You are going to make a box out of cardboard. The box needs to measure 10 cm by 5 cm by 5 cm; 10% of the final product will be wasted in the cutting process. How much cardboard do you need?
Multiple choice answers are:
125 cm.
140 cm.
200 cm.
250 cm.
275 cm.
4 answers
I'll be glad to check your answer.
surface area of a six sided box:
10x5*2+5x5*2+10x5*2
which is 250. So you need the excess added,
Amount-waste=250
.9amount=250
amount=about 278cm^2
check: 278*.9=250
I wonder if the box is supposed to have a lid, I put that in the calculations.
10x5*2+5x5*2+10x5*2
which is 250. So you need the excess added,
Amount-waste=250
.9amount=250
amount=about 278cm^2
check: 278*.9=250
I wonder if the box is supposed to have a lid, I put that in the calculations.
"10x5*2+5x5*2+10x5*2"
waste amount=25 (10% of 250)
250+25=275
waste amount=25 (10% of 250)
250+25=275
alx is correct. it does say 25 percent of the final product, not as I read 25 percent of the material used...