MATHEMATICS HIGH SCHOOL

So a 4 digit number is represented ABCD, they are not multiplied together, each letter represents 1 single , whole numberif ABCD times D=DCBA

solve for the values of A and B and C and D with full workings and solution (this problem is from my 5th grade math book, just for fun)

Answers

Answer 1
Answer: \overline{ABCD}=10^3A+10^2B+10C+D\n\n\overline{ABCD}* D=(10^3A+10^2B+10C+D)* D\n=10^3AD+10^2BD+10CD+D^2\n\n\overline{DCBA}=10^3D+10^2C+10B+A\n\n\overline{ABCD}* D=\overline{DCBA}\n\downarrow\n10^3AD+10^2BD+10CD+D^2=10^3D+10^2C+10B+A

one\ of\ the\ solutions\ of\ general:\n\n\#1\ AD=D\n\#2\ BD=C\n\#3\ CD=B\n\#4\ D^2=A\n\nfrom\ \#1\ and\ \#4\nAD=D\ and\ D^2=A\to\ conclusion:A=D=1\n\nfrom\ \#2\ and\ \#3\nBD=C\ and\ CD=B\to conclusion:B=C\n\ntherefore

\overline{ABCD}=\n1001\n1111\n1221\n1331\n1441\n1551\n1661\n1771\n1881\n1991

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Factor the following expression completely please put A,B,C,D as the answer thanks:)
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Solve the equation for x: 2(8x – 16) = 48

Explain how probability can be used to help a sales person forecast future sales.

Answers

Answer with explanation:

A salesperson can use probability to get an idea of his business as using probability he can estimate his sale of the next month as well, based on the present and previous months sales.

It can help him sort issues or errors he is facing in his business as he will get a complete idea of his business using probability.

Moreover, he can forecast future sales by using a technique which involves assigning percentages or weighting benchmarks in sales cycle, so that he can estimate the expected revenue generated.

For example:

A supermarket sales person can assign probabilities to benchmarks in sale cycle as providing needs analysis (25 % probability), adding new product (50%Probability) , Remove a product ( 75 % probability), closing sale (100% Probability) . If these probabilities are large, then forecast model can be objective.

_____________________________________________________

So just like that by assigning probabilities to benchmarks, a sales person can forecast future sales

Answer:

Probability can be used to help a sales person forecast future sales best my showing the likelihood of a certain event occurring. The sales person can then plan around the events that are deemed to be the most likely to occur.

Explanation:

100%Attempt 1 Complete

The vertices of a triangle are listed below. E(-1, 2), F(-5, -1), G(-1, -4) What is the area of the triangle? A. 24 square units B. 12 square units C. 16 square units D. 6 square units

Answers

Answer:

B. 12 square units

Step-by-step explanation:

Answer: 12 square units

Step-by-step explanation: 1/2(6)(4)

Alicia has a gold bracelet and a silver bracelet. She has a black ring, a blue ring, a brown ring, and a white ring. She also has a gold necklace and a silver necklace. How many different combinations of bracelets, rings, and necklaces can Alicia make?

Answers

2\cdot4\cdot2=16

What is the solution to the equation 4 + 3sqrt 2y = 6

Answers

Answer:

the answer it's not correct because you have to put the 6x

Step-by-step explanation:

if you do not put an x after you put the number it would you would get it wrong

A map has a scale of 1 cm : 20 km. Two cities are 2.5 cm apart on the map. To the nearest tenth of a kilometer, what is the actual distance corresponding to the map distance?A. 70 km

B. 52.5 km

C. 50 km

D. 150 km

Answers

Answer:

C. 50 km

Step-by-step explanation:

The scale on the map is,

1 cm : 20 km,

That is, the ratio of the scaled distance and actual distance = (1)/(20)

Let x be the actual distance between the two cities which are 2.5 cm apart on the map,

So, the ratio of scaled distance and actual distance = (2.5)/(x)

\implies (1)/(20)=(2.5)/(x)

x=20* 2.5

x=50

Hence, the actual distance between the cities is 50 km.

Option 'C' is correct.
so just use the rule of 3 simple 

1 cm -------- 20 km 
2,5 cm ----- x km 
----------------------------

 x = 2,5 *20/1 = 50 km

x = 50 km so choice C. is righ,correct sure 

The types of flowers shown in the table make up an arrangement. What percent of the flowers in the arrangement are rosesFlower Arrangement
Lilies: 4
Roses: 15
Snapdragons: 6

Answers

step 1) 4 lilies + 15 roses + 6 snapdragons = 25 total flowers which equals 100%
step 2) 15 roses / 25 total flowers IS EQUAL TO x% / 100%
step 3) cross multiply
           1500 = 25x
step 4) divide
            1500/25 = 25x/25
answer: x= 60%
I think it is 60% cause 15 ÷ 25= 0.6
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