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3 years ago

2x + 5 Find the val 3x+15

Mathematics

1 answer:

Crank3 years ago

3 0

Answer:

2x + 5: Solve

$2x + 5 - 5 = 0 - 5$

$2x / 2 = -5 / 2$

$x = -5/2$

3x + 15: Solve

$3x + 15 - 15 = 0 - 15$

$3x / 3 = -15 / 3$

$x = -5$

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3 years ago

A boy, flying a kite, holds the string 5 feet above the ground and plays out string at 2 ft./sec. as the kite moves horizontally

yKpoI14uk [10]

Answer:x = 75

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2 years ago

Based on the scatterplot, which equation BEST represents the relationship between velocity and time?

lutik1710 [3]

The line of best-fit that represents the relationship between velocity and time is:

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1 year ago

A triangle has two side of length 3 and 7. The third side of this triangle must not be shorter than (blank) or longer than (blan

Marina86 [1]

Answer:

The sum of two side lengths of a triangle must be greater than the length of the third.

So, if two side lengths are 3 and 7, the length of the third side must be less than 10 units.

However, it cannot be shorter than 4 units, as 3 + 4 = 7.

So your answer is: The third side of this triangle must not be shorter than 4 or longer than 10

Let me know if this helps!

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3 years ago

5÷x-4 - 2÷x+2 = 4÷x-4

Alborosie

I'd suggest you begin by subtracting 4 / (x-4) from both sides. Doing that would leave you with 1 / (x-4) - 2 / (x+2) = 0.

LCD is (x-4)(x+2). Mult. all three terms by (x-4)(x+2). The resulting equation is

x+2 - 2(x-4) = 0. Then x+2 = 2x - 8 => x = 10

Subst. 10 for x in the original equation to verify that 10 is indeed a solution.

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3 years ago