aa1000220
02.07.2019 •
Mathematics
Apainter uses 1.2 liters of the paint to cover 1m^2of the wall. how much paint will he need to cover 7m^2; ?
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Ответ:
The amount of paint used is 8.4 litres.
EXPLANATIONTo work this out, you need to times 1.2 by 7, to get the answer of 8.4 litres.
Hope this helps!
Ответ:
y = 13
Step-by-step explanation:
If Mr Gan packs 3 candies in each bag, he will have 4 extra candies left over. Therefore
3x + 4 = y
where 'x' represents the number of bags, and 'y' the total number of candies he has.
If Mr. Gan packs 5 candies in each bag, he will be short of 2 candies.
5x - 2 = y
To find the number of candies he has, we need to solve the system of equations ove:
3x + 4 = 5x - 2
6 = 2x
x = 3
Now, to find 'y':
5(3) - 2 = y
y = 13
Therefore, Mr. Gan has 13 candies.