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Three friends each have some ribbon. Carol has 90 inches of ribbon, Tino has 4.5 feet of ribbon, and Baxter has 2.5 yards of ribbon. Express the total length of ribbon the three friends have in inches, feet, and yards.

Answer :

apologiabiology
convert all to inches
note:
1ft=12in
1yd=36in
90 inches=90 in
4.5ft=12*4.5=54in
2.5yd=2.5*36=90in

add
90+54+90=234in
divide by 36 to get rid of yards
6.5yds
6 yards and 0.5 yards left over
1yard=3ft
0.5yd=1.5ft
1ft and 0.5 left over
0.5 times 12=6

6yards, 1 ft, 6 inches

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