andryCels1ea7nushadl andryCels1ea7nushadl

01-12-2016
Mathematics

contestada

What has the sum of 20 but the difference is 8?

Respuesta :

Nasornisbeautiful Nasornisbeautiful

01-12-2016

x + y = 20---- 1
x - y = 8----- 2

From 1+2
2x = 28
x = 14
Substitute x in eq.2
14 -y = 8
y = 6

Ans : x= 14 , y= 6

Answer Link

Otras preguntas

Help 6th grade math! write the opposite of -4 1/2 and explain how it's related to -4 1/2. Use a number line as a reference in your explanation.

"Without leaps of imagination, or dreaming, we lose the excitement of possibilities. Dreaming, after all, is a form of planning." - Gloria Steinem. what does th

Circle the letters of each structure that animal cells containA. ChloroplastsB. LysosomesC. MitochondriaD. ErSome body please help me asap

Esther wants to have $150,000 in 10 years. She plans to invest $18,000 to start and make yearly payments of $2,500 to the account. She will be receiving 6.5% in

What is the purpose of experimental methods in psychology?.

In paragraph 4, what does grandeur most nearly mean?

Solve the equation 3y=2x-3

Are bacterial cells prokaryotic or eukaryotic? Why or why not?.

Draw Conclusions Why was Michael Faraday's dynamo essential to later inventions, such as the light bulb, and new industrial processes? Cite evidence from the te

Which of the following states that energy cannot be created or destroyed?