What's 15/.75 and 99/162? Show works please. :)

QUESTION POSTED AT 14/12/2019 - 05:32 PM

Answered by admin AT 14/12/2019 - 05:32 PM

15/.75 
= 1500/75
= 20

99/162
= (99/9)/ (162/9)
= 11/18

Hope this helps~
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Related questions

Help me understand please ;-; Which shows the equation in standard form? 6y - 12 = -3x Which shows the equation in standard form? 10 - 2(x - y) = 3x + 1

Standard form for first one is
ax+by=c

6y-12=-3x
add 3x both sides
3x+6y-12=0
add 12
3x+6y=12


second one
distribute (don't forget double negative y)
10-2x+2y=3x+1
minus 3x both sides
10-5x+2y=1
minus 10 both sides
-5x+2y=-9



the equations are
3x+6y=12
-5x+2y=-9

ANSWERED AT 20/01/2020 - 01:17 PM


QUESTION POSTED AT 20/01/2020 - 01:17 PM

A researcher finds that 15% of all commuters in a metropolitan area take the train to work. The researcher polls 250 people in the area and asks them whether they take the train to work. What is the number of trials for this binomial experiment?

Answer:

Number of trials are 250.

Step-by-step explanation:

A researcher finds 15% of all commuters in a metropolitan area take the train to work.

The researcher polls 250 people in the area to ask them whether they take the train to work or not.

We have tell the number of trials for this binomial experiment.

Researcher will do 250 trials to confirm whether they take the train work and this irrespective of their response.

ANSWERED AT 20/01/2020 - 01:16 PM


QUESTION POSTED AT 20/01/2020 - 01:16 PM

A movie rental store charges a membership fee of $10.00 plus $1.50 per movie rented. What is a possible domain that shows the cost to a member of renting movies? A. The domain is all integers. B. The domain is all even integers. C. The domain is all integers 0 or greater. D. The domain is all integers 10 or greater.

The domain is all integers 10 or greater. This is because the working equation for the statement is movie renting = 10 + 1.5 x(movie renting). With that equation there is a minimum of 10.

ANSWERED AT 20/01/2020 - 01:07 PM


QUESTION POSTED AT 20/01/2020 - 01:07 PM

Which combination of transformations can you use to show that one shape is congruent to another? dilations and reflections/ reflections and stretches /rotations and translations/ reflections, dilations, and translations /rotations, translations, and dilations

The correct answer to this is:
ROTATIONS AND TRANSLATIONS

Reflection and rotation can also be used but since their both grouped with dilations, they can't be used. When dilation is used, the size of the shape is changed and congruence won't be possible anymore . That's why the answer is the first option.

ANSWERED AT 20/01/2020 - 01:03 PM


QUESTION POSTED AT 20/01/2020 - 01:03 PM

Wendy can wash a car twice as fast as Jason. When they work together, Wendy and Jason can wash a large van in 2 hours. How many hours would it take Jason to wash the van by himself?

X= number of hours would it take Jason to wash the van by himself.
2x=number of hours would it take Wendy to wash the van by herserlf.

we calcaulate the fraction of  work by Jason during one hour

x hours-----------------------------1 work
1 hour----------------------   fraction of work during one hour.

fraction of work during one hour=(1 hour * 1work) / x hours=1/x


we calculate the fraction of work by Wendy during one hour.
2x hours-----------------------------1 work
1 hour----------------------   fraction of work during one hour.

fraction of work during one hour=(1 hour * 1work) / 2x hours=1/2x

We can suggest this equation:
2 hours(fraction of work by Jason during one hour + fraction of work by Wendy during one hour)=1 work

2(1/x + 1/2x)=1

least common multiple=2x
2(2+1)=2x
2(3)=2x
6=2x
x=6/2
x=3

answer: 3 hours would ti take Jason to wash the van by himself.


ANSWERED AT 20/01/2020 - 12:59 PM


QUESTION POSTED AT 20/01/2020 - 12:59 PM

4. A shipping company is considering which of these two boxes to use for shipping. Each box costs the same amount of money to ship, so the one with greater volume is the more cost-effective and the better one to use. Which box is the more cost-effective for the company to use? Show all your work. PLEASE HELP GUYS #Finals

The second one because the formula for volume is length times width times height so for the first box if you do 4*3*2 you would get 12 which is the volume and for the second box if you take 2.5*2*5 you'd get 25 so the second box has the greater volume meaning it's more cost effective and it is the better box

ANSWERED AT 20/01/2020 - 12:57 PM


QUESTION POSTED AT 20/01/2020 - 12:57 PM

A home improvement store sold wind chimes for $30 each.A costumer signed up for a free membership card and recieved a 5% discount off the price.Sales tax of 5% was applied after the disscount.What was the final price of the windchime?Show your work.

5%=.05
$30 x .05 = $1.5
Take $1.5 off of the $30.
After discount, the price was $28.5.
Sales price needs to be added.
$28.5 x .05 = $1.4
$28.5 + $1.4 = $29.9
$29.9 is the final price of the  wind chime.

ANSWERED AT 20/01/2020 - 12:55 PM


QUESTION POSTED AT 20/01/2020 - 12:55 PM

4. A shipping company is considering which of these two boxes to use for shipping. Each box costs the same amount of money to ship, so the one with greater volume is the more cost-effective and the better one to use. Which box is the more cost-effective for the company to use? Show all your work. PLEASE HELP QUICK #Finals

For a box shown in the images, to see the more cost-effective option, one has to simply compare which of the two boxes has the large volume. This can be done by multiplying the length, width, and the height to find the volume. This is shown below:

Box A:

Volume = 2 * 3 * 4 = 24 ft^3

Box B:

Volume = 2 * 5 * 2.5 = 25 ft^3

Therefore, the second box is the more cost-effective of the two.

ANSWERED AT 20/01/2020 - 12:55 PM


QUESTION POSTED AT 20/01/2020 - 12:55 PM

The table shows the median home prices in Florida. What is the equation of a trend line that models a relationship between time and home prices? Use the equation to predict the median home price in 2020. Year Median Price($) 1940 $20,200 1950 $39,900 1960 $50,400 1970 $62,800 1980 $89,100 1990 $98,700 2000 $119,000

Answer:

A) Price= 1617*Year - 3.116e+006;     B) 150340$ By 2020

Step-by-step explanation:

We have a data set of 7 x, y pairs, this data set can be modelled as line, applying a linear regression calculator we found that the trend line can be modelled as Price= 1617*Year - 3.116e+006  

Attached you will find the regression results where x is the year variable and Y is the price. If we now plug year=2020 in the equation we have:

Price=1617*2020-3.116e+006 = 150340$

ANSWERED AT 20/01/2020 - 12:53 PM


QUESTION POSTED AT 20/01/2020 - 12:53 PM

What type of association does the graph show between x and y?

We say that it has a negative correlation association with each other the variables x and y. Hoped that helped! !!!

ANSWERED AT 20/01/2020 - 12:52 PM


QUESTION POSTED AT 20/01/2020 - 12:52 PM

Cory earns $20 for every lawn he mows and $9 for every hedge he trims. He uses the expression 20x + 9y to keep track of his earnings. Part A: Identify the coefficients and variables in the expression. (3 points) Part B: How many terms are in the expression, what are they, and how do you know? (4 points) Part C: Which term in the expression shows the total earned from trimming hedges?

Part A: 20 shows $20 which Cory earns by mowing one lawn. 9 shows $9 which he earns by trimming one hedge. x shows the number of lawns. y shows the number of hedges. Part B: There are two terms in this expression. 20x which shows the total earning of Cory by mowing lawns. 9y which shows his earning by trimming hedges. It can be judged by the description of rates explained in part A. Part C: From explanation given in Part C, we can easily see that the expression 9y is used for the total earned from trimming hedges.

ANSWERED AT 20/01/2020 - 12:45 PM


QUESTION POSTED AT 20/01/2020 - 12:45 PM

Samuel is 1/2 as old as his brother.in seven years he will be 2/3 as old as his brother will be . find their present ages. Show each step

B = 2S
B + 7 = 1.5(S+7)

-----
2S+7 = 1.5S + 10.5
0.5S = 3.5
Samuel is 7
Bro is 14

ANSWERED AT 20/01/2020 - 12:44 PM


QUESTION POSTED AT 20/01/2020 - 12:44 PM

The rate traveled from Amarillo to Austin by a bus averages 65 miles per hour. The bus arrived in Austin after eight hours of travel. An automobile averages 80 miles per hour. Using the inverse variation relationship, show what the time would be for the automobile to complete the trip.

If it takes 8 hours for a bus with an average velocity of 65mph to travel from Amarillo to Austin then,
d = 65 (8) = 520 miles

The distance from Amarillo to Austin (or vice versa) is 520 miles.

If the function to get the distance traveled by the automobile is given by:
d(x) = 80 t
Then, the inverse variation relationship would be
d-1(x) = t = d / 80
Since d = 520
t = 520 / 80
t = 6.5 hours

It takes 6.5 hours for the automobile to complete the trip

ANSWERED AT 20/01/2020 - 12:42 PM


QUESTION POSTED AT 20/01/2020 - 12:42 PM

The amount a car dealership earns for selling a car is directly proportional to the price of the car. The table shows this relationship. What is the constant of proportionality? Car price ($) (x) 20,000 30,000 40,000 Amount earned ($) (y) 1000 1500 2000

I think its 2 because if you divide 20,000 over 1000 you get 2. If you do that for the other values, you would also get 2.

ANSWERED AT 20/01/2020 - 12:40 PM


QUESTION POSTED AT 20/01/2020 - 12:40 PM

570 mL = ? oz,show work

Conversion from milliliters to ounces can be done using the following relation: 1 mL = 0.033814 ounce.

Given 570mL, we multiply it to the amount of ounces as shown in the relation. This is done below:

570 mL * (0.033814 oz / 1 mL) = 19.274 oz

ANSWERED AT 20/01/2020 - 12:38 PM


QUESTION POSTED AT 20/01/2020 - 12:38 PM

A candy bar box is in the shape of a triangular prism. The volume of the box is 3,240 cubic centimeters. A triangular prism is shown with base of triangle labeled 24 cm, sides of the triangle labeled 15 cm, and length of the box equal to 30 cm. Part A: What is the height of the box? Show your work. (5 points) Part B: What is the approximate amount of cardboard used to make this candy box? Explain how you got your answer.

Answer:

Part A - 9 cm; Part B - 1836 cm²

Step-by-step explanation:

Part A:  The volume of a triangular prism is given by the area of the base (area of the triangle) multiplied by the length of the box.  To find the area of a triangle, we use the formula A = 1/2bh; this gives us

V = 1/2bhl

Using the information we have gives us

3240 = 1/2(24)(h)(30)

3240 = 360h

Divide both sides by 360:

3240/360 = 360h/360

9 = h

Part B:  We are looking for the surface area of this prism.

There are two triangular sides, each with a base of 24 and a height of 9.  Their areas are:

A = 1/2bh = 1/2(24)(9) = 108 sq cm each.  For two of them, this makes

108(2) = 216 sq cm

There are two rectangular sides whose dimensions are 15 by 30; their areas are

A = 15(30) = 450.  For two of them, this makes

450(2) = 900 sq cm.

There is one rectangular side whose dimensions are 30 by 24.  Its area is

A = 30(24) = 720 sq cm.

This makes the total surface area

216+900+720 = 1836 sq cm.

ANSWERED AT 20/01/2020 - 12:37 PM


QUESTION POSTED AT 20/01/2020 - 12:37 PM

A sample of 50 11th graders were asked to select a favorite pattern out of 6 choices. the following display shows what their favorite color patterns were. blue on gray 4 green 9 pink polka dots ? purple 11 red and orange stripes 9 yellow 3 the counts have been recorded in the accompanying table according to pattern and the number of students who selected the pattern. what is missing value in the table?

There a total of 50 11th graders who had to choose between 6 different color patterns. Among the 6 patterns, only the students who had chosen the pink polka dots are missing. To look for this missing value, simply subtract 50 to the sum of all of the known values of the 5 other colors to obtain the number of students who had picked pink polka dots. This is shown below:

50 - 4 - 9 - 11 - 9 - 3 = x
X = 14

Therefore, there were 14 students who chose pink polka dots.

ANSWERED AT 20/01/2020 - 12:33 PM


QUESTION POSTED AT 20/01/2020 - 12:33 PM

Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x?

For future reference, use a * to show the multiplication sign because in math x is a variable. 7*2 = 9 + x

Now multiply 7*2= 14

14 = 9 + x

Now subtract 9 from both sides to isolate the x

5 = x or x= 5

ANSWERED AT 20/01/2020 - 12:31 PM


QUESTION POSTED AT 20/01/2020 - 12:31 PM

Wendy is paid $12 per hour and plans to work between 30 and 35 hours per week. Identify the independent and dependent quantity in the situation. Find reasonable domain and range values.

Answer:

Part a) The independent quantity is the variable x (the number of hours) and the dependent quantity is the variable y (total paid)

Part b) Domain 30\leq x\leq 35

Part c) Range \$360\leq y\leq \$420

Step-by-step explanation:

Let

x------> the number of hours

y-----> total paid

The linear equation that represent this situation is

y=12x

so

Part a)

The independent quantity is the variable x (the number of hours)

The dependent quantity is the variable y (total paid)

Part b) Find the domain

The domain is the interval--------> [30,35]

All real numbers greater than or equal to 30 hours and less than or equal to 35 hours

30\leq x\leq 35

Part c) Find the range

For x=30

find the value of y

y=12(30)=\$360

For x=35

find the value of y

y=12(35)=\$420

The range is the interval-------> [\$360,\$420]

All real numbers greater than or equal to \$360 and less than or equal to \$420

\$360\leq y\leq \$420

ANSWERED AT 20/01/2020 - 12:22 PM


QUESTION POSTED AT 20/01/2020 - 12:22 PM

The seasons graph below shows the average daily temperature over the period of a year. explain how each labeled section of the graph relates to the four seasons

Answer:


Step-by-step explanation:

Given : the seasons graph below shows the average daily temperature over the period of a year.

To Find: explain how each labeled section of the graph relates to the four seasons

Solution:

Considering the graph

"A"is representing Winter (Jan - Feb) when the temperature is the lowest.

"B" is representing Spring when the temperature is increasing.

"C"is representing Summer when the average temperature increase, then decrease.

"D" is representing Autumn when the average temperature is decreasing.


ANSWERED AT 20/01/2020 - 12:21 PM


QUESTION POSTED AT 20/01/2020 - 12:21 PM