Question

suppose davions grade on the test was x .if AnnMarie grade was 10 less than twice davions grade, what us an expression for AnnMaries grade?

Answer 1

2x -10

1) Gathering the data

Davions grade: X

Ann Marie: 2x -10 10 less than twice Davions grade

2) To find out the Ann Maries grade, let's firstly find out the value of x. We can do it by equating those expressions:

2x -10 = x Subtract x from both sides

2x - x = 10

x=10

So now, we can plug into Ann Marie's formula the quantity of x

Ann Marie: 2x -10

2(10) -10

20-10

10 Ann Marie's grade

3) Hence, the expression that gives us Ann Marie's grade is 2x -10