Question

Help fan and medal :D

There are 20 pens in a package. Ten of the pens are black, 8 are blue, and the rest are red.

Which ratio represents the number of red pens to black pens

1 10

1 5

4 5

5 1

Answer 1

@steve816
@AloneS
@jabez177
@Eiwoh

Answer 2

hey Eiwoh

Answer 3

hello drummergirl..nice to see you again :) let see...

Answer 4

lol same

Answer 5

i don't know..but D looks like a good choice. Sorry if im wrong

Answer 6

lol

Answer 7

We are told that there are 20 pens in total. We know of `Ten of the pens are black and 8 are blue` but we are unknown as to how many pens are red. To find that we subtract 20 by the sum of black and blue pens.

\(\huge\bf{20-(10+8) = \color{red}{red}} \rightarrow 2 = \color{red}{red}\)

So we are finding the ratio of `red pens to black pens` we must write it out in this order. We know there are `10 black pens` and `2 red pens`.

\(\huge\bf{\color{red}{2}:10}\)

So we simplify by GCF. 10 is divisible by 2 so we divide each side by 2.

\(\huge\bf{\color{red}{1}:5}\)

This is the ratio.

Answer 8

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Eiwoh
i don't know..but D looks like a good choice. Sorry if im wrong
\(\color{#0cbb34}{\text{End of Quote}}\)


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