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IrinaVladis [17]
2 years ago
15

Find the volume of the composite solid.

Mathematics
2 answers:
ioda2 years ago
6 0
I hope this helped, have a nice day

jasenka [17]2 years ago
4 0
The anwser is 5 i hope this helped
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A dealer sold 500 tennis racquets some were sold at $20 each and the rest were sold at $45 each. The total receipts from these s
arlik [135]

Answer:

He sold 100 rackets for $ 20

Step-by-step explanation:

To start, we have to make 2 equations, one that represents the number of rackets and the other the money

x + y = 500

x * 20 + y * 45 = 20000

we clear x in the first equation

x + y = 500

x = 500 - y

we replace x in the second equation with (500 - y)

x * 20 + y * 45 = 20000

(500 - y) * 20 + y * 45 = 20000

10000 - 20y + 45y = 20000

-20y + 45y = 20000 - 10000

25y = 10000

y = 10000/25

y = 400

we replace x in the first equation with the value obtained

x = 500 - y

x = 500 - 400

x = 100

He sold 100 rackets for $ 20

8 0
3 years ago
Read 2 more answers
A cylinder has a radius of 4x + 2 and a height of 5x + 4. Which polynomial in standard form best describes the total volume of t
Olenka [21]
Area of the base = pi*(4x+2)^2 = pi*(16x^2 +16x +4)

volume of cylinder = pi*r^2 *h 

V = pi *(16x^2 +16x +4)(5x+4) = pi*(80x^3 +80x^2 +20x +64x^2 +64x +16) = 

= pi*(80x^3 +144x^2 +84x +16)

than we consider it without pi so result choice A. is right sure 

hope helped 
3 0
2 years ago
Read 2 more answers
A store makes a profit of $15 on a wallet, after a mark up of 60%, what is the selling price of the wallet ?
Radda [10]
1.5 multiplied by 6 equals 9
3 0
3 years ago
Mary can travel 174 miles in 3 hours.at this rate how far can she travel in 7 hours
Aneli [31]
174/3=58 miles in one hour 7*58=406 miles
or you and do 7/3*174=406
8 0
3 years ago
What is the slope of Y=0?
olganol [36]
The slope is 0!! any horizontal line, like y = 1, y = 2, y = any other number, has a slope of 0. because it's a horizontal line, it's flat, so there isn't any incline or decline. just as a note: vertical lines (x = 1, etc.) have an undefined slope.
3 0
3 years ago
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