exam Maths Puzzle Numerical Ability

factor by grouping:

8x^2+18x-35

Read Solution (Total 0)

exam Other Question

8x-y=17
6x+y=11

Find the value of the variables......

Please help, I keep coming up with a fraction.

Thank you!

Amanda How many lbs of a 20% copper alloy must be mixed with 600lbs of a 30% copper alloy to make a 27.5% copper alloy?