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prisoha [69]
2 years ago
10

The sum of two numbers is 19 and their difference is 5. What are the two numbers?

Mathematics
2 answers:
Setler79 [48]2 years ago
7 0

Answer:

your answers will be 12 and 7

Step-by-step explanation:

a few points to help that are related to numbers

Sum of two odd numbers will always be even.

Sum of two even numbers will always be even.

Sum of one odd and one even number will always be odd.

Let the both numbers be first and second.

According to the problem statement:

first + second = 19

first – second = 5

Add both equations:

first + second + first – second = 19 + 5

2 * first = 24

first = 24 / 2

first = 12

So from this we get first = 12, put this value in any equation i.e.

first + second = 19 (Put the value of first in this equation)

12+ second = 19

second = 19 – 12

second = 7

So, the numbers are 12 and 7.

vovikov84 [41]2 years ago
5 0

Answer:

7 and 12

Step-by-step explanation:

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3 years ago
Find each function value<br><br>1. f(7) if (x)=5x<br><br>2. f(4) if f(x)=3x-1
Inessa [10]

<u>ANSWER</u>

1. \:  \: f(7) = 35

2. \: f(4) = 11

<u>EXPLANATION</u>

To find the value of a function, f(x) at a given value x=a, we plug in x=a into f(x) to obtain f(a) in simplified form.

The first function is

f(x) = 5x

To find f(7), we substitute x=7, into the function.

\implies f(7) =5(7) =  5 \times 7 = 35

The second function is

f(x) = 3x - 1

To find f(4), we replace x with 4 to obtain,

f(4) = 3(4) - 1

f(4) = 12 - 1 = 11

6 0
3 years ago
I need help with my homework please answer this correctly
Bogdan [553]

2 numbers can be represented by the variables x and y.

Set up a system of equations:

x + y = 33

x - y = 1

The two numbers added together will result in a sum of 33. However, one number subtracted from another will result in a difference of 1.

In both systems of equations, there are inverses of variable y. Therefore, we can combine the systems of equations by adding them together:

(x + x) + (y - y) = (33 + 1)

2x = 34

Divide both sides by 2 to get x by itself:

x = 17

One of the numbers will be 17.

Plug the value into one of the equations:

17 - y = 1

Add y to both sides:

17 = y + 1

Subtract both sides by 1 to get y by itself:

y = 16

The two numbers that sum up to 33, with a difference of 1 between them, will be 16 and 17.

6 0
3 years ago
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