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This is Lenny. Lenny has a C - in his math class. Today, he has a test. His teacher said if he passed the test, she would raise his grade to a B+.
My mom is going to kill me if I don't get an A on my math test.
Lenny was very worried about his test because it was over translating statements into linear equations. Luckily for Lenny, his best friend, Sally, was very good at math.
On the way to school, Sally showed Lenny a few tricks.
Make sure you read the problem very carefully. It will ask you to find something in particular. Whatever you are trying to find will be your variable.
So if the problem says -Sammy needs seven more dogs to have ten. How many more dogs does Sammy need? You are trying to find how many more dogs she needs. So that would be your variable. I like to use x. 7+x=10. X would equal 3
The bell rang. Lenny hads four minutes before he had to take his test.
The test was a breeze for Lenny. Until he flipped it over. On the back page, the was one problem. Karen works for $6 an hour. A total of 25% of her salary is deducted for taxes and insurance. She is trying to save $450 for a new car stereo and speakers. How many hours must she work to take home $450 if she saves all of her earnings?
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