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shutvik [7]
2 years ago
14

The sum of two numbers is 17 ​The difference of those same two numbers is 3

Mathematics
2 answers:
taurus [48]2 years ago
8 0

The two numbers are 10 and 7.

10+7=17 and 10-7=3

ser-zykov [4K]2 years ago
8 0

Answer:

10 and 7

Step-by-step explanation:

Let unknown numbers be x and y

x + y = 10.... (1)

x - y = 3....... (2)

This leads to simultaneous linear equations

We shall solve the equation by substitution method

From equation (1), we shall make x subject of formula to form a new equation (3)

x + y = 17

x = 17 - y ..... (3)

Now we substitute the value of x = 17 - y into equation (2)

x - y = 3

17 - y - y = 3

17 - 2y = 3

-2y = 3 - 17

-2y = -14

y = 7

Now we substitute this new value of y = 7 into equation (1)

x + y = 17..... (1)

x + 7 = 17

x = 17 - 7

x = 10

Therefore the two numbers are 7 and 10

7 + 10 = 17

10 - 7 = 3

x + 7

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Answer:

2x + 6y + 9

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Step-by-step explanation:

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2 years ago
What is the sign of the product?
pishuonlain [190]
= (0.3)(-9.2)(-8.1)(4.2)(-0.8) \\ = (-2.76)(-8.1)(4.2)(-0.8) \\ = (22.356)(4.2)(-0.8) \\ = (93.8952)(-0.8) \\ = -75.11616

So, yeah the product is Nagative.
8 0
3 years ago
Read 2 more answers
Over a period of 12 weeks, Carlos ran an average of 21 miles per week. How many kilometers is this? Round your answer to the nea
velikii [3]

Answer:

405.80

Step-by-step explanation:

So, we know Carlos ran 21 miles per week, for 12 weeks....

That makes 21 mi/wk x 12 weeks = 252 miles.

Then we know each km is 0.621 mile.

So, we divide 252 miles by 0.621 mile/km to get= 405.80 km

Dividing miles by miles/km gives us the unit we want (km).

<u>There was a trap in this question,</u> because if instead of dividing the 252 miles by 0.621 you would have multiplied it, you would have gotten another answer listed... just not the right one. :-)

5 0
3 years ago
Naruto ran 634 miles today, and Sakura Ran412 miles. How many times the length of Sakura's distance was Naruto's distance? Selec
dezoksy [38]

Answer:

Step-by-step explanation:

The question reads much more complicatedly than the actual equation.

Sakura * x = Nanuto

412 x = 634     Divide by 412

x = 634/412

x = 1.54 times

The closest answer is 3/2 as far. 1.54 is just about 3/2.

6 0
2 years ago
A kitten and a puppy found a sausage which is 14cm long and started eating it simultaneously from each end. The kitten is eating
julsineya [31]

It takes them 12 seconds to eat the whole sausage.

<h3>What is speed?</h3>

Speed is the rate of change of distance.

Analysis:

If kitten eats x cm, then puppy will eat 14 - x cm

speed = d/t

speed of kitten = 1/2

speed of puppy = 2/3

1/2 = x/t

2/3 = 14 - x / t

t = 2x--------1

2t = 3(14 - x ) -------- 2

substitute t in equation 2

2(2x) = 3(14 - x)

4x = 42 - 3x

7x = 42

x = 42/7 = 6cm

substitute value of x in equation 1

t = 2(60 = 12 seconds.

In conclusion, it takes the both animals 12 seconds to finish the sausage.

Learn more about speed: brainly.com/question/4931057

#SPJ1

3 0
1 year ago
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