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3 years ago

A copy machine makes 143 copies in 3 minutes and 15 seconds. How many copies does it make per minute?

Mathematics

2 answers:

kumpel [21]3 years ago

6 0

I think the Answer is 44 copies per minute
143/3.25 = 44

kirill [66]3 years ago

4 0

Ima say 47 maybe? If not 44

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Determine if the following statement is true or false.

Bas_tet [7]

Answer:

False

Step-by-step explanation:

Negative and Negative always equals positive

Negative and positive always equal negative

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2 years ago

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Find the average rate of change for f(x) = x2 + 9x + 18 from x = −10 to x = 10. A) 3 B) 7 C) 9 D) 11

Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

$\frac{f(b)-f(a)}{b-a}$

Here [ a, b ] = [ - 10, 10 ], thus

f(b) = f(10) = 10² + 9(10) + 18 = 100 + 90 + 18 = 208

f(a) = f(- 10) = (- 10)² + 9(- 10) + 18 = 100 - 90 + 18 = 28, thus

average rate of change = $\frac{208-28}{10-(-10)}$ = $\frac{180}{20}$ = 9

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3 years ago

On a certain day the temperature changed a rate of -3 degrees Fahrenheit per hour how long did it take for the temperature to ch

zhannawk [14.2K]

Answer: is 11 hours.

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3 years ago

A cylinder has a radius of 20 cm and a height of 2 cm. Find the height of another cylinder that has a radius of 4 cm and the sam

iogann1982 [59]

Answer:

The height of the another cylinder 'h' = 7

Step-by-step explanation:

Explanation:-

Step 1:-

Surface area of the cylinder = 2пrh + 2пr^2

Given radius of first cylinder is 20cm

given height of the first cylinder is 2 cm

The surface area of first cylinder is = 2пrh + 2пr^2

= 2п(20)(2)+2п(2)^2

= 4п(20+2)

The surface area of first cylinder is 88п

Step 2:

given data The surface area of first cylinder is 88п is same as second cylinder also

Find the height of the second cylinder

Given Radius of the second cylinder r = 4

Surface area of the cylinder = 2пrh + 2пr^2 = 88п

2п(4)h+2п(4)^2 =88п

on simplification we get

2п (4h+16) = 88п

after cancellation '2п' value and on simplification, we get

4h+16 = 44

4h = 44-16

4h = 28

h=7

Therefore the height of the another cylinder is 'h' =7

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3 years ago

Showing ALL calculations, whether this statement is valid

choli [55]

Answer:

RM79 608.51

Step-by-step explanation:

First year,

RM505 050.00×5%=RM505 050.00×5/100

=RM25 252.50

second year,

(RM505 050.00+RM25 252.50)×5%=RM530 302.50×5/100

=RM26 515.13

third year,

(RM530 302.50+RM26 515.13)×5%=RM556817.63×5/100

=RM27840.88

three years interest,

RM25 252.50+RM26 515.13+RM27840.88=RM79608.51

I don't know that is R or RM 

if it is R ,sorry

Hope can help!

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3 years ago