Ateacher had 18 red pens. if the ratio of red pens to blue pens she owned was 3: 5 how many pens did she have total?

total = 48

Step-by-step explanation:

Red/Blue =  3/5  

From this you conclude, assuming that the only types of pen colors are red and blue:

Red/Total  =  3/3 + 5

18/Total   = 3/8

hey there!

if she's saving for six months, let's divide the total number we need for the trip by six, dividing it into the amount that needs to be saved for each month.

500 ÷ 6 =

she needs to save at least this amount each month, so we should use this symbol: ≥

let x be the amount she saves each month.

your final answer is x ≥

hope this !