3 years ago

Simplify 4(x+7) - 7x+ 2. A. 11x+9 B. 11x+30 C. -3x+30 D. -3x+9

Mathematics

2 answers:

kotykmax [81]3 years ago

5 0

Answer:

4 (x+7)-7x+2

4x+28-7x+28

-3x+30

C.-3x+30

Tanya [424]3 years ago

3 0

Answer:

The answer is B

Step-by-step explanation:

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tapes-r-us is have a sale on hq tape players. The regular price is $60. The discount is $18. What percent discount is this?

olga nikolaevna [1]

The discount is 30%

Step-by-step explanation:

Given

Price of tape = $60

Discount = $18

In order to find the percentage, we will use the percentage formula

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Grace [21]

Answer:

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Step-by-step explanation:

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3 years ago

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2 years ago

When x=2 and y=4, by how much does the value of 4x^2 - y exceed the value of 3x^2 - 3y

kakasveta [241]

Step-by-step explanation:

4(2)² - 4 =

4(4) - 4 = 12

3(2)² - 3(4)

3(4) - 12

12 - 12 = 0.

It exceeds the value by 12 :)

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2 years ago

I need help solving systems of linear equations by substitution. {4x+3y=14 3x-2y=2

Sauron [17]

Answer:

A) 4x+3y=14

B) 3x-2y=2

We multiply equation A) by (2/3)

A) (8/3) x +2y = 28/3 then we add this to equation B)

B) 3x-2y=2

5 (2/3) x = 11 (1/3)

x = 2

A) 4 * 2 + 3 y = 14

A) 3y = 6

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Step-by-step explanation:

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3 years ago