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STatiana [176]
3 years ago
8

Please solve these for 20 points : solving formulas for a variable

Mathematics
1 answer:
Digiron [165]3 years ago
6 0
6. (A/pi = r^2)
7. [(P - 2l)/2 = w]
8. [C/(2pi)= r]
9. (2A/h = b)
10. (E/c^2 = m)
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Find the selling price of a $50 item after a 50 % markup
siniylev [52]

Answer:

75 dollars

Step-by-step explanation:

If an item is 50 and you want to markup 50%, you must find 50% of 50 to find how much the item will go up by from 50.

So 50% of 50 means 50% times 50.

50%=.5 or 1/2

So .5(50)=25.

The item is going up by 25 dollars.

So we started at 50 dollars.

So 50+25 is going to be the new amount.

50+25=75 is the new amount.

5 0
3 years ago
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Let’s now add x to both sides of the equation and consider the new equation x squared+5+x=11
irina1246 [14]

Answer:x=3


Step-by-step explanation:x squared is one x.you then add the X's to get 2x.then you subtract the five on the other side to get 2x=6.after you get that you divide both sides by 2 to get x=3

3 0
3 years ago
A ) 4.05 per pound <br> B) $5.40 per pound <br> C) $2.70 per pound <br> D) $1.35 per pound
Nadusha1986 [10]

Answer:

D is the correct answer

Step-by-step explanation:

As you see, the product of peaches 1 and 2 have the different in cost is $1.35 and $2.70. As well as the following product of peaches also have the same increase in money.

So 2.70 - 1.35 = 1.35 so the common increase would be $1.35

Hope this help you :3

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3 years ago
Which angle is an exterior angle of the triangle?
Alekssandra [29.7K]

Answer:

D

Step-by-step explanation:

Because it is on the outside

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Which describes a person designated to receive money from a life insurance
Rainbow [258]

Answer: C

Step-by-step explanation: Beneficiary

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