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PIT_PIT [208]
3 years ago
13

Josh takes a load of dress shirts to the dry cleaners. The amount he pays for dry cleaning (

Mathematics
2 answers:
Rina8888 [55]3 years ago
8 0

Answer:

\frac{3}{2} is the constant of proportionality in terms of the cost per shirt .

Step-by-step explanation:

Constant of proportionality

Let us assume that x is proportional to y .

x \propto y

x = ky

Where k is the constant of proportionality .

As given

Josh takes a load of dress shirts to the dry cleaners.

The amount he pays for dry cleaning f is given by the equation f = \frac{3}{2} s

where s is the number of shirts.

Compare f = \frac{3}{2} s with x = ky .

Thus

Cost\ per\ shirt =\frac{f}{s}= \frac{3}{2}

k = \frac{3}{2}

Therefore \frac{3}{2} is the constant of proportionality in terms of the cost per shirt .

saw5 [17]3 years ago
7 0
The amount he pays is the number of shirts times 3 / 2 (or 1.5) 
unless the equation is f=3/(2s) where the cost would then be the number of shirts times two, divided by three
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A 6th grade math teacher can grade 15 homework assignments in 24 minutes. If he works at the same rate, how long should it take
coldgirl [10]

Answer:

57.6

Step-by-step explanation:

If hê works 15 grades in 24 min how long hê will take to finish 36 grades

15 grades= 24 min

36 grades=?

Cress cross

15grades?=24min x 36grades

15 grades?=864 min grades

15grades/15grades?=864mingrades/15grades

?=57.6 min

4 0
3 years ago
20. Find the measure of each interior angle AND each exterior angles of the following regular polygons. Show your work.
Lelu [443]
Pentagon has 5 angles. 360/5= 72 degrees
16-gon has 16 angles. 360/16= 22.5 degrees
dodecagon has 12 angles. 360/12= 30 degrees
The measure of the exterior angle of any regular polygon is 360 divides by the number of sides the polygon has.
4 0
3 years ago
The local kennel has 3 spots for cats to every 5 dogs. if the local kennel has a total of 72 spots for both cats and dogs, then
aliina [53]
3:5
5+3= 8
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5 0
3 years ago
This is converting to polar form, I need help and the answer too.
Mila [183]

Answer:

2 cis (7/6 pi)

Step-by-step explanation:

r = sqrt( a^2 + b^2)

r = sqrt (-sqrt(3) )^2 + (-1)^2)

   = sqrt(3 +1)

    = sqrt(4)

    = 2

theta  = arctan (b/a)

theta = arctan (-1/-sqrt(3))

theta = 30

but this is in the third quardrant  -a and -b

so add 180

theta = 210 degrees

convert this to radians

210 * pi/180 = 210/180 * pi = 21/18 * pi = 7/6 * pi


r cis (theta)

2 cis (7/6 pi)

7 0
3 years ago
9) Nancy starts a race at the start line and she is running 3 meters per second. Juan starts the same race 3 meters ahead of Nan
Travka [436]

Given:

Nancy is running 3 meters per second.

Juan starts the same race 3 meters ahead of Nancy but he is going at 2 meters per second.

To find:

The equations for Nancy and Juan.

Solution:

Let x be the number of seconds.

Nancy is running 3 meters per second. So, the total distance covered by Nancy in the race is

y=3x

Juan starts the same race 3 meters ahead of Nancy but he is going at 2 meters per second. So, the total distance covered by Juan in the race is

y=3+2x

Therefore, the equations of Nancy and Juan are y=3x and y=3+2x respectively.

5 0
3 years ago
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