a mixed seed packet is bought from a flower shop. on the packet it says "the number of white flowers to yellow flowers is approximately 3:5". If there are 160 seeds in the packet how many yellow flowers would you expect

Let w be the number of white flowerslet y be the number if yellow flowers

the number of white flowers to yellow flowers is approximately 3:5

sow divided by y = 3 divided by 5

w: y = 3:5

5 w = 3 y

w = 3y / 5

there are 160 seeds

so

y + w = 160 we replace the w in the equation w = 3y / 5

y + 3y / 5 = 160

5y + 3y = 160 * 5

8y = 800

y = 800/8 = 100 the number of yellow flowers

and w = 160 - y = 160 - 100 = 60 the number of white flowers