7 as a percent. Round to the nearest tenth of a percent if necessary.
enyata [817]

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

4 0
3 years ago
Help me resolve this 3.25 × 6.5 =​
Alexeev081 [22]

The answer is:

21.125

8 0
3 years ago
Read 2 more answers
Why do you need to calculate mean, or modo of a set of data?
goldfiish [28.3K]
To find the average of the data
3 0
3 years ago
Wendy took a trip from city A to city B, a distance of 220 mi. She traveled part of the way by bus, which arrived at the train s
Sphinxa [80]

Answer:

1.72 hours on the train.

Step-by-step explanation:

The distance between the two cities is 220 miles. Therefore the sum of the bus and train distances is 220 miles. Let x be the distance by train and y the distance by bus: x + y = 220

Bus speed was 30 mph and train speed was 85 mph. The whole trip was 5 1/2 hours, that is 5.5 hours.

We have to, the bus distance would be equal to:

y = 260 - x

speed equals distance over time, like so:

v = d / t; if we rearrange for time

t = d / v, we can do another equality, since we know that the total time is 5.5 hours

5.5 = x / 85 + (260 - x) / 30; reorganizing we have left that:

(30 * x + 85 * 260 - 85x) / 85 * 30 = 5.5

Solving:

-55 * = 2550 * 5.5 - 22100

x = 146.81

146.81 miles would be the train distance.

To find the time, we divide by the speed of the train which is 85 mph:

146.81 / 85 = 1.72 h

We buy, with the equation the time:

146.81 / 85 + (260 - 146.81) / 30 = 5.5 hours

Therefore, Wendy takes 1.72 hours on the train.

6 0
3 years ago
-1 3/4+ 1 1/6 what is the answer I say -7/12
Bingel [31]

Answer:

No, the correct answer of -1\frac{3}{4}  + 1\frac{1}{6} = \frac{11}{12}

Step-by-step explanation:

The given expression is -1\frac{3}{4}  + 1\frac{1}{6}

As we know that a mixed fractiona\frac{b}{c} can be converted into proper or improper fraction as a\frac{b}{c}  = \frac{ac + b}{c}

⇒ -1\frac{3}{4}  = \frac{(-1) (4)+ 3}{c}  = \frac{-4 + 3}{4}  =  \frac{-1}{4}

and, 1\frac{1}{6}  = \frac{(1) (6)+ 1}{6}  = \frac{6 + 1}{6}  =  \frac{7}{6}

Hence, the simplified expression = \frac{-1}{4}  + \frac{7}{6}  = \frac{-1(3)  + 7(2)}{12}   = \frac{11}{12}

or, -1\frac{3}{4}  + 1\frac{1}{6} = \frac{11}{12}

6 0
3 years ago
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