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2 years ago

Need help with this one

Mathematics

1 answer:

densk [106]2 years ago

3 0

The unit rate of the cost of different weight of pistachios as shown on the graph is $1.25 per pounds.

A unit rate is a rate where the second quantity is one unit . Therefore, the unit rate of the linear graph can be found as follows;

(2, 2.5)(4, 5)

unit rate = y₂ - y₁ / x₂ - x₁

x₁ = 2

x₂ = 4

y₁ = 2.5

y₂ = 5

unit rate = 5 - 2.5 / 4 - 2 = 2.5 / 2 = $1.25 per pounds

learn more on unit rate here: brainly.com/question/11258929

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Let D = the amount of money Deanna has after x games.

We know Deanna started with $15 and she spends 0.75 per game, so we can make the following equation:
D = 15 - 0.75x

Let L = the amount of money Lisa has after x games.

We know Lisa started with $13 and she spends 0.50 per game, so we can make the following equation:
L = 13 - 0.5x

The question is asking how many games need to be played for L and D to be equal, so just equate L and D and solve for x:

D = L
15 - 0.75x = 13 - 0.5x
15 - 13 = -0.5x + 0.75x
2 = 0.25x
2 = (1/4)x
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Therefore they need to play 8 games each to have the same amount of money.

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Answer:

y = 3x + 2

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<u>First find what are the 2 pair that given by slope =3</u>

First consider A. (3, 11) and B. (3, 9)

Tan α = \fraction(11-9)(3-3)

It is undefine.

Next consider A. (3, 11) and BC (5,15)

Tan α = \fraction(15-11)(5-3)

Next consider A. (3, 11) and D. (2,4)

Tan α = \fraction(11-4)(3-2)

Next consider B (3, 9) and C. (5,15)

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Step-by-step explanation:

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Answer:

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