LOOK, 25 POINTS Y'ALLthis is a logic-math combo question that was from my 5th grade math book (singapore math). just for fun. I never solved it on my own. MUST SHOW ALL WORK

there are 4 single digit whole numbers represented by A, B, C, D. They are all different numbers.

when you multiply ABCD with D, you get DCBA

solve for the values of A,B,C, and D

(note: if A=2,B=3,C=4,D=5 then ABCD=2,345, but that is not the solution)

Show all work and do not copy

Answers

Answer 1
Answer: To start, ABCD(D)=DCBA means that D×A=D because they're all single digit numbers and since nothing carries over to make DCBA a 5 digit number A must be 1. If A is 1 for ABCD(D)=DCBA that would mean D^2 is a number ending in 1 so the only possibility for D is 9. Since D is 9, D×B has to be less than 10 because we know nothing carries over to the D×A (9×1) so B has to be 0. So far we have 10*9(9)=9*01 and since D×D (9×9) is 81 we need a number divisible by 9 that ends with 2 to add to the 8 digit which the only possibility is 72 from 8×9. SO A=1, B=0, C=8, D=9
1089(9)=9801

Related Questions

ohn and 3 friends are going out for pizza for lunch. They split one pizza and 4 large drinks. The pizza cost $13.00. After using a $6.00 gift certificate, they spend a total of $13.20. Write an equation to model this situation, and find the cost of one large drink.
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If the length of a rectangle is increased by 120 %, and its width is decreased by 20%,what happens to the area of the rectangle?
Find the quotient (35n 3 - 30n 2 + 25n) ÷ (-5n)
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Which graph is generated by this table of values?

Answers

Answer:

B

Step-by-step explanation:

Answer:

wheres the rest of the graphs?

Step-by-step explanation:

It’s NOT the first one

Find the slope of the line containing the pair of points.(-10,-3) and (-12,-10)
the slope of the line is...........???

Answers

\sf~m=(y_2-y_1)/(x_2-x_1)

(-10, -3), (-12, -10)
  x1  y1    x2   y2

Plug in what we know:

\sf~m=(-10-(-3))/(-12-(-10))

Subtract:

\sf~m=(-7)/(-2)

Divide:

\sf~m=\boxed{\sf3.5}
m = (y_2 - y_1)/(x_2 - x_1) = (-10 - (-3))/(-12 - (-10)) = (-10 + 3)/(-12 + 10) = (-7)/(-2) = 3(1)/(2)

The slope of the line is equal to 3¹/₂.

y - y_1 = m(x - x_1) \ny - (-3) = 3(1)/(2)(x - (-10) \ny + 3 = 3(1)/(2)(x + 10) \ny + 3 = 3(1)/(2)(x) + 3(1)/(2)(10) \ny + 3 = 3(1)/(2)x + 35 \ny = 3(1)/(2)x + 32

Ling is just starting high school, and has set a long-term goal for herself to study abroad in France her senior year of college. List four short-termgoals Ling might want to consider to get on track to meet her goal. Describe the order in which you think these short-term goals should be met and why.

Answers

1 Learn about the French Culture
2 Learn basic French
3 Meet a friend from France (via Penpal)
4 Study!

These are important because they will make her life in France easier and more fun!

Bentuk sederhana dari(5a+7)-(2a+3) adalah

Answers

(5a+7)-(2a+3)
Distributhing - through parantheses
5a+7-2a-3
5a+4-2a
3a+4
The answer  is:  3a+4

If f(x) = x2 + 2x + 3, what is the average rate of change of f(x) over the interval [-4, 6]? A. 51

B. 40

C. 31

D. 20

E. 4

Answers

Calculating the value of f(x) for the given interval.

For x = - 4, f(x) = f(- 4) = (- 4)^2 + 2 (- 4) + 3 = 11

For x = 6, f(x) = f(6) = (6)^2 + 2 (6) + 3 = 51

Now using formula for the calculation of average rate of change of f(x) over the given interval of [- 4, 6];

(f(b) – f(a)) / b – a = (f(6) – f(- 4)) / 6 – (- 4) = (51 -11) / 10 = 4

So option “E” is correct.

In this figure, A'B'C'D'is a transformation of ABCD.Which type of transformation is A'B'C'D'?
dilation
rotation
reflection
translation

Answers

Answer:

translation  and um thats all