Nikos sold muffins at his club's bake sale. he spent $28.50 on supplies. he sold his muffins for $0.75 each, and made a profit of $36.75. write and solve an equation to find out how many muffins he sold.

  87

Step-by-step explanation:

Given :  Nikos spent $28.50 on supplies.

He sold his muffins for $0.75 each.

Profit he made  =   $36.75

Total money he made = Money he made in supplies + Profit he made

= $28.50 + $36.75

= $ 65.25

Then, the number of muffins he made = (Total money he made ) ÷ ( Cost of each muffin)

=( $ 65.25)  ÷ ($0.75 )

= 87

Hence, the number of muffins he made = 87.

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6