Bill goes to the market to buy some apples. The cost of the apples that he likes is $1.25 per pound. If he has $5 to spend on apples, how many pounds (x) can he buy?
Set up an equation to solve the problem.
1.25x = 5
1.25/5 = x
5x = 1.25
1.25 + x = 5
Which algebraic equation represents the words:
Twenty percent of your grade is 80 points. What was your grade?
20x = 80
.20x = 80
.20 = 80x
20/80 = x
0.20x = 80
Which algebraic equation represents the words:
Twenty percent of your grade is 80 points. What was your grade?
20x = 80
.20x = 80
.20 = 80x
20/80 = x
0.20x = 80
Bill goes to the market to buy some apples. The cost of the apples that he likes is $1.25 per pound. If he has $5 to spend on apples, how many pounds (x) can he buy?
Set up an equation to solve the problem.
1.25x = 5
1.25/5 = x
5x = 1.25
1.25 + x = 5
1.25x = 5
0.20x = 80
The algebraic equation that represents the statement "Twenty percent of your grade is 80 points. What was your grade?" is:
0.20x = 80
In this equation, "x" represents the total grade, and 0.20 represents twenty percent (which is equivalent to 20/100 or simply 0.20). Therefore, multiplying 0.20 by "x" gives us 20% of the grade. Setting it equal to 80, we can solve to find the value of "x," which represents the total grade.