You have total coins for a total of $. . You only have quarters and dimes. Let represent the number of quarters and represent th
e number of dimes.
1 answer:
Answer:


Step-by-step explanation:
Given




Required
The number of each coin
The total coins can be represented as:


So, the worth of the coin is:

The equations to solve are:


Make d the subject in: 

Substitute
in 


Collect like terms


Solve for q


Substitute
in 


So:


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Answer:
Step-by-step explanation:
3(a+3)-6=21
<=>3a+9-6=21
<=>3a+3=21
<=>3a=18
<=>a=6
Answer:
Step-by-step explanation: see attachment
The simplest form of 204/72
=17/6
The original price of the dress is $75