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maria [59]
3 years ago
13

A two digit number is 4 times the sum and three times the product of its digits.Find the number .​

Mathematics
1 answer:
True [87]3 years ago
4 0

Answer:

24

Step-by-step explanation:

= 10x+y=4(x+y)

= 10x-4x=4y-y

= 6x=3y

(÷2) = (2x=y)----- eq.1

According to the quest:-

Case.2-- the number is also equal to 3 times the product of the digits.

10x+y=3xy

Substitute the value of y=2x in place of y.

We get, 10x+2x=(3x)(2x)

= 6x²-12x=0

= 6x(x-2)=0

= 6x=0 so, x=0 or x-2=0 so, x=2.

Consider eq.1:- 2x=y

= 2(2)=y so y=4

OR

= 2(0)=y so y=0

So we take x=2 and y=4

The number:- 10x+y

= 10(2)+4

= 24

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Answer:

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Step-by-step explanation:

-60+80= 20

positive

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3 years ago
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Answer:

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mojhsa [17]

since LM=LN there values are same which is given as 5.5 cm and MN =7cm

now draw a line LM which is 5.5 cm long. From one point of this line construct an arc 5.5 cm in upward direction.Then from the opposite end of the same line LM construct an arc 7 cm long in upward direction. Let it meet the the first arc at any point. The arcs  will meet for sure at any angle. Join the two ends of line LN to this point where they meet. We get a triangle!

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8 0
3 years ago
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Alecsey [184]

Answer:

2. 112

3. 78

5. 672

7.  149.8

9. 17.5

10. 19360

11. 64 000

13. 29

14. 350240

15. 386

16. 224

17. 0.9071847

Step-by-step explanation:

6 0
3 years ago
Find the area of this circle. Area = _______ in2. Use 3.14 for pi and round to the nearest tenth. A. 35.8 B. 28.3 C. 254.3 D. 10
Zinaida [17]

Answer:

A ≈ 254.5 in²

Option C

Step-by-step explanation:

Area of a Circle Formula: A = πr²

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Since we are given diameter <em>d</em>, we simply divide by 2 to get radius <em>r</em>:

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Then we simply plug it into the formula:

A = π(9)²

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7 0
3 years ago
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