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lesya692 [45]
3 years ago
5

Two models of laptop computers are shipped in crates. One crate weighs 650

Mathematics
1 answer:
ioda3 years ago
5 0
Weight=smallertotalweight+largertotalweight

smallertotalweight=weight times how many
largertotalweight=weight times how many

lets call them s and l
smaller and larger

650=50s+75l
and
550=100s+25l
simplfiy the m all by dividing by 5

130=10s+15l
110=20s+5l
divide by 5 again

26=2s+3l
22=4s+l

we can eliminate the s's

multiply first equatn by -2 and add to first

22=4s+l
<u>-52=-4s-6l +</u>
-30=0s-5l

-30=-5l
divide both sides by -5
6=l

input back
22=4s+l
22=4s+6
minus 6
16=4s
divide 4
4=s

each smaller model weighs 4 pounds
larger weighs 6 pounds
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