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3 years ago

What is 3(9-3r)= simplifyed

Mathematics

2 answers:

Gwar [14]3 years ago

6 0

27-9r
explaintion:
3•9+3•-3r
27+3•-3r=
27-9r

galben [10]3 years ago

6 0

Answer:

r = 4

Step-by-step explanation:

Simplifying

3r + -3 = 9

Reorder the terms:

-3 + 3r = 9

Solving

-3 + 3r = 9

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '3' to each side of the equation.

-3 + 3 + 3r = 9 + 3

Combine like terms: -3 + 3 = 0

0 + 3r = 9 + 3

3r = 9 + 3

Combine like terms: 9 + 3 = 12

3r = 12

Divide each side by '3'.

r = 4

Simplifying

r = 4

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2 years ago

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3 years ago

Christine runs 10 miles in 75 minutes. At the same rate, how many miles would she ru I miles

Len [333]

Answer:

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Step-by-step explanation:

Complete Question:

Christine runs 10 miles in 75 minutes. At the same rate, how many miles would she ru n in 69 minutes?

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We need to find the unit rate first and then find our answer. To get unit rate, we need to know the number of miles she runs in "1 minute". So, we will divide number of miles by number of minutes, that is given. Hence:

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2 years ago