Asked by spirit73

I still don't understand can someone help me?



the everton college store paid $1553
for an order of 42 calculators. the
store paid $9 for each scientific calculator. the others, all graphing calculators, cost the store $56 each. how many of each trupe of calculator was ordered?

the store ordered:
how many scientfic calculators?

graphing calculators?
Answered by Reiny
how about...

let the number of scientific calculators be x
then the number of graphing calc's is 42-x

then 9x + 56(42-x) = 1553
9x + 2352 - 56x = 1553
-47x = -799
x = 17
42-x = 25

So they bought 17 scientific and 25 graphing types.

check : 17(9) + 25(56) = 1553
Answered by Lilly
Reiny is mostly correct how I think about it is I think about what I know write it down I see what they are asking me and try to figure it out. Try to make it easier for you to understand
There are no AI answers yet. The ability to request AI answers is coming soon!