solve an equation for each situation

Question

You want to buy a bouqet of yellow roses and baby's breath for $16. The baby's breath costs $3.50 per bunch, and the roses cost $2.50 each. You want one bunch of baby's breath and some roses for your bouquet. How many roses can you buy?

Answer 1

Total = Baby's breath cost (number of bunches) + Rose cost (Number of roses)

Let x = number of roses

 

$16.00= ($3.50)(1)+ $2.50(x)

 

Subtract 3.5 from both sides

12.50= 2.5x

 

Divide both sides by 2.5

x= 5

 

You can buy 5 roses