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I am taking a history test tomorrow that has 10 questions, each is worth 10 points and I want to get at least 90 points.
Enya already has an extra 10 points from extra credit.
How many problems does Enya need to get right to meet her goal?
Let's make an equation!
And plus 10 because of my extra credit, is greater than or equal to 90!
x will represent how many problems I need to get right.
Ok, so x times 10 because it's 10 points per problem.
Now all we need to do it solve!
So, our equation is: 10x+10>=90 !
I need to get 8 or more questions right to meet my goal!
Let's use the circle method and do the problem in reverse:90-10=8080/10= 8x>=8
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