The cost of 5 bananas and 4 oranges would be $ 27.18
Answer:
The correct answer is 5.
Step-by-step explanation:
This is because if you divide 10 by 2 and -15 by 3
you get 5. Now to double check, you can do 10/5 and -15/5
This will give you 2, -3, which is the coordinates.
Hope this helps!
Let a=number of pens and b=number of pencils.
8a+7b=3.37; 5a+11b=3.10.
To eliminate a variable multiply the first eqn by 5 and the second by 8:
40a+35b=16.85, 40a+88b=24.80.
Subtract these equations: 53b=7.95, b=$0.15. So 5a=3.10-1.65=$1.45, a=$0.29.
Pens are $0.29 each and pencils $0.15.