Answer:
= 298/11
Step-by-step explanation:
3x + 5y = 2 | ×2 |
2x - 4y = 20 | ×3 |
6x + 10y = 4
6x - 12y = 60
____________--
22y = -56
y = -56/22
y = -28/11
3x + 5y = 2 | ×4 |
2x - 4y = 20 | ×5 |
12x + 20y = 8
10x - 20y = 100
_____________+
22x = 108
x = 108/22
x = 54/11
5x - y
= 5(54/11) - (-28/11)
= 270/11 + 28/11
= 298/11
total units of ration = 4 +7=11
so, ratio would be (4*33)/11 : (7*33)/11
12 : 21 is the answer.
Did you understand?
So you can multiply $61.70 x 4 and there for your answer is $246.80
I think we’re talking about the 15, the smallest number for 15 would be 3. Because 3 x 5 = 15
Answer:
The value of k is 240
Step-by-step explanation:
Or, 120 - 80 = 
Or, 40 = 
So. k = 40 × 6 = 240
Hence The value of k is 240 Answer
