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4 years ago

The average rainfall for each week for the

Mathematics

1 answer:

Bezzdna [24]4 years ago

8 0

Answer:

7/3

Step-by-step explanation:

in decimal 2.3

in fraction 2 1/3

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3x+y=5 2x-2y=-2 solve by using process of elimination (find both x and y)

Bingel [31]

Answer:

The value of 'x' is 1 and 'y' is 2. So, the point is (1, 2).

Step-by-step explanation:

Given:

The given pair of linear equations are:

$3x+y=5\\2x-2y=-2$

In order to solve by elimination method, we have to eliminate any one variable using mathematical operations. Let us eliminate 'y'.

Multiplying the first equation by 2 and adding the result to the second equation. This gives,

$(3x+y)\times 2=5\times 2\\6x+2y=10\\2x-2y=-2\\+\\----------\\8x+0=8\\8x=8\\x=\frac{8}{8}=1$

Now, the value of 'y' can be calculated by plugging in 1 for 'x' in the first equation. This gives,

$3(1)+y=5\\3+y=5\\y=5-3\\y=2$

Therefore, the value of 'x' is 1 and 'y' is 2.

The solution is (1, 2).

6 0

4 years ago

Decrease £313 by 62%

Helga [31]

Answer:

194.06

Step-by-step explanation:

313×0.62=194.06

5 0

3 years ago

A machine called Feynman, produces output, that is 5 times its input followed by an increase of 2. Another machine called Maxwel

olganol [36]

I honestly think that the answer is a

7 0

3 years ago

Read 2 more answers

How to simplify x+9+1+3x and

maxonik [38]

Answer/Step-by-step explanation:

[1] x+9+1+3x

Add the numbers

x + 10 +3x

Combine like terms

4x+10

Common factor

2(2x+5)

Solution = 2(2x+5)

.............................................................................................................................................

[2] 5a+6c+2a+3c

Combine like terms

7a+6c+3c

Combine like terms

7a+9c

Solution = 7a + 9c

...............................................................................................................................................

[3] 5n+6m+3n

Combine like terms

8n + 6m

Rearrange terms

6m + 8n

Solution = 6m+8n

.............................................................................................................................................

[RevyBreeze]

5 0

2 years ago

The graph represents function 1, and the equation represents function 2:

kvv77 [185]

Answer:

Please check the explanation.

Step-by-step explanation:

We know that the slope or rate of change of the function can be:

positive

negative

zero, or

undefined

Function 1

From the function 1 graph, it is clear that the graph is a horizontal line. We must note that the horizontal line has a slope or rate of change zero. The reason is that the horizontal line can not rise vertically. i.e. y₂-y₁=0

so using the slope formula

Rate of change = m = y₂-y₁ / x₂-x₁

Taking two points (x₁, y₁) = (0, 4), (x₂, x₁) = (1, 4)

Rate of change = m = 4-4 / 1-0

Rate of change = m = 0/1

Rate of change = m = 0

Thus, the rate of change of function 1 is zero.

Function 2

We know the slope-intercept form of linear equation is

$y = mx+b$

where m is the rate of change or slope of the function and b is the y-intercept

Given the function

$y = 8x+12$

comparing with the slope-intercept form i.e. y = mx+b

Therefore, the rate of change of function 2 = m = 8

Conclusion

The rate of change of function 1 = 0

The rate of change of function 2 = 8

8 - 0 = 8

Therefore, function 2 has 8 more rate of change of function than the rate of change of function 1.

6 0

3 years ago