3 years ago

Equivalent equation of 3(x+6)=4x+7

Mathematics

2 answers:

il63 [147K]3 years ago

8 0

Answer:

Step-by-step explanation:

3x + 18 = 4x + 7

18 - 7 =4x - 3x

11 = x

x= 11

Lena [83]3 years ago

4 0

Answer:

3x+18=4x+7

Step-by-step explanation:

I will comment the answer if you want something different( another answer) because there are a another way to look at this.

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A stone is dropped from the edge of a roof, and hits the ground with a velocity of -185 feet per second. How high (in feet) is t

34kurt

Answer:

The height of the roof is 534.8 feet.

Step-by-step explanation:

Let h be the height of the roof.

We know the formula

$v^2-u^2=2gh$

Since, the stone is dropped from the edge of the roof hence, the initial velocity should be zero. Thus, u = 0

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Now, we have

v = -185 feet per second

g = 32 feet per square second

On substituting these values, we get

$h=\frac{(-185)^2}{2\times 32}\\\\h=534.8$

The height of the roof is 534.8 feet.

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