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3 years ago

Help please.. look at the image...

Mathematics

1 answer:

vova2212 [387]3 years ago

4 0

Answer: 195 = 35x + 20

Step-by-step explanation: This follows the y = mx + b formula.

y is your total, what the equation equals, and in this case it is your total cost of $195.

x is your independent variable, and time is always independent. When m is $35, you can plug in any hour (time!) for the x.

b is your initial value. This is what you start with, and in this case, it is your $20 equipment fee. You KNOW you have to pay that.

Hope this helps!

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6+4m-1=21<br><br> PLEASE HELP! I’m stuck on this question :/

Airida [17]

Answer:

m=4

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Step-by-step explanation:

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2 years ago

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Solve 2x+6 ≤ 10 or 2x + 8 > 20.

Firlakuza [10]

Answer:

Step-by-step explanation:

2x+6 ≤ 10 or 2x + 8 > 20

⇔ 2x ≤ 4 or 2x > 12

⇔ x ≤ 2 or x > 6

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1 year ago

Marquis is hungry for pizza! He has a choice between pizza A: Half of a 16 inch pizza or pizza B: A whole 10 inch pizza to himse

aliina [53]

Answer:

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Step-by-step explanation:

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2 years ago

In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where 0

uysha [10]

Answer:

a) A response of 8.9 represents the 92nd percentile.

b) A response of 6.6 represents the 62nd percentile.

c) A response of 4.4 represents the first quartile.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 5.9

Standard Deviation, σ = 2.2

We assume that the distribution of response is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) We have to find the value of x such that the probability is 0.92

P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.92$

Calculation the value from standard normal z table, we have,

$P(z$

$\displaystyle\frac{x - 5.9}{2.2} = 1.405\\x = 8.991 \approx 8.9$

A response of 8.9 represents the 92nd percentile.

b) We have to find the value of x such that the probability is 0.62

P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.62$

Calculation the value from standard normal z table, we have,

$P(z$

$\displaystyle\frac{x - 5.9}{2.2} = 0.305\\x = 6.571 \approx 6.6$

A response of 6.6 represents the 62nd percentile.

c) We have to find the value of x such that the probability is 0.25

P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.25$

Calculation the value from standard normal z table, we have,

$P(z$

$\displaystyle\frac{x - 5.9}{2.2} = -0.674\\x = 4.4172 \approx 4.4$

A response of 4.4 represents the first quartile.

4 0

2 years ago

Evaluate: 24-(-18)/(-6)

iren2701 [21]

Answer:

Step-by-step explanation:

24-(-18)/(-6)

= 24 - 3

= 21

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2 years ago