Answer:
n + q = 20
5n + 25q = 300 or 0.05n + 0.25q = 3
Step-by-step explanation:
You know that you have some nickels and some quarters, and together there are 20 coins. So if n represents the number of nickels, and q represents the number of quarters, you can use this equation:
n + q = 20
You also know that together the coins total three dollars. We know that a nickel is worth 5 cents and a quarter is worth 25. So if n and q still represent the number of each type of coin, we can use this equation:
5n + 25q = 300
or
0.05n + 0.25q = 3
The reason I said 300 in the first equation is because you are counting the number of cents. There are 300 cents in 3 dollars.
Answer
$7.80
Explanation
He bought 4 for $5.20. Divide 5.20 by 4 to get the price for one pack. Then multiply $1.30 by 6 to find the price of 6 packages.
Answer:
44 months
Step-by-step explanation:
If you subtract 24,000 by 2,000 it equals 22,000 then you divide that by 5 and have 44