What are you asking me ? Do you have a picture I can look at ?
First, you want to solve for the equation for this problem, would be:
0.05N + 0.10D = 20.50
While N = The amount of nickels, and D = The amount of dimes.
Since N = 164, and D = 123. It would add up to 287 coins. 164 + 123 = 287.
Now that you have the number for those two variables, solve the equation for when N = 164, and D = 123.
0.05N + 0.10D = 20.50
<span>0.05(164) + 0.10(123) = 20.50
</span><span>8.2 + 12.3 = 20.50
</span>20.50 = 20.50
So, there is 164 nickels, and 123 dimes for your answer.
<em>I hope this helps! </em>
<em>~ Notorious Sovereign</em>
2.4 pieces of rope
If each peice is 5 feet long and she only needs 2.4 pieces to make 12 yds.
What is the question that you need help with?
<h3><u>The system of linear inequalities to model the situation are:</u></h3>

<em><u>Solution:</u></em>
Let "x" be the time spent in dog walking job
Let "y" be the time spent in car wash attendant
Given that,
<em><u>You can work at most 20 hours next week</u></em>
"at most" means "less than or equal to" 20
Therefore,

Also given that,
Your dog- walking job pays $7.50 per hour
Your job as a car wash attendant pays $6 per hour
<em><u>You need to earn at least $92 to cover you weekly expenses</u></em>
"at least" means "greater than or equal to" 92
Thus, a inequality is framed as:


Thus eqn 1 and eqn 2 is the system of linear inequalities to model the situation