vicsmi6191
01.06.2020 •
Mathematics
Adam is going to make concrete
He is going to use
180 kg of cement
375 kg of sand
1090 kg of stone
Cement, sand and stone are sold in bags
1 bag cement 1 bag sand 1 bag stone
25kg 22.5kg 50kg
Adam already has
8 bags of cement
19 bags of sand
20 bags of stone
Work out what bags he needs to buy to make the concrete
Working must be shown
Solved
Show answers
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Ответ:
90 kg of stone
Step-by-step explanation:
Adam has 8 x 25 = 200
19 x 22.5 = 427.5
20 x 50 = 1000
He has enough cement and sand
He needs 1090 - 1000 = 90 kg of stone
He needs 2 bags of stone
Ответ:
The product is ax+bx+ay+by using FOIL method ..
Hope this helps you =×