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3 years ago

How do you solve this equation 2/3b=-12

1 answer:

5 0

2/3b = 12

First you have to get rid of 2/3, so you multiply both sides by its reciprical:
(3/2) 2/3b = 12 (3/2) -->b = 36/2 --> b = 18

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Question 7

netineya [11]

Answer:

135 cubic centimeters

Step-by-step explanation:

The formula for volume of a pyramid is lwh/3 = V.

The base (length and width, remember) is 9 cm * 9 cm, because it's a square pyramid. The height is 5 cm. Plug these in!

lwh/3 = V

9*9*5/3 = V

<u>V = 135 cubic centimeters</u>

5 0

4 years ago

If your car gets 22 miles per gallon, how much does it cost to drive 440 miles when gasoline costs $3.00 per gallon?

victus00 [196]

Answer:

$60.00

Step-by-step explanation:

440/22 = 20

20 x 3 = 60

3 0

3 years ago

Read 2 more answers

Consider the radical equation (3√6-x)+4=-8.Check the solution.

Makovka662 [10]

Answer:

$x=12+3\sqrt{6}\\$

Step-by-step explanation:

Hello! to solve this exercise we must apply algebra and the concept of the equality of the equations, remember what we do on the side of the equation we must repeat it on the other side in order not to alter the equality

$(3\sqrt{6} -x)+4=-8\\(3\sqrt{6} -x)+4-4=-8-4\\3\sqrt{6} -x=-12\\3\sqrt{6}-3\sqrt{6} -x=-12-3\sqrt{6}\\-x=-12-3\sqrt{6}\\$

$x=12+3\sqrt{6}\\$

to verify the solution we replace x in the original equation

$(3\sqrt{6} -x)+4=-8\\(3\sqrt{6} -(12+3\sqrt{6})+4=-8\\-12+4=-8\\-8=-8$

how equality is met we have verified the answer

4 0

4 years ago

For which figures does it make sense to discuss surface area?

vekshin1

Choices A, C, and D don't make sense since they are not three-dimensional. Surface area deals with 3D shapes, not 2D.

6 0

4 years ago

Read 2 more answers

Please help!! Im being timed SEE BELOW!!

mars1129 [50]

Answer:

The answer is

15=B

16=C

17=D

18=B

19=D

20=D

I am a math teacher If you need any explanation you can communicate with me on Whats on this number +201557831028

3 0

3 years ago