The product of two numbers is 30. The sum of the two numbers is 20. What might the two numbers be?

Question

01-08-2016
Mathematics

contestada

The product of two numbers is 30. The sum of the two numbers is 20. What might the two numbers be?

Respuesta :

Otras preguntas

______ is a method of communication that uses touch sensations only. a. affection b. sign language c. braille d. proprioception e. haptic perception

I WILL GOBE BRAINLIST according to image 2 how does this reveal about the impact of the treaty of Versailles on Germany’s sense of pride and nationalism

Twelve more than the product of a number and four is fewer than 60. Write the above sentence as an algebraic inequality.

What three factors led to French Revolution

Usee implicit differentiation to find ∂z/∂x and ∂z/∂y. x2 + 4y2 + 9z2 = 7

a boy jogs 250 meters in 110 seconds. what is his average speed.

Following the Gulf of Tonkin incident Congress passed the Southeast Asia Resolution. Who was the President at that time AND what did it allow the President to d

how to find x for similar right triangle

In what way was the 1840 whig campaign for president similar to recent presidential campaigns? a. both had candidates with no platforms. b. both stressed that t

caylus caylus · Answer 1 · 2016-08-02T12:18:46+02:00

caylus caylus

02-08-2016

Hello,

Let's be a and b the 2 numbers.

a+b=20==>b=20-a
a*b=30==>a*(20-a)=30
==>a²-20+30=0
Δ=20²-4*30=4*70
a=(20+2√70)/2 or a=(20-2√70)/2
==>(a=10+√70 and b=10-√70) or (a=10-√70 and b=10+√70)
The 2 numbers are 10+√70 and 10-√70 .

Answer Link