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Pavel [41]
3 years ago
7

I will make Brailiest, DO IT STEP BY STEP PLZ! Mrs. Fisher jogs every morning. On average, it takes her 7 ½ minutes to run one m

ile. At this rate, how long does it take her to run 3 miles?
Mathematics
1 answer:
Kazeer [188]3 years ago
6 0

Answer:

22 1/2

Step-by-step explanation: 7 1/2 x3 = 22 1/2

proof 7 1/2 +7 1/2 +7 1/2 = 22 1/2

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Question 15 please. Thanks
horsena [70]
Ignore the decimal places and do 789x38 and you get 29982. Now all you have to do is put the decimal places back. Since 789 was 7.89 it had 2 decimal places and 38 had 1 you have to move 29982 three decimal places to the left making your final answer 29.982.
3 0
3 years ago
Solve the problem.
MA_775_DIABLO [31]
Circumference = 2πr

r = 9

Circumference = 2π(9)
Circumference = 18π
Circumference = 18(3.14)
Circumference = 56.52

Distance: 56.52 meters
8 0
3 years ago
Two fifth of a certain number is 30 what is the number?
vesna_86 [32]
<h2>75</h2>

- - - - - - - - - - - - - - - - - - - - - - - -

Beginning with an "If-then" statement ⇣

<em>If </em><em>2/5 = 30 </em><em>then</em><em> 1/5 = 15</em>

Now we have 1/5, let's make it 1 by multiplying x5.

<em>15 x 5 = </em><em>75</em>

- - - - - - - - - - - - - - - - - - - - - - - -

Good luck! :)

~pinetree

3 0
3 years ago
Which of the following is one way the expressionZ n can be rewritten using summation properties?181 46(47)2 T 21 64(65)1 (64 (65
Reptile [31]
The answer is the third option.

The solution is in the pdf file attached. Please, let me know if you can follow the steps.
Download pdf
5 0
3 years ago
What is the value of the expression below when x=3<br> 10x²- 7x + 10
Andreas93 [3]

Answer: 79

Concept:

Here, we need to understand the idea of evaluation.  

When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.

Solve:

<u>Given information</u>

10x² - 7x + 10

x = 3

<u>Substitute the value into the expression</u>

= 10 (3)² - 7 (3) + 10

<u>Simplify by multiplication</u>

= 10 (9) - 21 + 10

= 90 - 21 + 10

<u>Simplify by subtraction</u>

= 69 + 10

<u>Simplify by addition</u>

= 79

Hope this helps!! :)

Please let me know if you have any questions

8 0
3 years ago
Read 2 more answers
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