Let x be the amount of nickels and y be the amount of quarters in a jar. Totally there are 87 coins, then x+y=87.
Since nickel is 5 cent coin and quarter is 25 cent coin, then 5x+25y=1255 ($12.55=1255 cents). Solve this system:x=87-y and 5(87-y)+25y=1255.
435-5y+25y=1255,
25y-5y=1255-435,
20y=820,
y=820÷20,
y=41,
x=87-41=46.
Answer: 46 nickels and 41 quarters.
Answer:
3.2
Step-by-step explanation:
5.9 - 2.7 = 3.2
**difference means subtract**
Answer:
x=-5.143 or
Step-by-step explanation:
Subtract 75 from 3 and you get -72
-72=4x
x=-5.143
<span>this word problem can be turned into the equation...
$10 * .955 + $10 = Final price</span>
Answer:
y=3/4x
Step-by-step explanation: