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3 years ago

The sum of two numbers is 44 and the difference is 14. What are the numbers?

Mathematics

2 answers:

Fudgin [204]3 years ago

6 0

Answer:

Hope it may help u

Step-by-step explanation:

The sum of two numbers is 44 and their difference is 14. What are the two numbers? Let's start by calling the two numbers we are looking for x and y.

The sum of x and y is 44. In other words, x plus y equals 44 and can be written as equation A:

x + y = 44

The difference between x and y is 14. In other words, x minus y equals 14 and can be written as equation B:

x - y = 14

Now solve equation B for x to get the revised equation B:

x - y = 14

x = 14 + y

Then substitute x in equation A from the revised equation B and then solve for y:

x + y = 44

14 + y + y = 44

14 + 2y = 44

2y = 30

y = 15

Now we know y is 15. Which means that we can substitute y for 15 in equation A and solve for x:

x + y = 44

x + 15 = 44

X = 29

Summary: The sum of two numbers is 44 and their difference is 14. What are the two numbers? Answer: 29 and 15 as proven here:

Sum: 29 + 15 = 44

Difference: 29 - 15 = 14

ddd [48]3 years ago

4 0

Answer:

$x + y = 44 \\ x - y = 14 \\ x = 29 \\ y = 44 - 29 = 15$

Step-by-step explanation:

Add the two equations together, yoh get 2x =58, since y will cancels each other. Divide 2x with 58 and you get x = 29, rhen find y by substracting 29 from 44 and you get y = 15

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I hope this helps!

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3 years ago

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3 years ago

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Step-by-step explanation:

In statistics, a confidence interval (C.I) is known as an interval estimate which is computed using the observed data that might contain the actual value of an unknown parameter. The confidence level is commonly used for estimation before examining the actual data. On the other hand, the prediction interval (P.I) is a range of values that calculate the value of a new observation by considering the existing model developed using the actual data. Therefore, the true statement is:

width (C.I) ∠ width (P.I)

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