Lets do this like this:
X = number of quarters and y=number of dimes.
Now, we know that the total number is 35 and that the change adds up to 6.50.
One equation we can form is <span>x+y=35</span>Remember the total number of coins is 35.
The other equation is <span>25x+.1y=6.5</span>Because the number of dimes times their value plus the number of quarters times their value gives us a total of 6.5. Now we can solve for x or y easily in the first equation.
Solving for y like this:<span>y=35−x</span>We can substitute this into the other equation to obtain<span>.25x+.1(35−x)=6.5</span>This simplifies to<span>.15x+3.5=6.5</span><span>.15x=3</span><span>x=<span>20
I hope this can help you indeed</span></span>
Answer:
ans: 8
Step-by-step explanation:
t3×2 mean see the term in 3rd row and second column,
If I have 130 dollars and a plate is 6.00 what is the greatest amount of plates I can buy
Answer:
39.5
Step-by-step explanation:
From low to high:
36, 36, 37, 37, 38, 38, 39, 40, 40, 40, 45, 45, 45, 45
Median:
39, 40
(39 + 40)/2
79/2
39.5