Henry is mixing concrete. To make concrete he needs to mix cement sand and gravel in the ratio 4:3:1 by weight. Henry needs to make 120 kg of concrete. He has 65kg of cement, 40kg of sand and 15kg of gravel. Which ingredient is Henry short of?

gravel

Step-by-step explanation:

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: