Answer:
x=78°
y=78°
z=102°
Step-by-step explanation:
x=78°
y=78°
z=180-78=102°
From the picture, we can see that
which means
Answer:
The annual income of A and B are in the ratio 3 : 4. If the income of A is 3x, the income of B is 4x. Their annual expenditure is in the ratio 5:7, if A's expenditure is 5y, B's expenditure is 7y. Each of them saves 15000 per month.
Step-by-step explanation:
=> 3x - 5y = 15000 and 4x - 7y = 15000
3x - 5y = 15000
=> y = (3x - 15000)/5
Substituting...
I think its 38............
