122+306 count by tens and ones to find the sum
1 answer:
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Let
n-------> the number of nickels
q------> the number of quarters
we know that
so
----> equation A
----> equation B
substitute equation B in equation A
Find the value of q
therefore
<u>The answer part a) is</u>
the number of nickels are and the number of quarters are
<u>the answer Part b) is</u>
The expressions that represents the number of quarters is