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2 years ago

A Copy of machine produces 80 copies in 5 minutes. How many copies would be produced in 40 minutes?

Mathematics

2 answers:

BlackZzzverrR [31]2 years ago

6 0

The answer would be 640. To find the number of how many copies are produced in 1 minute you have to write 80 divided by 5 which equals 16. Now you multiply 16 and the 40 minutes which gives you 640 copies.

Leno4ka [110]2 years ago

4 0

640? 80x8 because 5 40 times is eight

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tino4ka555 [31]

Answer:

Step-by-step explanation:

last year 1/5 of the class played sports, so s = (1/5) c

the next year, s increased by 5, c increased by 10 and the fraction changed to 1/4, so for the next year (s+5) = (1/4)(c+10)

To solve this we can substitute s = (1/5)c from the first equation into the second, so

((1/5)c + 5)=(1/4)(c+10), simplify both sides

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5 0

2 years ago

Item 15

Elenna [48]

Answer:

Step-by-step explanation:

i read though actually easy

7 0

2 years ago

Worth 20 points!! If you answer wrong or something not related to the question I will report you! Thanks :)

KonstantinChe [14]

f(x) = 2x + 1

f(3) = 2*3 + 1 = 7

g(x) = x^2

g(7) = 7^2

g(7)= 49

f(g(x)) = 2(g(x) + 1

f(g(x)) = 2 x^2 + 1

f(g(3) = 2* 3^2 + 1

f(g(3) = 19

g(f(x)) = (f(x))^2

g(f(x)) = (2x + 1)^2

g(f(3)) = (2*3 + 1)^2 = (6 + 1)^2 = 49

f(g(x)) = 2*g(x) + 1

f(g(x)) = 2*x^2 + 1

f(g(3)) = 2*3^2 + 1

f(g(3)) = 2 * 9 + 1

f(g(3)) = 18 + 1

f(g(3) = 19

f(g(x)) = 2(g(x)) + 1

f(g(x)) = 2*x^2 + 1

4 0

2 years ago

-2 =5 - 7x how do you do this

Paul [167]

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6 0

2 years ago

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Verdich [7]

Answer:

$2\ cm^{2}$