MATHEMATICS MIDDLE SCHOOL

choose the equation below that represents the line that passes through the point (-2, -1) and has a slope of 5

Answers

Answer 1

Answer:

point slope form y-y1=m(x-x1)

y-(-1) =5(x-(-2))

y+1 = 5(x+2)

to get it into slope intercept form

distribute

y+1 = 5x+10

subtract 1 from each side

y = 5x+9

Answer 2

Answer:

Answer:

y = 5x + 9

Step-by-step explanation:

The equation of a line in its standard form can be written as:

y = mx + c

where y is the y coordinate,

m is the gradient of the line,

x is the x coordinate; and

c is the y intercept.

We will substitute the values of x and y coordinates and the slope to find the y intercept.

y = mx + c

-1 = (5) (-2) + c

c = 9

Therefore, the equation of the line which passes through the point (-2, -1) and has a slope of 5 will be y = 5x + 9.

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4.27 repeating as a fraction

Answers

it's actually 47/11 if the .27 is repeating :)

4 27/100 or 427/100 is going to be the answer

A square pyramid has a base area of 36ft2 the pyramids total surface area is 144ft2 what is the area of each triangular face?

Answers

so a square pyramid is like the pyramids in egypt so
surface area of pyhraid=base+4 triangles
surface area=144
baswe=36
subsitute
144=36+4 times triangles
subtract 36 from both sides
108=4 triggles
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a group of friends went to lunch. The bill before sales tax and tip was $37.50. A sales tax of 8% was added. The group then tips 18% of the amount after the sales tax was added. what was the amount in dollars of the sales tax?

Answers

Sales Tax amount: 3 dollars

Altogether they paid $47.50

If you would like an explanation, do not hesitate to ask me!

Large trucks have 18 wheels. Vans have 4 wheels. Miguel sat at the window at the truck stop and counted 84 vehicles in the parking lot. He figured out that there were 1,343 wheels. How many trucks and vans were in the parking lot?

Answers

18L+4v=1344
-4(L+v=84)
18L+4v=1344
-4L+-4v=-336
14L=1008
L=72
84-72=12
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A set of data already has the values 11, 14, 23, and 16. What value would have to be added to the set for the mean of thefive numbers to be 18?
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