Question

Please help!! Am a parent and trying to understand this to help my son.

Kelly has a collection of red and blue marbles.
The ratio of red to blue marbles is 3:7.
She has a total of 80 marbles.
Draw and label a tape diagram to show how many red marbles she has
and how many blue marbles she has.

Answer 1

the ratio of red and blue marbles 3:7

the total number of red and blue marbles 80

now ,

total number of marbles

÷

100

80÷100=8

then,

3 *8=24 ,7*8=56

therefore,she has 24 red marbles and 56 blue marbles