Answer: 7.5kg
Step-by-step explanation:
Since Bill made mortar mix and he used 24kg of sand and 5kg of cement. This means that for 1 kg of cement, (24/5) = 4.8 kg of sand is used.
Therefore, when he uses 36kg of sand, the kg of cement used will be:
= 36 / 4.8
= 7.5 kg
Therefore, he'll use 7.5kg of cement and 36kg of sand.
Answer:
60 cm^3
Step-by-step explanation:
Surface Area = lwh
SA = 2 x 5 x 6
SA = 10 x 6
SA = 60
Answer:
x=-1
Step-by-step explanation:
3x+12-8x=19+2x (combine liked terms)
-5x+12+19=2x (move variable to the left-hand side and change its sign)
-5x-2x+12=19 (combine liked terms)
-7x=19-12 (divide both sides of the equation by -7)
x=-1
Perimeter r / perimeter s = side r/ side s
Perimeter r = 72 cm
Perimeter s = 36 cm
Side r = ???
Side s = 6 cm
72/36 = side_r/ 6 Cross multiply
72 * 6 = 36 * side_r
432 = 36 side_r Divide by 36
432 / 36 = side_r
12 = side_r
Answer:
She tips the waiter 25.5 dollar.
Step-by-step explanation:
If the dinner cost 85 you multiply by .30 and you get 25.5. If you wanna find out whole cost after subtract 25.5 from 85.