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2 years ago

Which phrase describes an unknown or changeable quantity?

Mathematics

2 answers:

Assoli18 [71]2 years ago

4 0

Hello!

An unknown or changeable quantity is a variable. We can write these expressions below and see which one has a variable.

A. 15

B. 60(5)

C. 2p

D. $3.76

As you can see, we do not know how many pages are in the book. Therefore, our answer is C.

I hope this helps!

Monica [59]2 years ago

4 0

Hey!

your answer will be C

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2. in a class of 50 students, the number of females is 2 more than 5 times the number of males. How many males and females are t

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There are 8 males in the class and 42 females.

Step-by-step explanation:

This question can be solved using a system of equations.

I am going to say that:

x is the number of females.

y is the number of males.

Class of 50 students

This means that $x + y = 50$

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This means that $x = 5y + 2$

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2 years ago

Combine like terms 10 - 4x + 3y - 17x

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Answer:

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Step-by-step explanation:

10 - 4x + 3y - 17x

= -4x - 17x + 3y + 10

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