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torisob [31]
3 years ago
8

a piggy bank contained $14.55 in quarters dimes and nickels if there were three more than twice as many dimes as nickels and thr

ee less than three times as many quarters as nickels how many of each kind of coin was in the piggy bank
Mathematics
2 answers:
GarryVolchara [31]3 years ago
6 0
<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!!! :)
scZoUnD [109]3 years ago
4 0
<span>number of nickels in the piggy bank=15
number of dimes in the piggy bank=33
number of quarters in the piggy bank=42</span>
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vovikov84 [41]

First you had to add by seven from both sides of equation form.

-7+\frac{f}{2}+7=-1+7

Then simplify by equation.

\frac{f}{2}=6

Next, you multiply by two from both sides of equation form.

\frac{2f}{2}=6*2

And finally, simplify by equation.

6*2=12

2*6=12

12/6=2

12/2=6

f=12

Final answer: \boxed{f=12}

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

-Charlie

3 0
3 years ago
Solve the system of equations.<br> y= 2x + 3<br> y=x+3x+3
vaieri [72.5K]

Answer:

Undefined

Step-by-step explanation:

y=2x+3 cant equal y=4x+3

5 0
3 years ago
What is an equation of the line that passes through the point (3,-1) and is perpendicular to the equation y=-3x+2
Alex17521 [72]
If it is perpendicular then the slope of it will be:

-3 \times x = -1\\\\x = \frac{1}{3}

y = 1/3 x + b

-1 = (1/3)(3) + b

-1 = 1 + b

b = -2

The equation is:

y = \frac{1}{3}x - 2
8 0
3 years ago
Which number is equal to 5.03?
Vera_Pavlovna [14]
I can you be a little bit clear I don’t really understand the question.
7 0
3 years ago
I need help is anyone is out there and knows how to do this help.<br> HELP ASAP
Anna [14]

Answer:

Sorry i have no idea hahha

Step-by-step explanation:

Good luck

4 0
3 years ago
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