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Gennadij [26K]
3 years ago
6

From the set {4, 8, 16}, use substitution to determine which value of x makes the equation true.

Mathematics
1 answer:
Annette [7]3 years ago
6 0

Answer:

8

Step-by-step explanation:

Use substitution: substitute each number from the set in for x, and see if the result from dividing is 45.

4

360/x=45

360/4=90

90 ≠ 45

Therefore, 4 does not make the equation true

8

360/x=45

360/8=45

45=45

Therefore, 8 does make the equation true.

16

360/x=45

360/16=22.5

22.5 ≠ 45

Therefore, 16 does not make the equation true.

So, 8 is the value that makes the equation true

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LuckyWell [14K]

Answer:

C) (6,2)

Step-by-step explanation:

Rewrite equations:

y=x−4;x+2y=10

Step: Solve y=x−4for y:

y=x−4

Step: Substitute x − 4 for y in x+2y=10:

x+2y=10

x+2(x−4)=10

3x−8=10(Simplify both sides of the equation)

3x−8+8=10+8(Add 8 to both sides)

3x=18

3x

3

=

18

3

(Divide both sides by 3)

x=6

Step: Substitute6forxiny=x−4:

y=x−4

y=6−4

y=2(Simplify both sides of the equation)

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Answer:

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Step-by-step explanation:

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Simplify the following algebraic expression: 2 (2x + 3y) + 3 (5 – 2x) +1+y
Gnoma [55]

Answer: -2x+7y+16

Step-by-step explanation:

1. Distribute 2 through the parentheses

  • 4x+6y+3(5-2x)+1+y              
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2. Collect like terms

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3. Solution, -2x+7y+16

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The following pentagon, ABCDE is rotated about the origin 90 counterclockwise. Select the new coordinates of C and E after the
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Answer:

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Step-by-step explanation:

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user100 [1]

Answer:

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Step-by-step explanation:

This is an arithmetic sequence because 2 is added every time.

2x + 1 = 389

2x = 388

x = 194

194* 2 + 1 = 389

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