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astraxan [27]
3 years ago
12

You have nickels,dimes,and quarters to make a call that costs $0.75 how many different combinations of coins can you use to pay

for the call
Mathematics
1 answer:
Sveta_85 [38]3 years ago
4 0
17 possible combinations

1.
  3 quarters
2.  2 quarters, 1 dime, 1 nickel
3.  2 quarters, 3 nickels
4.  1 quarter, 5 dimes
5.  1 quarter, 4 dimes, 2 nickels
6.  1 quarter, 3 dimes, 4 nickels
7.  1 quarter, 2 dimes, 6 nickels
8.  1 quarter, 1 dime, 8 nickels
9.  1 quarter, 10 nickels
10.  7 dimes, 1 nickel
11.  6 dimes, 3 nickels
12.  5 dimes, 5 nickels
13.  4 dimes, 7 nickels
14.  3 dimes, 9 nickels
15.  2 dimes, 11 nickels
16.  1 dime, 13 nickels
17.  15 nickels
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alex41 [277]

Answer:

Step-by-step explanation:

3000   600

5000   1000

6000   1200

7500   1500

No it doesn't form a proportional relationship because yes, the ratio is constant AFTER the 5,000, you do need to hit the 5,000 first, and then it changes. So no, it's not proportional because it isn't constant throughout the entirety of the relationship. If you're just going based on the table in question, then yes it will be proportional since it doesn't have the 5,000 in it but if you're looking at it in it's entirety, no it's not.

7 0
2 years ago
Use addition to solve the linear system of equations. Include all of your work in your final answer. \(\left\{ \right.\) 3x-y=6
ad-work [718]

Answer:

Solving the given linear system, we get x = 1 and y = -3.

The solution set is: (1,-3)

Step-by-step explanation:

We need to solve the linear system of equations.

3x-y=6 \\y=x-4

We can write second equation y=x-4  as: -x+y=-4

Let:

3x-y=6--eq(1)\\ -x+y=-4--eq(2)

Now, Adding equation 1 and 2

3x-y=6\\ -x+y=-4\\--------\\2x+0y=2\\2x=2\\x=\frac{2}{2}\\x=1

So, we get x = 1

Now, put value of x in second equation to find value of y:

y=x-4\\Put\:x=1\\y=1-4\\y=-3

So, we get y = -3

Solving the given linear system, we get x = 1 and y = -3.

The solution set is: (1,-3)

4 0
3 years ago
Which of the following functions is not a sinusoid?
Nezavi [6.7K]
A sinusoid is cyclical and has a period or frequency.

y = sin x is a sinusoid, with a period of 2π.
y = √x is not a sinusoid.
y = cos x is a sinusoid with a period of 2π.

Answer: y = √x is not a sinusoid.
8 0
3 years ago
Read 2 more answers
PLEASE HELP
Vlad [161]
Do you need the answer now ?
3 0
2 years ago
The gcf of 135 225 270
rodikova [14]
The greatest common factor of 135 225 and 270 is 135/225 = 3/5

hope you found this helpful ;)
5 0
3 years ago
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