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Guest
Guest
Another problem I'm stuck on...*sigh* why am I even in Honors?
Jerry has recieved the following math test scores: 80, 75,79,86. His final exam is worth points and counts as 2 tests. What is the lowest score he can get to keep an average of at least 80 points? Explain your strategy.
I've done: (80+75+79+86 / 4) + (2x/2) >= 80
somehow...that equation isnt working
the 2x/2 is for taking the one 200 point test and making it into two 100 point test..like it said (didnt it?). :?
I wouldn't be surprised if youre looking at this and shaking your head thinking that I'm really dumb. It seems like a really easy problem but i just dont understand how to work it out.
Jerry has recieved the following math test scores: 80, 75,79,86. His final exam is worth points and counts as 2 tests. What is the lowest score he can get to keep an average of at least 80 points? Explain your strategy.
I've done: (80+75+79+86 / 4) + (2x/2) >= 80
somehow...that equation isnt working
the 2x/2 is for taking the one 200 point test and making it into two 100 point test..like it said (didnt it?). :?
I wouldn't be surprised if youre looking at this and shaking your head thinking that I'm really dumb. It seems like a really easy problem but i just dont understand how to work it out.