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irina [24]
3 years ago
11

If a+3b=13 and a+b=5 the value of b is

Mathematics
1 answer:
hoa [83]3 years ago
7 0

Answer:b=4

Step-by-step explanation:

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PLEASE HELP ME ILL GIVE 5 STARS ASAP PLEASE
kicyunya [14]

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Step-by-step explanation:

because i do 8 x 2

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2 years ago
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What are the coordinates of the point (−1, 6) after a reflection across the x-axis?
Agata [3.3K]
The answer would be (-1,-6). Remember that the x-axis runs left to right and the y-axis runs up and down. Therefore, if you were to reflect it, just picture it being flipped over. If you go from (-1,+6) and you reflect it over the x-axis, both points are now in the bottom left quadrant where everything is negative. So, you get (-1,-6) The -1 doesn't change since it was already a -x value before and stayed in a negative area.
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3 years ago
A lorry travel at 30 km per hour.If it takes 3/4 hour for a certain journey,how long is that journey
DiKsa [7]

Answer:

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Step-by-step explanation:

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2 years ago
At a high school, 18% of the students play football and 6% of the students play football and baseball. What is the probability t
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We are given the fact that he plays football, so the probability of his being a football player is 100%.
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4 0
3 years ago
Consider line A whose equation is y = -10x + 8. If line B is perpendicular to line A and has a y-intercept at y = 3, what is the
r-ruslan [8.4K]

Answer:

C) . y=(1/10)x+3

Step-by-step explanation:

Given the equation of the line is y=-10x+8

It is in the form of y=mx+c where m is the slope of the line. Now on comparision we get m1=-10.

We knoew that two lines are perpendicular iff the product of their slopes is equal to -1.

m1*m2=-1

the slope of the recquired line =\frac{-1}{-10}=\frac{1}{10}

The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept

Given the y intercept of the recquired line (b)=3

The recquired line is

y=mx+b

y=(1/10)x+3

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