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Doss [256]
3 years ago
15

A) What is the radius of a circle that has an approximate circumference of 81.64 meters?

Mathematics
1 answer:
Alexxandr [17]3 years ago
8 0
For B, the equation for circumference is pi multiplied by diameter. So, 10 * 2 = 20, and 20*3.14 is 62.8 cm

For C, assuming that "approximate" means that they used 3.14 for pi, then 81.64 / 3.14 = 26, and 26 / 2 = 13 cm
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What is value of x in the equation 6x+7-2x=3+5x-9
topjm [15]

Answer: x = 13

Step-by-step explanation: First, we simplify the equation to get 4x + 7 = 5x - 6. Then, from there, we subtract 7 on both sides to get 4x = 5x - 13. Then we subtract 5x from both sides, which would give us -x = -13. Finally, we can divide both sides by -1 (because remember, x = 1) to get that x = 13. Hope this helps!

5 0
1 year ago
Show work on this pls
stepan [7]

Answer:

6.29

Step-by-step explanation:

so you know that the unknown side which is 7x + 27 equals 71.

You can begin by subtracting 27 from 71 which will give you 44.

you then know that 44 = 7x

then you just have to do 44 divided by 7 to find x which isss...

look above at answer  

4 0
3 years ago
HELP!!! i am stuck here
irina1246 [14]

Answer:

<em>2.5 hours</em>

<u>Skills needed: Speed, distance, time problems</u>

Step-by-step explanation:

1) We are given speed and distance, and have to find out the the time (in hours).

- In terms of units, everything is matched up (Since distance and speed use kilometers, and speed and time use hours).

- Time is always the distance you travelled (how far) divided by how fast you travelled (the rate/speed)

---> We can use the formula for time: t=\frac{d}r

t= time

d=distance

r=rate/speed

2) Now, let's plug in for distance and rate.

---> t=\frac{7.5}{3} = 2.5

2.5 hours is the answer.

4 0
2 years ago
Solve 3^2x+3=243 for x.<br><br> A. x = 10<br> B. x = 2<br> C. x = 2/5<br> D. x = 1
telo118 [61]
I think its B but im not 100% sure
3 0
3 years ago
1-4<br> Will give brainliest!!!!<br><br> Pls show work!!
Troyanec [42]
Here you go kind brain

5 0
3 years ago
Read 2 more answers
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