3 years ago

Which rates are unit rates?

1 answer:

5 0

Unit rate is a rate that has a denominator of 1. In order to get the unit rate given the denominator is not 1, then unit rate is acquired by getting the equal ration with denominator 1. On the question, Letter A. 4 yd/carry, Letter B. 35 mi/1gal and Letter D. 3 cups per batch are unit rates.

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There are 30 students in Ava’s class. Nine of them belong to the Pep Club. What fraction of the class are Pep Club members?

Alex Ar [27]

Answer:

total no. of students=30

pep club students =9

:=9/30 divide by 3

;=3/10

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2 years ago

If three less than one half a number is equal to one-third of the same number, find the number

Anastasy [175]

Answer: The number would be 18

Step-by-step explanation:

18/2=9 9-3=6 6*3=18

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3 years ago

Which statement explains how the lines x+y=2 and y=x+4 are related?

Basile [38]

Answer:

(2)They are perpendicular.

Step-by-step explanation:

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3 years ago

In the equation c*2=22 what is the next step in the equation solving sequence?

romanna [79]

Divide 22 by 2 to get "c" isolated.

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3 years ago

Simplify -9(1-10n) - 2(3n+9)

agasfer [191]

Answer:

3 (28 n - 9)

Step-by-step explanation:

Simplify the following:

-9 (1 - 10 n) - 2 (3 n + 9)

-9 (1 - 10 n) = 90 n - 9:

90 n - 9 - 2 (3 n + 9)

-2 (3 n + 9) = -6 n - 18:

90 n + -6 n - 18 - 9

Grouping like terms, 90 n - 6 n - 18 - 9 = (90 n - 6 n) + (-9 - 18):

(90 n - 6 n) + (-9 - 18)

90 n - 6 n = 84 n:

84 n + (-9 - 18)

-9 - 18 = -27:

84 n + -27

Factor 3 out of 84 n - 27:

Answer: 3 (28 n - 9)

4 0

3 years ago