Answer:
40 hours
Step-by-step explanation:
200 divided by 20 = 10 x 4 = 40
Answer:
B
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Answer:
1 one is 9, 2nd is -2
Step-by-step explanation:
Answer:
Aiden has 25 nickels and 38 quarters
Step-by-step explanation:
Let x be the number of nickels and y be the number of quarters in Aiden's piggy bank.
Aiden has a collection of 63 nickels and quarters, so
x nickels are worth cents, y quarters are worth cents. If the total value of the coins is $10.75, then
From the first equation:
Substitute it into the second equation: