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inn [45]
3 years ago
15

Can anyone please help me with this with explanation?

Mathematics
1 answer:
HACTEHA [7]3 years ago
7 0

Answer:

C

Step-by-step explanation:

11.2y - 7.4y = 141.36 \\ 3.8y = 141.36 \\ y = 37.2

the error he made is he added 7.4y+11.2y

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What is the volume of a football in cm³​
Yuki888 [10]

Answer:

Around 4800 cubic centimeters.

I hope this was helpful.

6 0
3 years ago
A manufacturer has been selling hats at $8 a piece, and at this price, consumers have been buying 6000 hats per month. The manuf
gtnhenbr [62]

Answer:

$10

Step-by-step explanation:

Initial selling price per hat= $8

Number of hat sold= 6000

Revenue generated = $8*6000=$48000

Cost of producing hats = $4 per hat

Production cost = $4*6000=$24000

Profit = $48000-$24000=$24000

Increasing the price per hat by $2

Selling price per hat = $2+$8=$10

Number of hats sold are 500 fewer = 6000-500= 5500 hats

Revenue generated = $10*5500 = $55000

Cost of production is the same , where $4 per hat = $4*5500 =$22000

Profit generated = $55000-$22000 =$33000

This means at a price of $10 per hat , selling 500 fewer hats, the manufacture still makes a profit of $33000 which is $9000 more. It will be reasonable to hat at $10 because the profit will increase.

8 0
3 years ago
100pts!! Ellis is painting wooden fenceposts before putting them in his yard. They are each 7 feet tall and have a diameter of 1
NeX [460]

Answer:

39.25 cubic feet of paint will be needed by Ellis.

Step-by-step explanation:

Step-by-step explanation:

Volume of a cylinder:

The volume of a cylinder of radius r and height h is given by:

V = \pi r^2h = 3.14r^2h

How much paint will Ellis need to paint all the surfaces of the 10 fenceposts?

This is the combined volume of these 10 fenceposts.

They are each 5 feet tall and have a diameter of 1 foot.

Radius is half the diameter, so r = \frac{1}{2} = 0.5. Also h = 5

10 fenceposts:

Each has the same volume, so:

V = 10(3.14)r^2h = 31.4(0.5)^2(5) = 39.25

39.25 cubic feet of paint will be needed by Ellis.

hope this helps

6 0
2 years ago
Read 2 more answers
3) Three times the sum of four and a number is twice the number.
Anna11 [10]

Answer:

3(4+n)=2n

Hope this helps

4 0
3 years ago
A model is made for a sports car. The car measures 12 ft in length. The model is 10 inches in length. Write the ratio of car to
Tanya [424]
6:5

basically 12/10
which then reduces. hope this helps :)
3 0
3 years ago
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