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serious [3.7K]
3 years ago
8

4x + 9y = 4

Mathematics
1 answer:
saw5 [17]3 years ago
7 0

Answer:

x=101/65, y=-16/65. (101/65, -16/65).

Step-by-step explanation:

4x+9y=4

9x+4y=13

----------------

9(4x+9y)=9(4)

-4(9x+4y)=-4(13)

------------------------

36x+81y=36

-36x-16y=-52

----------------------

65y=-16

y=-16/65

4x+9(-16/65)=4

4x-144/65=4

4x=4+144/65

4x=404/65

x=(404/65)/4=101/65

x=101/65, y=-16/65.

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Given the diagram below, find the value of MQR.
hoa [83]

Answer:

The answer is MQR= 48 degrees

Step-by-step explanation:

I got this answer from process of elimination. The first option was 48 degrees so I divided 48 by 3 and got 16 then I applied to (2x + 16): (2(16)+16) and got 48 which comfirmed my answer. Also I took the test and it was right so I know its correct.

5 0
3 years ago
A number multiplied by 5, subtracted from the sum of 14 and eight times the number
Andrews [41]

Answer:

5m - (14 • 8)

Step-by-step explanation:

pretty sure this is correct

3 0
2 years ago
What is the GCF of the two numbers in the expression (24 + 30)? 2 4 5 6
sweet [91]

Answer:

The greatest Common factor is 6

Step-by-step explanation:

6x4=24

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4 0
3 years ago
Read 2 more answers
Veronica spent 3/4 hour reading each day for 7 days. In all, how much time did she spend reading?
alexgriva [62]

Answer:

21/4 or 5 and 1/4 hours

Step-by-step explanation:

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8 0
3 years ago
Choose the equation that represents a line that passes through points (-1, 2) and (3, 1).
maw [93]

Answer:

The answer is x + 4y = 7

Equation of a line is y = mx + c

Where m is the slope

c is the y intercept

Slope of the line between the points

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Equation of the line using point

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7 0
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