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NikAS [45]
3 years ago
12

I don’t know how to do these I need help

Mathematics
1 answer:
Citrus2011 [14]3 years ago
7 0

k = 15 is the answer!!!!!!

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9-3 divided by 1/3 + 1 =
Black_prince [1.1K]

Answer: The answer is 1

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I have trouble understanding word problems. May I please have help with number 15? Thank you very much!
guapka [62]
Basically you do fractions side by side. so, 6/3=15/h and then cross multiply to get your answer so that would give you 3h=80, then divide 80÷3
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Find the slope of the line passing through the points (2,5) and (8, −4)
brilliants [131]
Slope = -4-5/8-2
Slope = -9/6
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What conclusion can be made based on this multiplication problem?
Elena L [17]

Answer:

I believe it is twenty-one is 7 times the size of 3

Step-by-step explanation:

4 0
3 years ago
Write an equation in slope-intercept form of the line that passes through (-1, 4) and (0, 2).
arsen [322]

Answer:

y=-2x+2

Step-by-step explanation:

Hi there!

Slope-intercept form: y=mx+b where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)

<u>1) Determine the slope</u>

m=\frac{y_2-y_1}{x_2-x_1} where the two given points are (x_1,y_1) and (x_2,y_2)

Plug in the given points (-1, 4) and (0, 2)

=\frac{2-4}{0-(-1)}\\=\frac{-2}{0+1}\\=\frac{-2}{1}\\= -2

Therefore, the slope of the line is -2. Plug this into y=mx+b:

y=-2x+b

<u>2) Determine the y-intercept</u>

y=-2x+b

Recall that the y-intercept is the value of y when the line crosses the y-axis, meaning that the y-intercept occurs when x is equal to 0.

One of the given points is (0,2). Notice how y=2 when x=0. Therefore, the y-intercept of the line is 2.

Plug this back into the equation:

y=-2x+2

I hope this helps!

6 0
3 years ago
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