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2 years ago

Solve for X and check the solution.-2x=4x+9

Mathematics

1 answer:

koban [17]2 years ago

4 0

-2x=4x+9 |-4x
-6x=9 |:(-6)
x=-1,5

Check:

-2*-1,5=4*-1,5+9
3=-6+9
3=3

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The cost of the rental space is $780 and<br> the price per person for food is $9.75

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80.

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3 years ago

A manufacturing plant earned $80 per man hour of labor when it opened. Each year, the plant earns an additional 5% per man hour.

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Answer:

The amount that plant earns per man hour after (t) years it open is $80 $(1.05)^{\textrm t}$ .

Step-by-step explanation:

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The earning of manufacturing plant when it opened = $ 80 per man hour

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Let The earning of plant after t years = A( t )

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The earning of plant after t years = initial earning × $(1+ \dfrac{\textrm rate}{100})^{\textrm Time}$

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2 years ago

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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

kow [346]

Answer:

616 cm²

Step-by-step explanation:

To find the area of a circle you use the formula A = π · r²

So we know that the diameter is 28 cm, to find the radius we would divide this in half, because d = 2r, giving us 14. Now we can do 14² which is 196, and then times that by pi or in this case 22/7.

196 × (22/7) = 616

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