The difference of two numbers is more than 12,and one of the numbers is 3

Question

11-12-2016
Mathematics

contestada

The difference of two numbers is more than 12,and one of the numbers is 3

Respuesta :

Otras preguntas

Carmen is at a used bookstore. Paperback books cost $ 1 each, and hardcover books cost $ 2 each. Carmen can spend up to $ 10 in all.A. Write an inequality that

Perform the following calculations. Express the answers with the correct number of significant figures.a) 7 g - 3.5 g - 2.75 g = b) 200.00 kg - 199.0 kg = c) 25

2.375 divided by 0.05

charlotte has 12 t-shirts. One fourth of her t-shirts are green. How many of Charlotte T-shirts are green

Your doctor prescribes you to take 400 milligrams of medicine every 8 hours. How many ounces of medicine do you take in a day?

charlotte has 12 t-shirts. One fourth of her t-shirts are green. How many of Charlotte T-shirts are green

The northern shore of long Island is built of mounds of glacial till that north shore beaches are rocky with steep bluffs. The south shore is very different. Mo

What causes climate change?

President Woodrow Wilson's statement "The world must be made safe for democracy" was made to justify his decision toa. end United States imperialism in Latin Am

SJ2006 SJ2006 · Answer 1 · 2016-12-12T17:49:51+01:00

SJ2006 SJ2006

12-12-2016

x+y = 12
x-y = 3
x = 3+y

Substitute it in 1st equation,
3+y+y=12
2y = 9
y = 4.5

Substitute it in 1st eq.,
x = 12-4.5 = 7.5

So, the two numbers are 7.5 & 4.5

Hope this helps!

Answer Link