3 years ago

Need help + Fast! I suck at math

1 answer:

3 0

Your answer is C: c = 2.50 + 2.50n

To get this answer I looked at the possible answers and inserted the numbers from the chart to see which fit.

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What is the value of m in the equation 5m − 7 = 6m 11? 18 1 −18 −1.

denpristay [2]

Answer:

-7 = m

Step-by-step explanation:

5m − 7 = 6m

Subtract 5m from each side

5m-5m − 7 = 6m-5m

-7 = m

6 0

2 years ago

Which algebraic property could be used to rewrite 3x ⋅ (7y ⋅ 4) as (3x ⋅ 7y) ⋅ 4?

Reil [10]

Associative property of <span>multiplication</span>

8 0

3 years ago

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27^x = 9^x − 4 Question 1 options: x = 8 x = 4 x = −4 x = −8

Mariulka [41]

Answer:

x = -8

Step-by-step explanation:

Given the equation:

$27^x=9^{x-4}$

Note that

$27=3^3\\ \\9=3^2,$

then

$27^x=(3^3)^x=3^{3x}\\ \\9^{x-4}=(3^2)^{x-4}=3^{2(x-4)}$

Rewrite the equation as

$3^{3x}=3^{2(x-4)},$

then

$3x=2(x-4)\\ \\3x=2x-8\\ \\3x-2x=-8\\ \\x=-8$

4 0

3 years ago

Which equation has the same solution as 7x - 14 = 21?

Kryger [21]

Answer: 7 x 3 = 21

Step-by-step explanation:

6 0

3 years ago

You can rent time on computers at the local copy center for a a $ 7 setup charge and an additional $ 3.50 for every 10 minutes

bazaltina [42]

Answer:

The answer should round up to 40 minutes. Do it to make sure the answer is 4 which in this case = 40

Step-by-step explanation:

$22 - 7 \div 3.50$

8 0

2 years ago

Read 2 more answers