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saw5 [17]
3 years ago
14

When the radius of a circle is multiplied by a factor of 3, by what factor will the area of the circle change? The area of a cir

cle with radius 3 is___times as big as the area of a circle with radius 1.
Mathematics
1 answer:
Lisa [10]3 years ago
8 0
Yes, the circle's area will change because the radius is different and when you go to do the formula for area the radius will not be the same it will have tripled. The area of the circle with a radius of 3 would be 28.26. The area of the circle with a radius of 1 would be 3.14. The area of a circle with radius 3 is 9 times as big as the area of a circle with radius one. So the answer is 9. Hope that helped.
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At a local prechool there i a ratio of 3 boy to every 4 girl. If there are 245 total prechooler how many are boy
Georgia [21]

If there are 245 total preschoolers, there will be 105 boys.

  • What is unitary method?
  • The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. What can be values and units.
  • Let's say you go to the store to buy six apples. You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples.
  • Recognizing the units and values is crucial when using the unitary technique to a problem.
  • Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things. We are aware of the quantity of apples and the amount of money in the aforesaid problem.

acc to our question-

  • Fraction of boys = 3/7
  • Fraction of girls = 4/7
  • Total number of students = 245
  • The number of boys will be:
  • = 3/7 × 245.
  • = 105 boys

Therefore, there are 105 boys in the school.

learn more about unitary method click here:

brainly.com/question/24587372

#SPJ4

3 0
8 months ago
A panda and a giraffe start moving towards each other when they are 300 feet apart. The panda is running at a speed of P feet pe
liq [111]

Answer:

(2P + G) feet/min

Step-by-step explanation:

Speed of the panda = P

Speed of the giraffe = P + G

Thus,

Speed of Panda + Speed of Giraffe = approaching time

= P + P + G

= <u>2P + G</u>

Thus, The panda and the giraffe are approaching each other at a rate

of <u>(2P + G) ft/min</u>

<u></u>

<em>Hope it helps :)</em>

6 0
3 years ago
There are 32 students in a class how many ways can the Class be divided into groups with equal numbers of students are what are
kumpel [21]
They can be divided into

2 groups of 16
4 groups of 8
8 groups of 4
16 groups of 2
3 0
3 years ago
Robin was just hired at Groceries &amp; More as a cashler. They pay her $12 an hour. She works 20 hours a week and is going to s
Lostsunrise [7]

Answer:

5 weeks

Step-by-step explanation:

We know that she works at a rate of $12 an hour, she also works 20 hours a week.

The total amount she makes per week is $240 (12 x 20). However, that is without deductions. We have to subtract $34 from the $240.

$240 - $34 = $206.

$206 is the amount she makes in a week and she wants to save $950. How many weeks does she have to save? Well, let's divide.

$950 / $206 = 4.6 weeks. However, if we have to round up to 5 weeks.

4 0
1 year ago
A cake is created by assembling two layers as shown in the diagram below. The exposed surfaces of the cake require frosting.
Hatshy [7]

Answer:

Step-by-step explanation:

352 is the answer

8 0
2 years ago
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