Please Help need an answer

A shopkeeper offers his customers 10% discount and still makes a profit of 26%. What is the actual cost to him of an article marked £280.

Answers

Answer 1

Answer:

200

Step-by-step explanation:

100% ----------- 280

90% ------------280/100 x 90 = 252

126% ------------ 252

100%-------------252/126 x 100 = 200


Related Questions

Use the inverse trigonometric keys on a calc to find the measure of Angle A.

Answers

Step-by-step explanation:

θ = [tex]cos^{-1}[/tex] 17 m/27 m = 50.9°

Student Friendly Bank pays a simple interest rate of 2.5% per year. Neighborhood Bank pays a compound interest rate of 2.1% per year, compounded monthly.

Answers

The question is incomplete:

Student Friendly Bank pays a simple interest rate of 2.5% per year. Neighborhood Bank pays a compound interest rate of 2.1% per year, compounded monthly.

Which bank will provide the largest balance if you plan to invest $10,000 for 10 years? For 20 years?

Answer:

-The bank that provides the largest balance if you plan to invest $10,000 for 10 years is Student Friendly Bank.

-The bank that provides the largest balance if you plan to invest $10,000 for 20 years is Neighborhood Bank.

Step-by-step explanation:

First, you have to calculate the balance if you invest the money in Student Friendly Bank. To do it, you have to use the simple interest formula to calculate the future value:

FV=PV(1+rt)

FV= future value

PV= present value

r= rate

t=time

-10 years:

FV= 10,000(1+(0.025*10))

FV= 10,000(1+0.25)

FV=10,000(1.25)

FV=12,500

-20 years:

FV= 10,000(1+(0.025*20))

FV= 10,000(1+0.5)

FV=10,000(1.5)

FV=15,000

Second, you have to calculate the balance if you invest the money in Student Neighborhood Bank. To do it, you have to use the compound interest formula to calculate the future value:

FV=PV(1+(r/m))^mt

FV= future value

PV= present value

r= rate

t=time

m=number compounding periods per year

-10 years:

FV=10,000*(1+(0.021/12))^12*10

FV=10,000*(1+0.00175)^120

FV=10,000*(1.00175)^120

FV=12,334.5

-20 years:

FV=10,000*(1+(0.021/12))^12*20

FV=10,000*(1+0.00175)^240

FV=10,000*(1.00175)^240

FV=15,214

According to this, the bank that provides the largest balance if you plan to invest $10,000 for 10 years is Student Friendly Bank because it will provide $12,500 and Neighborhood Bank will provide $12,334.5.

The bank that provides the largest balance if you plan to invest $10,000 for 20 years is Neighborhood Bank because it will provide $15,214 and Student Friendly Bank will provide $15,000.

HELP ME PLEASE WILL MARK BRAINLIEST

Answers

Answer:

Bottom Left

Step-by-step explanation:

Break up the numbers to 7,  and -8.

Break up the fractions to 1/5 and -3/5.

3rd one i believe left bottom

I will make you as brainliest!!! Please help me!!! Suggest a committee that needs 5 members to plan a fundraiser. The candidates consist of 24 girls and 16 boys. What is the probability that at most 2 girls will be on the committee?

Answers

Answer:

69/195

Step-by-step explanation:

So u add 24 and 16 to find the total number of people who are there

The total is 40

If they want at least 2 girls

So one of the probability for one girl is 24/40 which is 3/5

The other probability of another girl is 23/39

So u multiply 23/39 by 3/5 which is 69/195

Correct me if this is wrong

Sorry

Answer:

30.77%.

Step-by-step explanation:

There are a total of 40 members.

24 girls 16 boys.

Prob( 0 girls being chosen - so all boys ) =  16/40 * 15/39*14/38*  13/37*12/36 = 0.0063956

Prob( first one to be chosen is a girl  then all boys) = (24/40*16/39*15/38*14/37*13/36) = 0.013276

There are 5 ways of 1 girl being chosen so

Prob(1 girl out of 5 chosen) = 0.013276 * 5 = 0.06638

Prob( First 2  chosen are girls then all boys) = 24/40 * 23/39 * 16/38*15/37*14/36

= 0.023489

Number of ways of 2 girls being chosen is 5C2 and so the probability of 2 girls

= 0.023489 * 5C2

= 0.023489 * 10

= 0.23489.

Required probability = 0.23489 + 0.06638 + 0.0063956.

= 0.3076656

= 30.77% to the nearest hundredth.

What is 275 divided by 20 in lowest form? Please explain it like you would explain it to a 4 yr old cuz I’m really stupid. I keep getting 13 remainder of 15 but when I look it up it says it 13 3/4 so what do I do to go from 13 remainder of 15 to 13 3/4?

Answers

Answer: So think about it this way. 20 goes into 200 ten times, right?

After that, you have 75 left. 20 goes into 60 3 times. After that, you have 15 left.

But wait, 20 can't go into 15 as a whole. So you have to make that a fraction.

15/20. That fraction can be simplified! Divide each part by five. The you get 3/4.

So add up the times you put 20 in. First it was 10 to get to 200, then it was 3 to get to 60. Then it was 3/4 to get to 15.

Now you have 13  3/4

please mark brainliest

Chris has a bucket with paper clips. It has 9 green paper clips and 21 orange paper clips. Chris randomly draws a paper clip, records the color, and returns the paper clip to the bucket. After doing 10 experiments, he found that he drew an orange paper clip 70% of the time. What kind of comparison can be made?

The percentage is likely to decrease with more trials. Or, the percentage is likely to remain the same with more lanes. Or the percentage will likely increase with more experiences.

Answers

Answer:

likely remain the same

Step-by-step explanation:

as their ratio from green to orange paper clips is 9:21 meaning it is very likely to draw a orange. If calculated 9/30 is 30 percent meaning there is a 30 percent chance of drawing green. We can conclude there is a 70 percent chance of drawing green mathematically

Select the correct solution set.
X+17 5 -3
{XIX2-20)
{XIXS-20)
[xl xs 14

Answers

Answer:

x≤-20

Step-by-step explanation:

x+ 17≤-3

Subtract 17 from each side

x+ 17 -17≤-3-17

x≤-20

Which expression is equivalent to the given expression?

Answers

Answer:

20cd-¹ or

[tex] \frac{20c}{d} [/tex]

Step-by-step explanation:

just do calculate

10 x 2 = 20

c⁶ x c-⁵ = c⁶+(-⁵) = c¹ = c

d-⁵ x d⁴ = d-¹

help please writer the answer as letters

Answers

Answer:

B, D, D

Step-by-step explanation:

the correct answer for A is choice B. answer choice C is correct for question B.

Step-by-step explanation:

answer choice D is correct for C.

Jorge and Jillian have cell phones with different service providers. Jorge pays $50 a text month and $1 per text message sent. Jillian pays $72 a month and $0.12 per text message sent. How many texts would each of them have to send in order for their bill to be the same amount at the end of the month?

Answers

Answer:

When they send 25 texts each, their bills will be equal

Step-by-step explanation:

Let the number of text messages that makes their bill equal be x

Jorge will have a bill of = 50 + x(1) = 50 + x

Jillian will have a bill of = 72 + 0.12(x) = 72 + 0.12x

Since their bills will now be equal, we equate both

50 + x = 72 + 0.12x

72-50 = x-0.12x

22 = 0.88x

x = 22/0.88

x = 25 texts

If A(4 -6) B(3 -2) and C (5 2) are the vertices of a triangle ABC fine the length of the median AD from A to BC. Also verify that area of triangle ABD = Area of triangle ACD

Answers

Answer:

a) The median AD from A to BC has a length of 6.

b) Areas of triangles ABD and ACD are the same.

Step-by-step explanation:

a) A median is a line that begin in a vertix and end at a midpoint of a side opposite to vertix. As first step the location of the point is determined:

[tex]D (x,y) = \left(\frac{x_{B}+x_{C}}{2},\frac{y_{B}+y_{C}}{2} \right)[/tex]

[tex]D(x,y) = \left(\frac{3 + 5}{2},\frac{-2 + 2}{2} \right)[/tex]

[tex]D(x,y) = (4,0)[/tex]

The length of the median AD is calculated by the Pythagorean Theorem:

[tex]AD = \sqrt{(x_{D}-x_{A})^{2}+ (y_{D}-y_{A})^{2}}[/tex]

[tex]AD = \sqrt{(4-4)^{2}+[0-(-6)]^{2}}[/tex]

[tex]AD = 6[/tex]

The median AD from A to BC has a length of 6.

b) In order to compare both areas, all lengths must be found with the help of Pythagorean Theorem:

[tex]AB = \sqrt{(x_{B}-x_{A})^{2}+ (y_{B}-y_{A})^{2}}[/tex]

[tex]AB = \sqrt{(3-4)^{2}+[-2-(-6)]^{2}}[/tex]

[tex]AB \approx 4.123[/tex]

[tex]AC = \sqrt{(x_{C}-x_{A})^{2}+ (y_{C}-y_{A})^{2}}[/tex]

[tex]AC = \sqrt{(5-4)^{2}+[2-(-6)]^{2}}[/tex]

[tex]AC \approx 4.123[/tex]

[tex]BC = \sqrt{(x_{C}-x_{B})^{2}+ (y_{C}-y_{B})^{2}}[/tex]

[tex]BC = \sqrt{(5-3)^{2}+[2-(-2)]^{2}}[/tex]

[tex]BC \approx 4.472[/tex]

[tex]BD = CD = \frac{1}{2}\cdot BC[/tex] (by the definition of median)

[tex]BD = CD = \frac{1}{2} \cdot (4.472)[/tex]

[tex]BD = CD = 2.236[/tex]

[tex]AD = 6[/tex]

The area of any triangle can be calculated in terms of their side length. Now, equations to determine the areas of triangles ABD and ACD are described below:

[tex]A_{ABD} = \sqrt{s_{ABD}\cdot (s_{ABD}-AB)\cdot (s_{ABD}-BD)\cdot (s_{ABD}-AD)}[/tex], where [tex]s_{ABD} = \frac{AB+BD+AD}{2}[/tex]

[tex]A_{ACD} = \sqrt{s_{ACD}\cdot (s_{ACD}-AC)\cdot (s_{ACD}-CD)\cdot (s_{ACD}-AD)}[/tex], where [tex]s_{ACD} = \frac{AC+CD+AD}{2}[/tex]

Finally,

[tex]s_{ABD} = \frac{4.123+2.236+6}{2}[/tex]

[tex]s_{ABD} = 6.180[/tex]

[tex]A_{ABD} = \sqrt{(6.180)\cdot (6.180-4.123)\cdot (6.180-2.236)\cdot (6.180-6)}[/tex]

[tex]A_{ABD} \approx 3.004[/tex]

[tex]s_{ACD} = \frac{4.123+2.236+6}{2}[/tex]

[tex]s_{ACD} = 6.180[/tex]

[tex]A_{ACD} = \sqrt{(6.180)\cdot (6.180-4.123)\cdot (6.180-2.236)\cdot (6.180-6)}[/tex]

[tex]A_{ACD} \approx 3.004[/tex]

Therefore, areas of triangles ABD and ACD are the same.

find -8 ÷ -1/2=
quickly

Answers

-4.5

i guess this is the answer

The probability that a biased coin will land on Heads is 0.43
Azmol is going to throw the coin 600 times.
Work out an estimate for the number of times the coin will land on Tails.

Answers

Answer:

[tex]342[/tex]

Step-by-step explanation:

The probability of heads landing is 0.43.

The probability of tails landing is 1-0.43=0.57.

Azmol throws the coin 600 times, so:

[tex]600 \times 0.57[/tex]

[tex]=342[/tex]



This year, Arvin and Mariah were in charge of making orange juice for campers. They planned to make the juice by mixing water and
frozen orange juice concentrate. To find the mix that would taste best, they decided to test some mixes.
Mix A: 2 cups concentrate
3 cups cold water
Mix B: 5 cups concentrate
9 cups cold water
Mix C: 1 cup concentrate
2 cups cold water
Mix D: 3 cups concentrate
5 cups cold water
1. Which mix will make juice that is the most 'orangey"? Explain your reasoning.
2. Which mix will make juice that is the least 'orangey"? Explain your reasoning​

Answers

Answer:

Mix A is the most orangey, Mix C is the least orangey

Step-by-step explanation:

Mix A largest proportion of concentrate to water

Mix C is the smallest proportion of concentrate to water

Based on an architectural drawing, a roof slopes to a drain along the function represented in the table that defines the edge of slope, where x is the horizontal distance in feet and f(x) is the vertical distance in feet. Graph X / 0 / 20 / 40 / 80 / 160 F(x)/ 8 / 6 / 4 / 0 / 8 If the drain is at the minimum point, how far is it from the wall defined by the y-axis? 0 feet 8 feet 80 feet 160 feet

Answers

Answer:

80ft

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

t – 7 = 8 I know this problem is an because it has an equals sign. The t is the . The negative sign is the . The 7 and the 8 are both .

Answers

t - 7 = 8
add 7 to both sides
t = 8 + 7
t = 15

Answer:

1. equation

2. variable

3. operation

4. constants

i took this on edge so i know the answers ^-^

what is 1/3 of 48 in numbers

Answers

Answer:

16

Step-by-step explanation:

Multiply it by 1/3 and it equals 16

Answer:

16

Step-by-step explanation:

48/3=16

i need help help pls

Answers

Answer:

MAD = 2

Step-by-step explanation:

First We'll find the mean of data

Mean = [tex]\frac{20}{5}[/tex]

Mean = 4

Then, we'll find absolute deviation

=> |4-3| = 1

=> |4-2| = 2

=> |4-1| = 3

=> |4-1| = 3

=> |4-3| = 1

Now, taking the mean of these absolute deviations:

MAD = [tex]\frac{1+3+3+2+1}{5}[/tex]

MAD = [tex]\frac{10}{5}[/tex]

MAD = 2

A geometric sequence is represented by a Subscript n Baseline = a Subscript 1 Baseline r Superscript n minus 1. What is the fifth term of a geometric sequence where a Subscript 1 Baseline = 4,096 and the common ratio is Negative one-fourth?

Answers

Answer:

16

Step-by-step explanation:

Given the nth term of a geometric sequence represented as [tex]Tn = a_1r^{n-1}[/tex]

[tex]a_1[/tex] =  first term of the sequence

n = number of terms

r = common ratio

Given [tex]a_1 = 4,096,\ r = -\frac{1}{4} , n = 5[/tex](fifth term of the sequence)

[tex]T_5 = 4,096(-\frac{1}{4} )^{5-1}\\ T_5 = 4,096(-\frac{1}{4} )^{4}\\T_5 = 4,096(\frac{1}{256} )\\T_5 = 16[/tex]

The fifth term of the geometric sequence is 16

Answer:

this is the answer for edge 2020-2021

Step-by-step explanation:

sum- -204.8

Please help me with this math problem

Answers

Answer:

y = x+2

Step-by-step explanation:

First find the slope using two points (0,2) and (5,7)

m = (y2-y1)/(x2-x1)

    = (7-2)/(5-0)

    = 5/5

   = 1

We have the y intercept ( where it crosses the y axis) =2

y = mx+b where m is the slope and b is the y intercept

y = 1x +2

y = x+2

Answer:  y = x+2

=============================================================

Explanation:

The two red points are (0,2) and (5,7)

Find the slope of the line through (x1,y1) = (0,2) and (x2,y2) = (5,7)

Use the slope formula

m = (y2 - y1)/(x2 - x1)

m = (7 - 2)/(5 - 0)

m = 5/5

m = 1

The slope is m = 1.

The y intercept is b = 2 as this is where the diagonal line cuts through the y axis.

Therefore y = mx+b turns into y = 1x+2, which is the same as y = x+2

This says: "whatever the input x is, add 2 to it to get the y output". So for instance, if the input is x = 5, then we add on 2 to get y = x+2 = 5+2 = 7. This shows how (5,7) is one point on the diagonal line.

Please answer correctly......Leslie has a box of markers. There are 3 black, 4 red, 2 blue, 1 brown, 2 purple, 2 yellow and 5 green markers. Which of the following is a sample space of possible outcomes for choosing one marker?

Answers

Answer:

A

Step-by-step explanation:

possible outcomes for choosing one marker is 1/19

so there for the answer is A

Solve.
5 3
+
8 4
-2 5
3 6
11
-216
12

Answers

Answer:

[tex]-\frac{11}{12}[/tex]

Step-by-step explanation:

[tex]\frac{\frac{5}{8}+\frac{3}{4}}{-\frac{2}{3}-\frac{5}{6}}[/tex]

Working on the denominator,

[tex]-\frac{4}{6}-\frac{5}{6}=\frac{-9}{6}=-\frac{3}{2}[/tex]

[tex]\frac{\frac{5}{8}+\frac{3}{4}}{-\frac{3}{2}}[/tex]

Working on the numerator,

[tex]\frac{5}{8}+\frac{3}{4}=\quad \frac{11}{8}[/tex]

[tex]\frac{\frac{11}{8}}{-\frac{3}{2}}[/tex]

[tex]-\frac{11\cdot \:2}{8\cdot \:3}=-\frac{22}{24}=-\frac{11}{12}[/tex]

????? HELP PLEASEEE!!

Answers

what is the question?

Which of them do I turn into a decimal, a fraction, or a mixed number?.

Answers

I’m guessing you have to turn it into a decimal?

What is the error made

Answers

Answer:

see below

Step-by-step explanation:

The formula for slope is

m = (y2-y1)/(x2-x1)

The person who tried to solve the problem did

Subtracted the x's over the y's instead of the y's over the x's

It should be (0-3)/(-4 -2)

                     -3/-6

x=3/5 y=1/3 z=2 4/5 work out z+x*y

Answers

Answer:

3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

z+x*y

Start by plugging the corresponding values in.

2 4/5 + 3/5*1/3

Multiply first. (Order of operations)

Note: When multiplying fractions, simply multiply the denominators together, and then the numerators together.

2 4/5 + 3/15

Simplify.

(I divided 3/15 by 3/3, which just equals 1.)

2 4/5 + 1/5

Add.

2 5/5

Simplify

3

These box plots show the basketball scores for two teams.

Bulldogs
55
70
80
90
105

Tigers
55 60 65
85
110

Basketball scores
Which statement is the most appropriate comparison of the spreads?

O A. The range for the Bulldogs, 20, is less than the range for the
Tigers, 25.

O B. The median for the Bulldogs, 80, is more than the median for the
Tigers, 65.

O C. The interquartile range (IQR) for the Bulldogs, 20, is less than the
IQR for the Tigers, 25.

D. The interquartile ranges (IQRs) for the Bulldogs and Tigers are
both 55.​

Answers

Answer:

C. The interquartile range (IQR) for the Bulldogs, 20, is less than the

IQR for the Tigers, 25.

Step-by-step explanation:

When describing the spread of a given data set in a box plot using the five-number summary, the measure that is of utmost important is the range or the interquartile range.

The range is the difference between the max and the min.

The interquartile range is the difference between Q3 and Q1.

Therefore, considering the options given:

=>Option A is incorrect because the range for bull dog is 50 (105 - 55), while the range for Tigers is 55 (110 - 55).

=>Median cannot be used for describing spread, so option B is not the most appropriate comparison of the spreads.

=>Option C is correct and the most appropriate because the interquartile range of bulldogs is 20 (90 - 70), which is less than the IQR of Tigers which is 25 (85 - 60).

=>Option D is incorrect.

Answer:

C

Step-by-step explanation:

1,784 rounded to the nearest ten

Answers

Answer:

1,784=1,780

Step-by-step explanation:

because the tens column is 4,it is not greater than 5 but less than 5.due to this, the 1,784 becomes 1,780 because in this a number less than five will automatically become 0

The answer is 1,780

Mgghvcjgghcgjchkkcf gdhjvdh gang zgb ca gdgjxfh. KkHogg b

Which equation matches the graph of the greatest integer function given below, help please

Answers

I believe the answer is A, because it is translated down four units

What is the solution to this system of equations

Answers

Sorry, Please rewrite it again.

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