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3 years ago

Which ratios form a proportion

1 answer:

6 0

Now, in order for it to be a proportion, both the number and the denominator must turn to the other number by the same method. I'll clarify when we do the steps.

So, the first one is 4/10 and 10/25

The first thing that you would do is divide 10 by 4, and then 25/10

When you do that, it turns out that they both equal 2.5. This means that both the number and denominator go to the new number with the same method, multiplying by 2.5

So, the answer would be A

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⦁ Kim's age is twice that of her sister. When you add Kim's age to her sister's age, you get 24. How old is each sister?

Vitek1552 [10]

Answer:

Kim is 16 years old and her sister is 8 years old.

Step-by-step explanation:

We can use equations to represent this scenario.

Let Kim's age be 'k' and her sister's age be 's'.

Thus, k=2s (since Kim's age is double of her sister)

and k+s=24 (their ages add to 24 (from question)

Substituting the first equation:

2s+s=24

3s=24

s=8

Therefore, Kim's sister is 8 years old.

Now substitute this value into the second equation:

k+8=24

k=16

Therefore, Kim is 16 years old.

6 0

3 years ago

HELP!!

kkurt [141]

The formula for volume is b • w • h (base times width times height), but you can multiply the numbers in whichever way you want, thanks to the commutative property.

1.5 • 0.4 • 3 = 1.8

which is equal to

1.8m^3 (1.8 meters cubed)

Hope this helps!

3 0

4 years ago

Read 2 more answers

Please help answer the question true or false from question 7a to 7d

elena-14-01-66 [18.8K]

Answer:

7a true

7b false

7c true

7d false

Step-by-step explanation:

hope this helps........ can you give brainlyist

5 0

4 years ago

Read 2 more answers

What is the square root of 18 written in simplest radical form

Trava [24]

To get the simplest radical root form for a non-perfect square, always factor out the number first.
So, for 18, find the factors.
18
6 3
2 3 3
2 3²

so, when you find a pair of the same two numbers, they become squared. Eliminate the squared signs; that number goes to the left, and the left over numbers are multiplied and are put into the square root sign. So, you end up with the final answer:

3 $\sqrt{2}$

3 0

4 years ago

Hector surveyed 500 people and asked them how far they drive to work and what is the last digit of their phone number. He used t

IRISSAK [1]

Answer:postive

Step-by-step explanation:

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3 years ago