Which is equivalent to 8x−y+3x?

Mathematics

2 answers:

steposvetlana [31]3 years ago

6 0

Answer:

11x - y

Step-by-step explanation:

Tom [10]3 years ago

4 0

Answer: 11x - y = 8x - y + 3x

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One number added to three times another number is 24. Five times the first number added to three times the other number is 36. F

Lera25 [3.4K]

Okay, so the equations would be:
x + 3y = 24
3y + 5x = 36

Imma use Substitution to solve this:
x = -3y + 24

3y + 5(-3y + 24) = 36
3y - 15y + 120 = 36
-12y + 120 = 36
-12y = -84
y = 7

x = -3(7) + 24
x = -21 + 24
x = 3

So the first number (x) would be 3 and the second number (y) would be 7.

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Find the radius and circumference of a CD with a diameter of 4.75 inches.

nexus9112 [7]

Radius is half of diameter.
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What is the slope of the line through (-9, 6) and (-3, 9)? Choose 1 answer:

trasher [3.6K]

Given: Points (-9, 6) and (-3, 9)

Find: The slope of the line that goes through those two points

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Plug in the values