First make the denominator into a 100... to do this you need to multiply the denominator (10) by 10... do the same with the numerator to give you 70. So your percent is 70% because it is a value over 100.
To solve, start with this equation So, 8 times 3 gives you how long they spent on art and 8 times 4 gives you how long they spent on science. So they spent... and...
