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3 years ago

The ratio of red marbles to blue marbles is 3 to 7 she has a total of 80. how many red and blue marbles

Mathematics

1 answer:

atroni [7]3 years ago

5 0

This means that 3/10 are red and that 7/10 are red, so 7/10(80) = 56blue marbles and 3/10(80)= 24red marbles

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If f(x)=3x-2,find f(8)-f(-5)

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To find both f(8) and f(-5), we will need to plug in their values for x and solve for each. Then, we can subtract them to find the final answer.

Finding f(8):

f(8) = 3(8) - 2

f(8) = 24 - 2

f(8) = 22

Finding f(-5):

f(-5) = 3(-5) - 2

f(-5) = -15 - 2

f(-5) = -17

Subtracting f(8) and f(-5):

f(8) - f(-5)

22 - - 17

22 + 17

Hope this helps!! :)

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fomenos

Answer:

Step-by-step explanation:

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