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3 years ago

I need help with number 3 please and thank you

Mathematics

1 answer:

murzikaleks [220]3 years ago

3 0

So here we're dealing with equivalent fractions.
It's really simple to find the answer, so I'll try to explain the best I can.

2 dogs / 5 cats is really just 2/5.
If we want to find an equivalent fraction, we have to multiply the numerator and the denominator by the same number.

Currently the number of cats is 5, and we need it to be 140. What we need to do is find the number it has to be multiplied by to equal 140, which is 140 divided by 5. 140 divided by 5 is 28, so 5 x 28 = 140!

We need to multiply the denominator (5) by 28, so that we can get 140. What we have now is ?/140.

Like I said, to find an equivalent fraction, we need to multiply the numerator by the same number as we did the denominator, which is 28!

2 x 28 = 56.

So 2/5 is the same as 56/140.

The answer is D) 56 Dogs/140 Cats.

Hope this helps!
If you're confused about anything leave me a reply and I'll try to explain the best that I can!

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3 years ago

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3 years ago

The result after adding a set of numbers or is called a ___.

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Answer:

The result after adding a set of numbers or is called a sum.

Step-by-step explanation:

Consider the provided information.

The four mathematical operations are:

$+,-,\times ,\div$

The sign + is used to add numbers.

The sign - is used to subtract the numbers.

The sign × is used for the product of the numbers.

The sign ÷ is used for division of the numbers.

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For example:

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3 years ago

the length of a rectangle is six inches more than width, if the preimeter of the rectangle is 24 inches find the length

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Length = 9 inches

Step-by-step explanation:

The perimeter of a rectangle is:

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24 = 2(a+b)

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then:

24 = 2((b+6)+b)

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Check:

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