Step-by-step explanation:
cost of 1 kg of jam = x
cost of 1 kg of butter = y
3x + 2y = 29 .....1
6x + 3y = 54 .....2
.....1 × 2 both sides of equation
6x + 4y = 58 .....3
.....3 - ......2
y = 4
replace y = 4 in 1......
3x + 8 = 29
x = 7
Answer:
4/9
Step-by-step explanation:
Answer:
largest weight = 27.65 kg, lowest weight = 3.95 kg
Step-by-step explanation:
7:1 --> 7 + 1 = total of both ratio is 8
8 --> 31.6kg
1 --> 3.95 kg
so 7 --> 3.95 * 7 = 27.65 kg
so 1 --> 3.95 * 1 = 3.95 kg
Answer:
V=πr2h
3=π·32·7
3≈65.97345
V≈65.97
Step-by-step explanation: