Question

Maths Problem: Three nuts and six bolts have a combined mass of 72g. Four nuts and 5 bolts have a combined mass of 66g. Find the combined mass of one nut and one bolt

Answer 1

3n+6b=72
4n+5b=66 now multiply equation one by 4 and equation 2 by 3
12n+24b=288
12n+15b=198
now subtract equation one by 2
9b=90
b=10 put b=10 in any equation
3n+6*10=72
3n=72-60
3n=12
n=4
therefore nuts=4 and bolts =10

Answer 2

hope that helps ya miss chloris, by the way thers an option to give medals lol

Answer 3

LOL :D

Answer 4

keep rocking ;)

Answer 5

How about these? :(

Answer 6

its too small i cant see anything

Answer 7

How about now?

Answer 8

awesome , ya rock, hold on a sec

Answer 9

length and width are equal to each other therefore
4a=3b+1
2a-3=5-b
4a-3b=1
2a+b=8
multiply second eqation by 2
4a-3b=1
4a+2b=16 now subtract equation 1 from 2
-5b=-15
b=3
and a= 5/2