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pychu [463]
4 years ago
9

The sum of two numbers is 15. Twice one number equals 3 times the other. Find both numbers

Mathematics
1 answer:
Dmitrij [34]4 years ago
4 0

Answer:

9 & 6

Step-by-step explanation:

First, check if, by adding them (sum), they equal 15:

9 + 6 = 15

Next, check the greater number, by multiplying it by 2:

9 x 2 = 18

Check the lesser number, by multiplying it by 3:

6 x 3 = 18

Note that they both have 18 as an answer.

9 & 6 are your answers.

~

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Please I need help
solong [7]

9514 1404 393

Answer:

  (c)  27x^11 +51x^7 +9x^6 -60x^5 +17x^2 -20

Step-by-step explanation:

As with many multiple-choice questions, you only need to look at something that will discriminate the correct answer from the wrong one.

The highest-degree product term is the product of the highest-degree terms in the factors:

  (3x^5)(9x^6) = 27x^11

This matches choice C only.

_____

In case you're interested in actually performing the rest of the multiplication, the distributive property applies.

  (1 +3x^5)(17x^2 +9x^6 -20)

  = 1(17x^2 +9x^6 -20) +3x^5(17x^2 +9x^6 -20)

  = 17x^2 +9x^6 -20 +51x^7 +27x^11 -60x^5

Writing these terms in order of decreasing exponents gives ...

  = 27x^11 +51x^7 +9x^6 -60x^5 +17x^2 -20

7 0
3 years ago
Tina Has 1800.00 in a bank account that earns 19.3% interest how much interest she will earn in 3months
salantis [7]
1800.00*3 which is 5400 then divide it by 100 so in 3 months she will earn 54%
8 0
3 years ago
Read 2 more answers
Which number is equivalent to the fraction 15/7<br> A. 7/15<br> B. 2<br> C. 2 4/7<br> D. 2 1/7
nadezda [96]

Answer:D 2 1/7

Step-by-step explanation: you can put 7 into 15 two times and that gives you 2 holes and you then have 1/7 leftover therefore you have 2 1/7.

8 0
3 years ago
Read 2 more answers
A father wants to build an octagonal (that is, 8-sided) play pen for his toddler. Each side of the octagon has a length of 3√50
Margarita [4]
The answer is 120 * sqrt of 2

3 * sqrt of 50 * 8 = 24 * sqrt of 50
24 * sqrt of 50 simplifies to 120 * sqrt of 2
6 0
4 years ago
10. What is the solution to 5x2 - 7x + 3 = 0?
masya89 [10]

Answer:

Bodmas rules first -7 multiplay by 3 and get -21 the 5 multiply by 2 and get 10 ..then +10 minus 21 and get -11

3 0
3 years ago
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