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Nostrana [21]
2 years ago
10

63 POINT!!!!! GUYS, I NEED HELP WITH PLSSSSS NO CHEAT THANK YOU!!

Mathematics
1 answer:
nikdorinn [45]2 years ago
6 0

Answer:

  236

Step-by-step explanation:

We assume the cost is a linear function of the number of lessons. That means the slope is the same everywhere.

Let (lessons, cost) = (x, y). We have (4, 84), (8, 160), (12, y3).

  (y2 -y1)/(x2 -x1) = (y3 -y2)/(x3 -x2)

  (160 -84)/(8 -4) = (y3 -160)/(12 -8)

  76 = y3 -160

  y3 = 160 +76 = 236

The cost will be $236 for 12 lessons.

__

The cost function is ...

  y = 19x +8 . . . . for x lessons

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Step-by-step explanation:

Divide $21.25 by $125

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Make a graph

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3 years ago
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Please help me due tomorrow
Tom [10]

<u>Given </u><u>:</u><u>-</u>

  • The slope of the line through points (3,y) and (4,10) is 7 .

<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u>

  • The value of y .

<u>Solution</u><u> </u><u>:</u><u>-</u>

As we know that the slope of the line is difference of ordinate divided by the difference of absicca as ,

\longrightarrow m = y -10 / 3 - 4

\longrightarrow 7 (-1) = y -10

\longrightarrow -7 = y -10

\longrightarrow y = 10 -7

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3 years ago
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Answer:

<h2><em>y</em><em>=</em><em>-</em><em>4</em></h2>

<em>Sol</em><em>ution</em><em>,</em>

<em>X=</em><em>4</em>

<em>Now</em><em>,</em>

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<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>

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