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2 years ago

I need help plss!! I don’t understand

Mathematics

1 answer:

MA_775_DIABLO [31]2 years ago

4 0

Since it says what the area of the circle is, you need to work the problem backwards from finding the area. So it would be 100 ÷ 3.14 = 31.84 that is the radius. Next you need to find the diameter, so 31.84 × 2 = 63.68. Now you multiply 63.68 × 3.14 = 199.95, round that to 200, divide 200 ÷ 2 = 100 ÷ 2 = 50 miles

Answer= 50 miles

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A basketball has a diameter of 9.5 inches what is the volume of the basketball using 3.14 for pi.

Step2247 [10]

Answer:

448.69 in^3

Step-by-step explanation:

The volume of a sphere is given by the formula ...

V = (4/3)πr^3

We want to use diameter, so we can substitute r = d/2 into the formula:

V = (4/3)π(d/2)^3 = (4/(3·8))πd^3

V = (π/6)d^3

For the given numbers, ...

V = (3.14/6)(9.5^3) ≈ 448.69 in^3 . . . . volume of a basketball

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2 years ago

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Step-by-step explanation:

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2 years ago

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Eric bought apples and oranges for $7.75. He paid $2.35 for all the apples

Kruka [31]

Answer:

He bought 12 oranges.

Step-by-step explanation:

Key words: "ALL the apples" "EACH orange."

7.75-2.35= 5.4

5.4/0.45= 12

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2 years ago

4n-12=12-4n(If there is no solution, type in "no solution") n= Answer

Kipish [7]

Answer:

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Step-by-step explanation:

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Megan has $50 and saves $5.50 each week. Conner has $18.50 and saves $7.75 each week. After how many weeks will Megan and conner

QveST [7]

After 14 weeks, both Megan and Conner will have saved the same amount.

Step-by-step explanation:

Amount Megan have = $50

Amount saved each week = $5.50

Amount Conner have = $18.50

Amount saved each week = $7.75

Let,

x be the number of weeks.

According to given statement;

M(x) = 50+5.50x Eqn 1

C(x) = 18.50+7.75x Eqn 2

For amount to be same;

Eqn 1 = Eqn 2

$50+5.50x=18.50+7.75x\\50-18.50=7.75x-5.50x\\31.50=2.25x\\2.25x=31.50\\$

Dividing both sides by 2.25

$\frac{2.25x}{2.25}=\frac{31.50}{2.25}\\x=14$

After 14 weeks, both Megan and Conner will have saved the same amount.

Keywords: functions, division

Learn more about linear equations at:

#LearnwithBrainly

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2 years ago