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finlep [7]
3 years ago
10

A circle has a diameter of 10 yards. What is it’s circumference? Use 3.14 for , and do not round your answer. Be sure to include

the correct unit in your answer.

Mathematics
1 answer:
Jlenok [28]3 years ago
4 0
The answer is 31.415
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Question in pic!!!!!!​
Elden [556K]
I think maybe the second one I’m not fully sure but I hope this might help
8 0
3 years ago
An athlete knows that when she jogs along her neighborhood​ greenway, she can complete the route in 10 minutes. It takes 20 minu
IgorLugansk [536]

Answer:

10 miles per hour.

Step-by-step explanation:

Let x represent athlete's walking speed.

We have been given that her jogging rate is 5 mph faster than her walking​ rate, so athlete's jogging speed would be x+5 miles per hour.

\text{Distance}=\text{Rate}\cdot \text{Time}

10 minutes = 1/6 hour.

20 minutes = 1/3 hour

While walking, we will get D_{\text{walking}}=x\frac{\text{miles}}{\text{hour}}\cdot \frac{1}{3}\text{hour}

D_{\text{walking}}=\frac{x}{3}

While jogging, we will get D_{\text{jogging}}=(x+5)\frac{\text{miles}}{\text{hour}}\cdot \frac{1}{6}\text{hour}

D_{\text{jogging}}= \frac{(x+5)}{6}

Since athlete is covering same distance while walking and jogging, so we can equate both expressions as:

\frac{x}{3}=\frac{x+5}{6}

Cross multiply:

6x=3x+15

6x-3x=15

3x=15

\frac{3x}{3}=\frac{15}{3}\\\\x=5

Therefore, athlete's walking speed is 5 miles per hour.

Jogging speed: x+5\Rightarrow 5+5=10

Therefore, athlete's jogging speed is 10 miles per hour.

3 0
3 years ago
GUYS GIRLS NONBINARY PEEPS I NEED YOUR HELP I HAVE A TEST THAT IS DUE IN 4 HOURS IF YOU GUYS CAN ANSWER THIS QUESTION THANK YOU​
antoniya [11.8K]

Answer:

The answer is A

Step-by-step explanation:

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5 0
3 years ago
Solve the equation show your work 3x equals 45​
natima [27]

Answer:

x = 15

Step-by-step explanation:

3x / 3 = 45 / 3 x = 15

7 0
3 years ago
Read 2 more answers
Which of the following is the complete factorization of 3x2-6x-240?
AURORKA [14]
1.  Reduce  <span>3x2-6x-240   to    x^2 - 2x - 80

2.  Use " ^ " to indicate exponentiation

3.  Factor  </span>x^2 - 2x - 80 using completing the square:

     x^2 - 2x + 1^2 - 1^2 - 80

         (x+1)^2 - 1  - 80
          (x+1)^2 - 81
          (x+1)^2 - 9^2  = (x+1-9)(x+1 +9), or (x-8)(x+10)

Final answer, with all factors shown:      3(x-8)(x+10)
4 0
3 years ago
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