A] The expression of the number of $20 will found as follows:
given that the number of $10 is x,
The total number of denominations is 22, then the number of $20 will be given by the equation:
22-x
b] The total number of each denomination will be evaluated as follows:
total amount of money will be given by the equation:
10*x+20(22-x)=300
solving for x:
10x+440-20x=300
10x-20x=300-440
-10x=-140
thus
x=-140/(-10)
x=14
thus the number of $10 denominations was 14 and the number of $20 denominations was 22-14=8
Answer:
The amount of carpet needed in Room Z should be the same as the carpet needed in both Room X and Room Y.
Step-by-step explanatio
The ratio is 6.
Hope it helps
Step-by-step explanation:
The solution can be found by identifying the point of intersection of the 2 graphed lines.
As we can see, they intersect each other at the point (2, -3). This is our solution for the equations.
72/6= 12. This means you divide 96 by 12. This is equal to 8. So the final answer is 6/8
