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USPshnik [31]
3 years ago
9

Not sure of this one. can an.expert help

Mathematics
1 answer:
kifflom [539]3 years ago
6 0

How to get answer by JKismyhusbandbae: To get the answer you would multiply

Pi(3.14) times Radius which is R otherwise 80 square times H which is height 1.3.

It will need around 26138.050... and more it is not a repeating decimal I just simplified it.

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What value is true of x makes this equation true 0.7x-5=0.2x+1
Sever21 [200]

Answer:

x=12

Step-by-step explanation:

First you make sure x is on both sides of the equation. So you do 0.7x-5-0.2x=0.2x+1-0.2x. Which just simplifies to 0.5x-5=1. You make sure x is the only thing on that side of the equation so you do 0.5x-5+5=1+5 which simplifies to 0.5x=6. Multiply the equation times 2 to just have x. x=12. The value that makes true of x is 12.

7 0
3 years ago
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Step-by-step explanation:

5 0
3 years ago
What is the solution to the equation 9x - 1<br> = 80.<br> X = -9<br> X = 1<br> x = 81<br> x=9
IgorLugansk [536]
X= -9 because I looked it up
4 0
3 years ago
Read 2 more answers
Which expression is equivalent to 5a+20? A: 5(5a+4). B: 5(a+4). C: 5(a+20). D: 5(a+1)
guajiro [1.7K]

Answer:

5(a+4)

Step-by-step explanation:

expression is equivalent to 5a+20

To get the equivalent expression we need to factor the given expression

5a+ 20

5a can be written as 5 * a

20 can be written as 5*2*2

WE can see that common factor is 5 for both 5a and 20

So GCF is 5

Now we factor out GCF 5

WE put 5 outside and write all the left of factors inside the parenthesis

5a +20

5 (a+2*2)

5(a+4)

4 0
3 years ago
Angela bought gifts for her friends, and each gift cost $10. Let y represent the total cost and x represent the number of gifts.
Otrada [13]

each gift =$10

total=y

number of gifts =x

therefore,total= each gift * number of gifts

=$10* x

8 0
3 years ago
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