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Alex73 [517]
3 years ago
13

How to solve related rate problems

Mathematics
1 answer:
jolli1 [7]3 years ago
6 0
Goooooooooooooooogle
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2. The bring walks 2km to school and John walk 800m.
Firdavs [7]

Step-by-step explanation:

km to m

1 km = 1000 m

2km = 2000 m

2000 : 800

20:80

answer: 1:4

3 0
3 years ago
HELP MEEEEEE<br> show all your works!
Gekata [30.6K]

Answer:

14%

Step-by-step explanation:

A change from 50 to 57 represents a positive change (increase) of 14%

Percent change =\frac{New-old}{old}× 100%

\frac{57-50}{50}× 100% = 14

8 0
2 years ago
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HELPP! ASAP PLS!! Find the surface area of the composite solid. Leave your answer in exact terms.
Andreyy89

Answer:

Step-by-step explanation:

First find the surface area of the clyinder and find the area circles and subtract

Then find the surface area of a cone, remove the circle area and double it.

Clyinder surface area (without circle area) 2πrh+2πr2=2·π·4·6+2·π·42≈251.32741

251.32741 - 50.2 - 50.2

Cone area: A=πr(r+h2+r2)=π·4·(4+32+42)≈113.09734

113.09734 - 50.2 - 50.2

Total: 12.69734 + 150.92741 = 163.62475

3 0
2 years ago
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Llana [10]

Answer:

Rent

Step-by-step explanation:

Yes

3 0
3 years ago
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Write an expression for the verbal phrase:<br> the difference between k and half of b is 47
Helga [31]

k-1/2b=47 because the difference is subtraction and half b is a half fraction and  it equals 47.

6 0
3 years ago
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