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Dvinal [7]
3 years ago
9

There are two numbers that equals 52.2 is less.what is the answer

Mathematics
1 answer:
Ivan3 years ago
3 0
Set up an system:
x+y=52
x=y-2

Substitute in:
(y-2)+y=52
2y-2=52
2y=54
y=27

27-2=25

The answers are 27 and 25
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Which best describes the graphs of the line that passes through (−12, 15) and (4, −5), and the line that passes through (−8, −9)
konstantin123 [22]

Answer:

C) They are perpendicular lines.

Step-by-step explanation:

We first need to find the slope of the graph of the lines passing through these points using:

m =  \frac{y_2-y_1}{x_2-x_1}

The slope of the line that passes through (−12, 15) and (4, −5) is

m_{1} =  \frac{ - 5 - 15}{4 -  - 12}

m_{1} =  \frac{ - 20}{16}  =  -  \frac{5}{4}

The slope of the line going through (−8, −9) and (16, 21) is

m_{2} =  \frac{21 -  - 9}{16 -  - 8}

m_{2} =  \frac{21  + 9}{16  + 8}

m_{2} =  \frac{30}{24}  =  \frac{5}{4}

The product of the two slopes is

m_{1} \times m_{2} =  -  \frac{4}{5}  \times  \frac{5}{4}  =  - 1

Since

m_{1} \times m_{2} =  - 1

the two lines are perpendicular.

4 0
3 years ago
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20x+32y=0 <br> -50x-80y=0
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Answer:

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Step-by-step explanation:

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4 0
3 years ago
If you add 3 groups of 10 to 100, what is the total? How do you know?
Mazyrski [523]

Answer:

130

Step-by-step explanation:

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7. Seven times a number is equal to 12 more than 3 times the number.
Jet001 [13]

Answer:

7n = 12+ 3n

Step-by-step explanation:

The first thing to do is subtract 3n from 7n. This would get you 4n = 12. 4 times 3 equals 12, so n equals 3.

To check your answer. 21 = 12+9. sure enough it matches our answer

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Answer:

Step-by-step explanation:

sinθ = 63/√(16² + 63²) = 63/65

cosθ = 16/65

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