Answer:
sure
Step-by-step explanation:
The easiest way to solve this is by elimination.
3x - y = 6
6x + y = 21
Since you have a negative and positive y with the same coefficients (1), they cancel, and you add the other terms so it would look like:
9x = 27
Then solving for x leaves you with x = 3
Then you take the x value of three and plug it into to either of the equations, so
3(3) - y = 6
9 - y = 6
subtracting 9
-y = -3
then dividing by -1
y = 3
so the solution is x = 3 y = 3 or (3,3)
Answer:
10
Step-by-step explanation:
Answer:
2500
Step-by-step explanation:
10,000/3,000=10/3
10x750=7500
7500/3=2500
Answer:
192
Step-by-step explanation:
Ratio : 3:7:8
Let the amount with Ahmad, Hassan and Shahril be 3x,7x and 8x
7x - 3x = 96
4x = 96
x = 96/4
x= 24
Amount donated by Shahril = 8x = 8 *24 = 192
