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Arturiano [62]
3 years ago
12

2 burgers for $6.25 each and 2 orders of fries for $1.25 each, with 11% tip. don't answer if you don't know it. Tell me the Tip

$ and the total amount including the tip.
Mathematics
1 answer:
Maru [420]3 years ago
6 0
Two burgers for 6.25 is just multiplied twice, which is 12.5. Two orders of fries for 1.25 is 2. So 2 plus 12.5 is 12.7, and 12.7 with a 11% tip is 14.09700. My bad if it’s incorrect, good luck
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A+b=77,a-b=13 care sun nr
STALIN [3.7K]
It's a simultaneous equation:
Steps:
1.Number the equations..

a+b=77 -1
a-b=13 -2

2. Choose what variable you want to use. In this case I would use the "b". Since the signs in front of the "b's" are different, add the two equations together

a + b = 77
+ + +
a (-b) = 13

Which gives;
2a = 90

Then solve to find a:
2a=90
a= 90/2
a=45

3.Then plug the "a" value into any of the original equations to find the "b" value. I would use equation 1 since the all the variables are positive.

a + b = 77
(45) + b = 77
b=77-45
b=32

4.Solution

a=45
b=32
3 0
3 years ago
100 POINTS PLEAS please help
Kamila [148]

Answer:

\textsf{A)} \quad 5u^3-2u^2+5u+8

Step-by-step explanation:

Given expression:

(-2u^3+5u-1)+(7u^3-2u^2+9)

Remove parentheses:

\implies -2u^3+5u-1+7u^3-2u^2+9

Collect like terms:

\implies -2u^3+7u^3-2u^2+5u-1+9

Combine like terms:

\implies 5u^3-2u^2+5u+8

6 0
2 years ago
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deff fn [24]
Slope = -1/4
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answer is C
5 0
3 years ago
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Elena L [17]

Answer:

x=-2

Step-by-step explanation:

4+8x=-12

-4       -4

8x = -16

/8      /8

x   =   -2

5 0
3 years ago
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madreJ [45]

Answer:

<em>All real solutions.</em>

Step-by-step explanation:

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All real solutions.

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