Calculator Use
Calculate the sale price you will pay for an item based on the type of discount in the sale promotion:
Percent off list price
Fraction off list price
Multi-item discount
You can also compare discounts to find the lowest price for an item. Enter a percentage off price, fraction off price, multiple items for the price of one or other "two-for" type discounts. Compare the final discounted price for each in the answer table.
Delete any pricing inputs you don't need for your calculations.
Sale Price Formulas and Calculations
Percent Off Price Formula
Discounted price = List price - (List price x (percentage / 100))
Example: Sale price is 25% off list price of $130
Convert 25% to a decimal by dividing by 100: 25/100 = 0.25
Multiply list price by decimal percent: 130*0.25 = 32.50
Subtract discount amount from list price: 130 - 32.50 = 97.50
With the formula:
130 - (130*(25/100)) =
130 - (130*0.25) =
130 - 32.50 = 97.50
25% off $130 is $97.50
Answer:
103.96
Step-by-step explanation:
100% (full price) --> 129.95
80% (retail price = 100%(full price) - 20% (discount)) --> x
x = 80*129.95/100 = 103.96
The polygons are similar. Solve for x.
scale factor from A to B = 3:5
Answer:
9
Step-by-step explanation:
if scale factor is 3/5, then
(x+12):35=3:5, ⇒
[tex]\frac{x+12}{35} =\frac{3}{5}; x=21-12; x=9[/tex]
HELP PLZZZ HELPPPP??.!.!!.!.
Answer:
eoeoeoeoooeoeooeoeoeooeoeoooe
Step-by-step explanation:
Which equation is represented by the graph?
y = -|x| + 2
y=-|x-2|
y=- |x|- 2
y=-|x+2|
Answer:
[tex]y = - |x| + 2[/tex]
Step-by-step explanation:
The graph is similar to Parabola. The transformation of graph is also similar to Parabola.
For B choice, the graph doesn't move by y-axis.
For C choice, the graph would have max-point at -2.
For D choice, similar to the B choice.
!EASY! A two-story hotel has 20,000 square feet of space on the first floor for rooms and 35,000 square feet of space on the second floor for rooms. An average room is 16 ft x 20 ft. How many rooms do you have available?
a) 150
b) 165
c) 171
d) 178
Answer:
The correct answer is: c) 171
Step-by-step explanation:
In order to find the number of rooms first of all we have to find the area of a single room
Given that the dimensions of room is:
16 ft * 20 ft
The area of a room is: 320 square feet
So
Area for rooms on first floor = 200000 square feet
The number of rooms on first floor will be:
[tex]=\frac{20000}{320} = 62.5[/tex]
As the number of rooms cannot be in decimal and as we are dealing with floor area some area can be spared but no extra area can be added so the floor function will be applied which rounds off the number to previous whole number
Then number of rooms on first floor is 62
And '
Area for rooms on second floor = 35000 square feet
the number of rooms:
[tex]=\frac{35000}{320}\\=109.375[/tex]
Rounding off using floor function
Number of rooms on second floor = 109
Total number of rooms = 62+109 = 171
Hence,
The correct answer is: c) 171
helpppppzzzz
1 HOUR LEFT
What is the value of e/3
(-2x)^4 simplified??
Answer:
16x^4
Step-by-step explanation:
first compute -2 to the 4th power, then x to the 4th power
(-2)^4= positive 16 because of parentheses and the exponent(4) is even
(x)^4 is just x^4
so multiply 16 and x^4 together and you get 16x^4
Answer:
Step-by-step explanation:
here you go mate'
step 1
(-2x)^4 equation
step 2
(-2x)^4 put (-2x) in four places
(-2x)(-2x)(-2x)(-2x)
step 3
(-2x)(-2x)(-2x)(-2x) multiply
answer
16x^4
2. In this polygon, which angle is an interior angle?
Answer:
Angle C
Step-by-step explanation:
Angle C is the interior angle because it is on the inside of the polygon.
6 is 15% of what number? *
70
40
45
50
Answer:40
Step-by-step explanation:
What is 1+1=
The answer, please for my 1-YEAR-OLD sister that doesn't understand...anything
Answer:
The answer is 2
Step-by-step explanation:
1+1=2
She can put 2 fingers up and count 1,2
What is the area of the triangle
Answer:
16
Step-by-step explanation:
8 × 4 = 32
32 ÷ 2 = 16
hope this helps...
Answer:
16
Step-by-step explanation:
Area of a triangle = base x height divided by 2
base = 8
height = 4
8 x 4 = 32
32/2 = 16
Area = 16
Hope this helps!
Members at a popular fitness club currently pay a $40 per month membership fee. The owner of the club wants to raise the fee to $50 but is concerned that some members will leave the gym if the fee increases. To investigate, the owner plans to survey a random sample of the club members and construct a 95% confidence interval for the proportion of all members who would quit if the fee was raised to $50.
Answer:
(a) It implies that if many samples of the members of the fitness club were selected and many 95% confidence intervals were constructed, the true proportion of all members of the fitness club who would quit would be captured by about 95% of the intervals.
(b) It implies that there is a 95% confidence that the true proportion of all members of the fitness club who would quit if there is an increase in the fee will be captures by the interval 0.105 – 0.225 (i.e. calculated as 0.18 – 0.075 = 0.105 and 0.18 + 0.075 = 0.225).
(c.) No, as there are plausible values above 20 as it is not all the intervals that are below 20. The implication of this is that there is a possibility that more than 20% would quit.
(d) The implication of the condition is that the distribution of the sample is approximately normal. This gives the opportunity to do estimations. However, the it will not be possible to estimate the 2 critical values if the distribution is not approximately normal. .
Step-by-step explanation:
Note: This question is not complete. The complete question is therefore provided before answering the question as follows:
Members at a popular fitness club currently pay a $40 per month membership fee. The owner of the club wants to raise the fee to $50 but is concerned that some members will leave the gym if the fee increases. To investigate, the owner plans to survey a random sample of the club members and construct a 95% confidence interval for the proportion of all members who would quit if the fee was raised to $50.
(a) Explain the meaning of "95% confidence" in the context of this study.
(b) After the owner conducted the survey, he calculated the confidence interval to be 0.18 +/- 0.075. Interpret this interval in the context of the study.
(c.) According to the club’s accountant, the fee increase will be worthwhile if fewer than 20% of the members quit. According to the interval from part (b) can the owner be confident that the fee increase will be worthwhile? Explain.
(d) One of the conditions for calculating the confidence interval in part (b) is that np ≥ 10 and n(1 – p) ≥ 10. Explain why it is necessary to check this condition.
The explanation of the answer is now provided as follows:
(a) Explain the meaning of "95% confidence" in the context of this study.
It implies that if many samples of the members of the fitness club were selected and many 95% confidence intervals were constructed, the true proportion of all members of the fitness club who would quit would be captured by about 95% of the intervals.
(b) After the owner conducted the survey, he calculated the confidence interval to be 0.18 +/- 0.075. Interpret this interval in the context of the study.
It implies that there is a 95% confidence that the true proportion of all members of the fitness club who would quit if there is an increase in the fee will be captures by the interval 0.105 – 0.225 (i.e. calculated as 0.18 – 0.075 = 0.105 and 0.18 + 0.075 = 0.225).
(c.) According to the club’s accountant, the fee increase will be worthwhile if fewer than 20% of the members quit. According to the interval from part (b) can the owner be confident that the fee increase will be worthwhile? Explain.
No, as there are plausible values above 20 as it is not all the intervals that are below 20. The implication of this is that there is a possibility that more than 20% would quit.
(d) One of the conditions for calculating the confidence interval in part (b) is that np ≥ 10 and n(1 – p) ≥ 10. Explain why it is necessary to check this condition.
The implication of the condition is that the distribution of the sample is approximately normal. This gives the opportunity to do estimations. However, the it will not be possible to estimate the 2 critical values if the distribution is not approximately normal.
Select the best answer for the question,
15. How many pages does a good résumé have?
Answer:
Two
Step-by-step explanation:
Most likely answer
Which values are solutions To the inequality below check all that apply
Answer:
6 and -5
Step-by-step explanation:
6x6=36
-5x-5=25
Element X is a radioactive isotope such that every 13 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 60 grams, how much of the element would remain after 30 years, to the nearest whole number?
Answer:
12
Step-by-step explanation:
60(1/2)^30/13 = 12.118996
if a sample size 40 is drawn from the population that has mean 276 and a variance of 81, what is the probability that the mean of the sample will be less than 273?
Answer:
The probability is 0.017429
Step-by-step explanation:
We start by calculating the z-score
Mathematically;
z-score = (x-mean)/SD/√n
In this case;
x = 273
mean = 276
SD = √(variance) = √81 = 9
n = 40
Substituting these values into the z-score formula, we have that;
z = (273-276)/9/√40
z = -2.11
So we proceed to get the probability
the probability in this case is;
P( z < -2.11)
We can use the normal distribution table for this
Our answer will be
P( z < -2.11) = 0.017429
Rewrite in simplest terms: 4 x − 5 ( x + 3 )
Answer:
Step-by-step explanation:
4x - 5(x + 3) Remove the brackets. Watch the - sign and -5*3
4x - 5x - 15 Combine the xs
-x - 15
Complete: 0
Class:
1. Solve. Draw a tape diagram or number bond to add or subtract
tens. Write the new number sentence.
1
a. 26 + 38 =
1
1
1
Answer:
Step-by-step explanation:
The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 23.7 for a sample of size 438 and standard deviation 16.3.
Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 95% confidence level).
Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).
<
μ
μ
<
Answer:
21.5≤μ≤25.2
Step-by-step explanation:
The formula for calculating confidence interval is expressed as;
CI = xbar±(z*s/√n)
xbar is the mean = 23.7
s is the standard deviation= 16.3
n is the sample size = 438
z is the z score at 95% confidence level
z = 1.96
Substitute into the formula
CI = 23.7±(1.96×16.3/√438)
CI = 23.7±(1.96×16.3/20.93)
CI = 23.7±(1.96×0.77788)
CI = 23.7±1.5264
CI = (23.7-1.5264, 23.7+1.5264)
CI = (21.4736, 25.2264)
The confidence interval to the nearest tenth is 21.5≤μ≤25.2
Find the common difference of the arithmetic sequence shown. 1/4.3/8,1/2
Answer:
d=3/8-1/4
=1/8
or d=1/2-3/8=1/8
4.8 + 2.2w − 1.4w + 2.4
Answer:
7.2 + 0.8w
Step-by-step explanation:
combine like terms. Like terms have same variable with same power.
2.2w and (-1.4w) are like terms & 4.8 and 2.4 are like terms.
4.8 + 2.2w - 1.4w + 2.4 = 4.8 + 2.4 + 2.2w - 1.4w
= 7.2 + 0.8w
Answer:
7.2+0.8w
Step-by-step explanation:
4.8+2.2w-1.4w+2.4
4.8+2.4=7.2 2.2w-1.4w=0.8w
Does the graph represent a linear or nonlinear function?
Answer:
Nonlinear. If it was a striaght line, it would be linear.
Step-by-step explanation:
Brainliest? Hope this helped! Friend me please!
log 14 using calculator
Answer:
what does this mean??
Step-by-step explanation:
m
Select the correct answer.
1
6
1)2
12
Which expression is equivalent to 12
12 + I
I - 6
61 + 5 if no denominator equals zero?
I
2
1
1
O A.
H
B.
12 — 31 + 2
12 91 + 20
12 + I 2
12 1- 20
12 31 + 2
12
20
12 + 31 + 2
12 + 1 - 20
C.
D
--
D.
Reset
Next
Use one or more properties to rewrite each expression as an expression that does not use parentheses.
Answer:
b + 9
Step-by-step explanation:
Given:
(b + 3) + 6
Required:
Rewrite expression without the parentheses.
SOLUTION:
(b + 3) + 6
Eliminate the parentheses
b + 3 + 6
Add like terms
b + 9
Thus:
(b + 3) + 6 = b + 9
Please help hurry please. also show how you get the answer.
Answer:
Answer is D
Step-by-step explanation:
-4(9x-2)+3=-36x+8+3=-36x+11
Nine times the sum of a number and ten is the difference of a number and six
Answer:
The answer is -2.
Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $9 monthly fee and charges an additional $0.13 for each minute of calls. The second plan has a $16 monthly fee and charges an additional $0.09 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal
Answer:
the number of minutes of call when the two cost plans would be equivalent to each other is 175 minutes
Step-by-step explanation:
The computation of the number of minutes of call when the two cost plans would be equivalent to each other is shown below:
Let us assume the number of minutes be x
Now the equation is
$9 + 0.13x = $16 + $0.09x
0.13x - 0.09x = $16 - $9
0.04x = $7
x = $7 ÷ 0.04
= 175 minutes
Hence, the number of minutes of call when the two cost plans would be equivalent to each other is 175 minutes
3 cm 2 1/2 cm 2 1/2 cm
Answer: 18.75 cm
Step-by-step explanation:
I multiplyed 3 cm by 2 1/2 and 2 1/1 and got 18.75
In a farm, ratio of number of cows to number of hens is 2:3. If the number of legs is 40 more than number of eyes, total of how many hens are there in the farm?
Answer:
30 hens, 20 cows.
Step-by-step explanation:
Step one:
let the number of cows be x
and the number of hens be y
Each cow has 2 eyes, each hen has 2 eyes also.
the total number of eyes is
2x+2y
Each cow has 4 legs, each hen has 2 legs.
the total number of legs is
4x + 2y
Step two:
the number of legs exceeds the number of eyes by 40:
4x+2y - (2x+2y) = 40
open bracket
4x+2y-2x-2y=40
4x-2x=40
2x=40
Divide both sides by 2
x=40/2
x=20
Step three:
we know also that x = 2/3*y, so y = 3/2*x = 3/2 * 20 = 30
30 hens, 20 cows.
Check:
60 + 40 eyes = 100, 60 + 80 legs = 140legs.
