Question

Larry answered 8 out of every 10 questions correctly. The test had 70 questions. How many correct answers did Larry give?---What represents the "x" or unknown in this problem?

Answer 1

Representation of fractional numbers

Larry's rate of succesful questions is 8/10.

Then must find how many times is divided 70 in 10 questions

70/10 = 7

if there were a 100% succesful then 70 rresulted

but the rate is 8/10 , then multiply 8x 7 = 56 succesful questions for Larry.