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olga nikolaevna [1]
3 years ago
7

Please Help! Will mark brainliest if correct! THANK QQQQQQQQQQQQQQQQQQ!

Mathematics
2 answers:
wolverine [178]3 years ago
4 0

Answer:

28.26

Step-by-step explanation:

Just multiply 9x3.14 It would be different if it was the diameter and the diameter is 4.5

Fiesta28 [93]3 years ago
3 0

Answer:

About 28.26 inches.

Step-by-step explanation:

The formula for circumfrence is c = 2(pi) * r.

We know that r = 4.5 (because the diameter is 9 inches).

So, the equation is c = 2(pi) * 4.5

Let's solve:

c = (2*3.14) * 4.5

c = 6.28 * 4.5

c = 28.26

Therefore, the final answer is 28.26 inches.

Of course, this is not exact because pi is irrational and goes on forever, but the question is asking for an estimate anyways.

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A florist has 30 carnations and 42 roses. He wants to put the flowers in vases so that each vase has the same number of flowers
Nesterboy [21]

Note that

  • 30=2·3·5;
  • 42=2·3·7.

Find the grearest common factor GCF(30,42). You can see that numbers 30 and 42 have common factors 2 and 3, then

GCF(30,42)=2\cdot 3=6.

This gives that the greatest number of identical vases florist can fill is 6. Each vase will contain

  • 30:6=5 carnations;
  • 42:6=7 roses.

Therefore, in each vase will be 12 flowers (5 carnations and 7 roses).


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3 years ago
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3 years ago
A store is having a sale in which all items are 20% off. If p is the original price of an item, then the equation p - 0.2p = 0.8
katovenus [111]

Answer:

Answer Expert Verified

We are given that there is a 20% sale in the store. Moreover, the sale price of an item is p - 0.2p, where p is the price of the item. So, we get that, p - 0.2p is equivalent to 0.8p

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0.234 is bigger or less than 0.76​
Katarina [22]

Answer: 0.234 is less than 0.76

Step-by-step explanation:

0.234 can be rounded out to 0

0.76 can be rounded out to 1

8 0
3 years ago
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Two trains are traveling towards each other at a constant speed. The trains are currently 714 miles from each other. The speeds
shutvik [7]
55mph.

you can solve it using the equation distance=speed x time

your total distance is 714, and you have 2 trains, one traveling some speed, x, and one traveling x+8, both traveling for 7 hours. 
your equation would look like this
714 = x(7) + (x+8)(7)
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