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zepelin [54]
3 years ago
7

Find the value of Z. Explain step by step and I'll mark you brainliest.2.5(2z+5)=5(z+2.5)​

Mathematics
1 answer:
Yuliya22 [10]3 years ago
3 0
The answer is infinite (0=0).

1. Use distributive property to multiply the parentheses. You’ll end up with 5z+12.5=5z+12.5.
2. You’ll notice the equation equals each other. 5z-5z equals zero, same for 12.5.
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Alekssandra [29.7K]

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Step-by-step explanation:

Let's define R as the rate at which one single pipe can fill a tank.

We know that 7 of them can fill a tank in 50 minutes, then we have the equation:

7*R*50min = 1 tank

Whit this equation, we can find the value of R:

R = 1 tank/(7*50min) = (1/350) tank/min.

Now that we know the value of R, we can do the same calculation but now with 11 pipes.

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We need to isolate T.

T = 1 tank/(11*(1/350 tank/min)) = 31.82 min

With 11 pipes, you need 31.82 minutes to fill the tank.

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3 years ago
I need help pleaseeeee<br> No links
RUDIKE [14]
2 x 64 + 4 x 48 = 128 + 192 = 320

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pls mark me as brainliest!
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Step-by-step explanation:

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Step-by-step explanation:

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