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4 years ago

How do you solve 21r < 7?

Mathematics

2 answers:

quester [9]4 years ago

5 0

21r < 7
Divide by 21
r < 7/21

prohojiy [21]4 years ago

4 0

21r<7

divide by 21

21/21 r< 7/21 <----- divide the numerator and denominator by 3

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defon

Answer:

1 and 3

Step-by-step explanation:

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3 years ago

The amount of water in a bottle is reduced by 85% to 120 ml. How much water was originally in the bottle?

sveta [45]

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4 years ago

Can someone plz help me?

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Answer:

The first graph

Step-by-step explanation:

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4 years ago

An experiment consists of choosing objects without regards to order. Determine the size of the sample space when you choose the

sdas [7]

Answer:

$n= 75, 582$

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Step-by-step explanation:

Generally the size of the sample sample space is mathematically represented as

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So for a, where N = 19 and r = 8

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4 years ago

What is the answer to the series of equations

Aleonysh [2.5K]

Answer:

$71\frac{2}{3}$

Step-by-step explanation:

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3 cups = 3x

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25 + y² = 89

y²= 89 - 25

y²= 64

y = 8, lemon = 8

3d equation

3 circles = 3c

3c = 44

c = 44/3 = 14 2/3

4th equation

25 + 32 + 14 2/3 = 71 2/3

8 0

3 years ago

Read 2 more answers