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mote1985 [20]
3 years ago
15

Calculate the total cost of the order: Ham and Cheese, Salad, Cola, 5.5% sales tax, and 10% tip.

Mathematics
1 answer:
Zigmanuir [339]3 years ago
5 0
C. $8.96 is the answer 
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3) they will have the same solution because the first equation of system B is obtained by adding the first equation of system a
Andrej [43]

The two systems have the same solution.

The correct answer is 3) since the first equation of system B is indeed the addition of the first equation of system A and 4 times the second equation of system A.

Answer: 3)

8 0
3 years ago
Which equation is true when r = 7 ?
jeka57 [31]

Answer:

7 = 49 ÷ r

Step-by-step explanation:

To find the equation that is true when r = 7, we need to find a number after the equals sign that is a multiple of 7.

Multiples of 7:  

7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77...

Therefore, the only answer option in which the number after the equals sign is a multiple of 7 is:

7 = 49 ÷ r

To prove this, input r = 7 into each of the equations:

   6 = 30 ÷ r

⇒ 6 = 30 ÷ 7

⇒ 6 ≠ 4.285... ← incorrect!

   7 = 54 ÷ r

⇒ 7 = 54 ÷ 7

⇒ 7 ≠ 7.714... ← incorrect!

   7 = 49 ÷ r

⇒ 7 = 49 ÷ 7

⇒ 7 = 7 ← correct!

   9 = 72 ÷ r

⇒ 9 = 72 ÷ 7

⇒ 9 ≠ 10.285... ← incorrect!

8 0
2 years ago
A trapezoid is a polygon that has exactly one pair of parallel sides.
Anestetic [448]

false                                               <em><u>dsddsfsdfsfdfdsfdsdfsdfsdsfdfsfdsdfsdfsdfsfdsfd</u></em>

4 0
3 years ago
Read 2 more answers
If g(x) = -2x + 9, what is the value of x<br> when g(x) = 3?
MissTica

Answer:

x = 3

Step-by-step explanation:

1. Plug 3 into g(x)

3 = -2x + 9

2. Subtract 9 on both sides

-6 = -2x

3. Divide by -2 on both sides to get x by itself

x = 3

I hope this helped :)

7 0
3 years ago
I need help i have a answer in mind but it is not one of the options
VikaD [51]
8x+40+124= 180

8x + 164= 180

8x = 16

x = 2
D is the answer to the question
8 0
3 years ago
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