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2 years ago

Please help I am stuck!

Mathematics

1 answer:

cestrela7 [59]2 years ago

4 0

Note:

Slope intercept form: y = mx + b

Standard slope form: Ax + By = C

Point slope form: (y-y1) = m(x - x1)

m = slope.

10.

Form: Slope intercept form

Slope: 6/7

y-intercept = 1

11.

Form: Point slope form

Slope = 9

y -intercept = -13

y - 5 = 9 (x-2)

y - 5 = 9x - 18

y = 9x - 18 + 5

y = 9x - 13

12.

Form: Standard slope form

25. Sarah is correct, Katie is incorrect. Both graph have right slope -2/5, but Katie has incorrect y-intercept.

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Please help, i can't figure this out and im ready to pull my hair out!!!

Nat2105 [25]

Answer:

I'm sorry I don't know the equation, but she walks 3 mph.

Step-by-step explanation:

We know that the answer is asking for speed, which needs both distance and time, so we also need both. Which is where the 9 mph is used. 9 mph means its a difference. b means biking mph, w means walking mph, sooo ----->>> b=w+9, and the difference in the 1st equation is 36, which means the first equation is 4 times larger than the b=w+9, so she walked 48 miles, as well as walked 12 miles in 4 hours. Divide then distances by 4, and you get 12 miles and 3 miles in one hour. Or 12 mph & 3 mph, which fits into 12=3+9. So she walks 3 miles per hour.

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2 years ago

A movie theater has been charging $10.00 per person and selling about 500 tickets on a typical weeknight. After surveying their

kifflom [539]

Answer:

$p(x) = -0.01x + 15$

Step-by-step explanation:

Given

Let x represent the number of tickets, and p the charges

$(x_1,p_1) = (500,10)$

A reduction of 50c gives an increment of 50 tickets.

This gives:

$(x_2,p_2) = (500+50,10-0,5)$ ---- $50c = \$0.5$

$(x_2,p_2) = (550,9.5)$

Required

Determine the demand function

First, calculate the slope:

$m = \frac{p_2 - p_1}{x_2 - x_1}$

$m = \frac{9.5 - 10}{550-500}$

$m = \frac{-0.5}{50}$

$m = -0.01$

So, the equation is:

$p = m(x - x_1) + y_1$

$p = -0.01(x - 500) +10$

$p = -0.01x + 5 +10$

$p = -0.01x + 15$

Hence, the function is:

$p(x) = -0.01x + 15$

4 0

2 years ago

Mr.kelly pays $12,564 a year for rent. His rent is a constant amount each month. Which equation represents the amount he pays he

Nuetrik [128]

Answer:

1047 m = c

Step-by-step explanation:

Given : Mr.kelly pays $12,564 a year for rent. His rent is a constant amount each month.

To Find:Which equation represents the amount he pays her month if m=months and c=total rent paid for the year?

Solution :

Since he pays for a year (12 months) = $12,564

Since His rent is a constant amount each month.

He pays for one month = $\frac{12564}{12}=1047$

Thus the amount he pays per month $1047

If he pays for m months then the total amount(c) of rent for m months

⇒1047 m = c

Hence equation represents the amount he pays her month if m=months and c=total rent paid for the year: 1047 m = c

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2 years ago

What is the mode of these numbers: 10, 13, 800, 24 and 13

OverLord2011 [107]

A mode is the number that appears the most in a set of numbers. (I'm going to put the numbers in order before I solve this)

10, 13, 13, 24, 800

The answer is 13, because it appears more than any of the other numbers. :)

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)

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2 years ago

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malfutka [58]

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1 year ago