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3 years ago

How do you solve 8 = 3r - 1

Mathematics

2 answers:

Zanzabum3 years ago

8 0

add 1 to both sides then divide by 3. the answer should be r=3

kicyunya [14]3 years ago

8 0

Answer:

r=3

Step-by-step explanation:

First, you would add 1 to both sides so:8+1=3r-1+1 so that gives you 9=3r.

Then, you divide 3 from both sides. 9/3=3r/3 so that gives you r=3

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Lina20 [59]

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3 years ago

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at one scholl at prep level there were 5 set of twins,two sets of triplets and one set of quadruplets starting school this year.

IrinaK [193]

Answer: The fraction of set of twins= $\frac{5}{8}$

The fraction of sets of triplets= $\frac{2}{8}$

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Step-by-step explanation:

Given: The number of set of twins=5

The number sets of triplets = 2

The number of set of quadruplets=1

⇒ The total number of multiple birth students =5+2+1=8

∴ The fraction of set of twins= $\frac{\text{set of twins}}{\text{ total multiple birth students}}=\frac{5}{8}$

∴ The fraction of sets of triplets= $\frac{\text{set of triplets}}{\text{ total multiple birth students}}=\frac{2}{8}$

∴ The fraction of set of quadruplets= $\frac{\text{set of quadruplets}}{\text{ total multiple birth students}}=\frac{1}{8}$

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3 years ago

What is the radius of a circle with a area of 112 square inches

Ugo [173]

Answer:

$\displaystyle 5,9708213214...\:in.$

Step-by-step explanation:

$\displaystyle {\pi}r^2 = A \\ \\ \frac{{\pi}r^2}{\pi} = \frac{112}{\pi} \hookrightarrow \sqrt{35,650707253...} = \sqrt{r^2} \\ \\ \boxed{5,9708213214... = r}$

I am joyous to assist you at any time.

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Hope it helps

Please mark me as the brainliest

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