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Semenov [28]
3 years ago
15

Malcom’s Tee Shirt & Jacket Company is to produce a new line of rain coats. There are fixed costs of $570 to set up for prod

uction, and variable costs of $30 per jacket. Write an equation that can be used to determine the total cost, C(x), encountered by Malcom’s Company in producing x rain coats, and use the equation to find the total cost of producing 118 rain coats.
a) $4110b) $4102c) $4090d) $4122e) none
Mathematics
1 answer:
Dimas [21]3 years ago
6 0

Answer:

C(x)=30x+570

a) $4110

Step-by-step explanation:

Let x represent number of rain coats and C(x) represent total cost to produce new line of rain coats.

We have been given that the fixed costs of $570 to set up for production, and variable costs of $30 per jacket.

The cost of x jackets would be 30x.

The total cost of x jackets would be variable cost of x jackets plus fixed costs that is $570.

Therefore, the total cost of producing x rain coats would be C(x)=30x+570.

To find the total cost of producing 118 rain coats, we will substitute x=118 in the above equation as:

C(118)=30(118)+570

C(118)=3540+570

C(118)=4110

Therefore, the total cost of producing 118 rain coats is $4110 and option 'a' is the correct choice.

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30 random samples of high school students were asked if they played a sport for their high school. Each sample was 20 students.
Ludmilka [50]

Answer:

<em>a. This option is correct</em>

<em>b. This will be true only if we take the </em><em>mode</em><em> as the best representative value </em>

c. <em>This is a correct choice</em>

<em>d. This is not a correct choice</em>

Step-by-step explanation:

<u>Statistics</u>

We are given a dot plot representing 30 random sample proportions of high school students about their sports activities. Based on the data extracted from the plot, we can make some basic conclusions and, less accurately, some predictions.

From the data plot we can see that the following proportions were obtained, along with their absolute frequencies:

0.05 -> 3

0.10 -> 8

0.15 -> 7

0.20 -> 5

0.25 -> 4

0.30 -> 2

Let's select which of the following options are correct

a. A sample proportion of 0.20 means that 4 of 20 high school students responded that they play a sport.

The ratio between the sport playing students to the total of high school students is

\displaystyle \frac{4}{20}=\frac{1}{5}=0.20

Thus, this statement is correct.

b. The best prediction for the proportion of all high school students that play a sport is 0.10.

This will be true only if we take the mode as the best representative value for the whole dataset. Personally, I don't like to trust the mode as a good central tendency result, I'd prefer the mean instead.

c. The mean of the 30 sample proportions calculated to the nearest hundredth is 0.16

Computing the mean of the sample proportions

\displaystyle \bar x=\frac{\sum x_i.f_i}{\sum f_i}

\displaystyle \bar x=\frac{0.00\cdot 1+0.05\cdot 3+0.10\cdot 8+0.15\cdot 7+0.20\cdot 5+0.25\cdot 4+0.30\cdot 2}{1+3+8+7+5+4+2}

\bar x\approx 0.16

<em>This is a correct choice</em>

d. The shape of the sample distribution is fairly symmetrical

We can see the distribution if left-skewed because its peak value is not at the mean value. The mode and the mean are fairly different, thus this choice is not correct

5 0
3 years ago
Read 2 more answers
Double points plz help
tangare [24]
When x is 100 y will be 122
5 0
3 years ago
Which equation represents a line perpendicular to the line shown on the graph?
xenn [34]

Answer:

the third one...............

5 0
3 years ago
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From exterior point L of circle O, tangent segments LP and LQ are drawn such that the measure of angle PLQ is 60 degrees. If a r
GenaCL600 [577]
Refer to the attached diagram for help.

All radii of a circle are congruent.
Tangent segs LP and LQ are congruent. (Tangent segs drawn to a circle from the same point are congruent)

Because of this we can establish OPLQ as a kite.

OPLQ is a kite implies that OL bis. angle PLQ.
An angle bis. divides an angle into 2 congruent, parts, so angle OLP must be 30 degrees.

Since tangents form right angles with the radius, angle OPL is right.

Now we have a right triangle OPL with a 30-degree angle. The other angle must be 60 degrees because of the no-choice theorem. (180-(30+90)) = 60
We know that OP is 6 because it is a radius of circle O. How do we use that to find OL? Well, we <em>could</em> use trig, but you might recognize this as a special triangle!

The side opposite the 30 degree angle = x
The side opposite the right angle = 2x

So OL must be 12!

8 0
3 years ago
Please help me I suck at math
daser333 [38]

Answer:

1) 27/128 ft³

2) 40cm³

Step-by-step explanation:

1) The diagram is a cuboid not a prism.

Volume of the shape = Length × Breadth × Height

Given the following dimension

Length = 3/8 ft

Breadth = 3/4 ft

Height = 3/4 ft

Volume = 3/8 × 3/4 × 3/4

Volume of the shape = 27/128 ft³

2) Volume of a rectangular prism = Base Area × Height

Given base area = 12cm²

Height of the prism = 3 1/3 cm

Volume = 12 × 3 1/3

Volume = 12 × 10/3

Volume = 4 × 10

Volume of the prism = 40cm³

5 0
4 years ago
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