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Nookie1986 [14]
3 years ago
9

Evaluate the following expression using the values given:

Mathematics
2 answers:
MrMuchimi3 years ago
6 0
Replace each letter with it's value, so:
= (5*-2) + (-3*2) + 3
= -10 -6 +3
= -13
Natali5045456 [20]3 years ago
3 0

Answer:

-13

Step-by-step explanation:

You start by combining like terms

Then separate the unlike terms

Then a dd those like terms and use the opposite of subtraction to get your answer

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3 years ago
5-6n=2n+5 <br>Solve for n
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7 0
3 years ago
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Lisa drove 7,000 miles in 70 days. She drove the same number of miles each day.
inysia [295]

Answer: I'd assume its B 100 miles each day.

Step-by-step explanation:

Because 70 x 100 is 7,000 which is equal to the amount of miles stared in the question

5 0
3 years ago
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I need help with 5-9
Goryan [66]

Answer:

5) x = 1, y = -3

6) x = -20, y = 2

7) infinite solutions

8) no solutions

Step-by-step explanation:

5)

y = 5x - 8

y = -6x + 3

5x - 8 = -6x + 3

11x = 11

x = 1

y = 5 - 8

y = -3

6)

2x + 10y = -20

-x + 4y = 28

2x = -20 - 10y

x = - 10 - 5y

-x = 28 - 4y

x = -28 + 4y

-10 - 5y  = -28 + 4y

-10 + 28 = 4y + 5y

18 = 9y

2 = y

2x + 20 = -20

2x = -40

x = -20

7)

this has infinite solutions because one equation is a simplified version of the other

8)

this has no solutions because 5 does not equal -5

9)

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3 0
2 years ago
If two angles are supplementary and one angle measures 47°, what is the measure of the other angle? 43° 133° 53° 47°
Rama09 [41]

Answer:

x = 133

Step-by-step explanation:

Supplementary angles add to 180 degrees. Call the unknown angle x

47 +x = 180

Subtract 47 from each side

47-47+x =180-47

x = 133

3 0
3 years ago
Read 2 more answers
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