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3 years ago

-9=-3(x+2)+5x what does x equal

Mathematics

2 answers:

erastova [34]3 years ago

6 0

Exact Form:

x=-3/2

Decimal Form:

x=−1.5x

Mixed Number Form:

x=−1 1/2

atroni [7]3 years ago

6 0

Answer:

-1.5

Step-by-step explanation:

-9=-3(x+2)+5x (switching the sides of the formula can make it easier)

-3(x+2)+5x=-9

2x-6=-9

add 6 to both sides ---> 2x-6+6=-9+6

simplify ----> 2x=-3

divide both sides by 2 ---> 2x/2 = -3/2

simplify ---> x= -3/2

decimal form- -1.5

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3 years ago

If: \qquad AC = 64 AB = 7x + 8, and BC= 3x+6, Find BC

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The answer is 21.

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3 years ago

If the diameter of a youth baseball is 2. 8 inches and the diameter of an adult softball is 3. 8 inches, what is the approximate

Molodets [167]

The approximate difference in their volumes is 17.2 cubic inches

<h3>How to determine the difference in the volume?</h3>

The given parameters are:

Diameter, d = 2.8

Diameter, D = 3.8

The radii are the half of the diameter.

So, we have:

r = 1.4

R = 1.9

The volume of the balls is then calculated using:

$V = \frac{4}{3}\pi r^3$

The difference is then represented as:

$D = \frac{4}{3}\pi (R^3 - r^3)$

Substitute known values

$D = \frac{4}{3}* 3.14* (1.9^3 - 1.4^3)$

Evaluate

D = 17.2

Hence, the approximate difference in their volumes is 17.2 cubic inches