Answer:b
Step-by-step explanation:
Took quiz
<span>Let x=number of nickels in the piggy bank
(2x+3)=number of dimes in the piggy bank
(3x-3)=number of quarters in the piggy bank
.05x+.10(2x+3)+.25(3x-3)=14.55
.05x+.20x+.30+.75x-.75=14.55
</span>
<span>
1.00x=14.55+.45
x=15
2x+3=33
3x-3=42
The number of nickles in the piggy bank would be 15.
</span>
<span><span>The number of dimes in the piggy bank would be 33
</span></span>
<span>The number of quarters in the piggy bank would be 42. </span>
Hope I was able to help and that this was useful to you!!! :)
186... uh..hope this helped c:
Answer:
(0.4, 5.2)
Step-by-step explanation:
Wherever you see a y in the first equation, put in 3x + 4
2x + 3x + 4 = 6 Combine like terms
5x + 4 = 6 Subtract 4 from both sides
5x + 4 - 4 = 6 - 4 Combine like terms.
5x = 2 Divide both sides by 5
5x/5 = 2/5 Do the division
x = 0.4
====================
<em><u>Solve for y</u></em>
y = 3x + 4
y = 3*0.4 + 4
y = 1.2 + 4
y = 5.2
Solution
(0.4 , 5.2)
