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3 years ago

What numbers have a sum of 20 and the difference is 4

Mathematics

2 answers:

kvv77 [185]3 years ago

8 0

Answer:

The numbers are 12 and 8

Step-by-step explanation:

let the numbers be x and y :

$x + y = 20 - - - (a) \\ x - y = 4 - - - (b)$

add (a) and (b):

$2x + 0y = 24 \\ 2x = 24 \\ x = 12$

find y:

$x + y = 20 \\ 12 + y = 20 \\ y = 20 - 12 \\ y = 8$

balu736 [363]3 years ago

6 0

Answer:

16 and 2

Step-by-step explanation:

I'm not sure honestly if this is correct, but I hope this helps.

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Harlamova29_29 [7]

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Step-by-step explanation:

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2 years ago

For what values of x is x2+2x=24 true?

JulijaS [17]

Answer:

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Step-by-step explanation:

We must solve the quadratic equation to find the values of x that satisfy equality

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