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3 years ago

Which expression has a solution of 27, if r = 3?

Mathematics

2 answers:

Norma-Jean [14]3 years ago

8 0

Answer:

rx9

Step-by-step explanation:

9x3=27

lisov135 [29]3 years ago

3 0

Answer:

9r = 27

Step-by-step explanation:

Have a great day <3

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Answer:

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Step-by-step explanation:

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3 years ago

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Harrizon [31]

Answer:

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Step-by-step explanation:

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3 years ago

Solve for y: x(y-3)=2y+1

polet [3.4K]

Answer: y=(3x+1)/(x-2)

Step-by-step explanation: Step by step with principles included in the image.

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3 years ago

Read 2 more answers

For the function shown below, find f(2): f(x)=2x^4-8x^2+5x-7

Vikentia [17]

Answer:

F(2)=3

Step-by-step explanation:

4 0

3 years ago

Jake completed a marathon race in 3 hours and 12 minutes. What would be Jake's running time as a decimal?

VikaD [51]

$\text{Given that Jake completed a marathon race in 3 hours and 12 minutes.}\\
\\
\text{we need to find this time in decimals. so we will convert 12 minutes into hours}\\
\\
\text{We know that there are 60 minutes in 1 hour. }\\
\\
\text{so in 1 minute there will be}=\frac{1}{60 }\text{ hour}$

$\text{hence in 12 minutes we have}=\frac{1}{60}\times 12=\frac{1}{5}=0.2 \text{ hours}\\
\\
\text{hence the Jake's running time is}=3\text{hours + 12 minute}\\
\\
=3\text{ hours}+0.2 \text{ hours}\\
\\
=3.2 \text{ hours}$

Hence, Jake's running time in decimal is: 3.2 hours

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3 years ago