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3 years ago

The dryer cleaning fee for 3 pairs of pants is $18 what is the constant of proportionality

Mathematics

2 answers:

Gennadij [26K]3 years ago

7 0

6:1 it is just 18:3 simplified

mezya [45]3 years ago

3 0

18 for the price
3 for the amount

So 18:3

Then you need to simplify it, so it ends up being 6:1

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Help! locus points!

Liula [17]

Answer:

Circle X with radius 2 cm.
Either of two lines parallel to AB.

Step-by-step explanation:

1. The definition of a circle is all the points in a plane that are at some radius r from a given point (the circle center). That is what you have, with a radius of 2 cm.

2. Parallel lines are the same distance apart everywhere. Each line will have two parallel lines at some given distance from it, one on each side. Here, the separation distance from AB is 1 cm, so your locus of points is the two lines parallel AB that are 1 cm from it on either side.

5 0

4 years ago

A cylindrical jar has a radius of 5 inches and a height of 9 inches. The jar is filled with marbles that have a volume of 20 in3

Andreyy89

Answer:

a. Volume = π15.02 9.0=6361.73

b. I am very sorry, I don't know

Step-by-step explanation:

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3 years ago

Completion times for a reading test are normally distributed with

Tema [17]

Answer:

47.72% of the completion times is between 73.4 and 88.2 minutes

2.28% of the completion times is at most 58.6 minutes

Step-by-step explanation:

A reading test are normally distributed with a mean time of 73,4 minutes and a standard deviation of 7.4 minutes.

$\mu = 73.4 minutes$

Standard deviation = $\sigma = 7.4 minutes$

A)Approximately what percent of the completion times is between 73.4 and 88.2 minutes i.e.P(73.4<x<88.2)

Formula : $Z=\frac{x-\mu}{\sigma}$

At x = 73.4

$Z=\frac{73.4-73.4}{7.4}$

Z=0

Refer the z table for p value

p value = 0.5

At z = 88.2

$Z=\frac{88.2-73.4}{7.4}$

Z=2

Refer the z table for p value

p value =0.9772

So,P(73.4<x<88.2)=0.9772-0.5=0.4772

So, 47.72% of the completion times is between 73.4 and 88.2 minutes

B)Approximately what percent of the completion times is at most 58.6 minutes i.e. $P(X\leq 58.6)$ ?

$Z=\frac{x-\mu}{\sigma}$

$Z=\frac{58.6-73.4}{7.4}$

Z=-2

Refer the z table for p value

p value =0.0228

So,2.28% of the completion times is at most 58.6 minutes

4 0

3 years ago

Find the equation of a line passing through the points (2,1) and (5,10) in slope intercept form.

guajiro [1.7K]

Answer:

y=3x-5

Step-by-step explanation:

Slope intercept form is y=mx+b

m represents slope

b represents y-intercept

In the picture, 3 replaces m, so 3 is the slope of the line.

When (2,1) and (5,10) are graphed, the line intercepts -5 on the y axis.

-5 is the y-intercept.

So, (2,1) and (5,10) in slope-intercept form is $y=3x-5$

4 0

3 years ago

PLEASE HELP ME!!!

VashaNatasha [74]

Answer:

$350 * D \geq 1400$

$D\ge 4$

This means that the family must travel for at least 4 days.

Step-by-step explanation:

Given

$Rate = 350\ miles\ daily$

$Distance = 1400\ miles\ (atleast)$

Required

Determine and solve the inequality

The number of days is represented with D

So:

On any D number of days, the family would have covered a distance of 350 * D miles

If the total distance is at least 1400, then the inequality is:

$350 * D \geq 1400$

[The term "At least" is used to represent greater than or equal to]

$350 * D \geq 1400$

Divide through by 350

$\frac{350 * D}{350} \ge \frac{1400}{350}$

$D \ge \frac{1400}{350}$

$D\ge 4$

This means that the family must travel for at least 4 days.

5 0

3 years ago