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Neporo4naja [7]
3 years ago
10

In 2005, 120 students at Lincoln High School

Mathematics
1 answer:
Mrrafil [7]3 years ago
3 0

Answer:

The average increase in the number of smart

phones per year is 45

Step-by-step explanation:

Given that :

Number of students who had phones in 2005 = 120

Number of students who had phones in 2010 = 345

(345 - 120) / 5

225 / 5

= 45

Hence, average increase in number of smartphones per year = 45

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Answer:

Slope is 5/3

y-intercept = -3

y = 5/3x - 3

Step-by-step explanation:

To find the slope, take to coordinates and use the equation below

m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}

7-2 = 5

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Now you have your slope which is 5/3

Then take the slope and input it into point slope form to get your y-intercept.

y-y₁=m(x-x₁)

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y-2=5/3x-5

add two to both sides to get Y by itself

y = 5/3x - 3

now you have your y-intercept, which is -3

Then check your answer by inputing two different coordinates for X and Y

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6 0
3 years ago
Consider this equation: {x-9 - 2x+2 = 1 Which is an equivalent equation after combining like terms? 8 X-11=1 3 -= -4 X-71 3 8 -7
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Answer:

  • B. -4/3x - 7 = 1

Step-by-step explanation:

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8 0
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<em>a = uk/b</em>

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<em>u = ab/k</em>

<em>uk = ab</em>

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Alja [10]

Answer:

900

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Trabajando el 10% de 9000

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