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:
c or a i just did the test
Step-by-step explanation:
Answer:I THINK 180
Step-by-step explanation: HOPE THIS HELPS
Answer:
190 cm^2
Step-by-step explanation:
There are 2 congruent square bases: 5 cm * 5 cm * 2 = 50 cm^2
There are 4 congruent rectangular sides: 5 cm * 7 cm * 4 = 140 cm^2
Total surface area: 50 cm^2 + 140 cm^2 = 190 cm^2
D. X=1.24y
divide $6.20 by 5 and get 1.24, you can also do 14.88 divided by 12 and get 1.24.