mattiemeredith5 mattiemeredith5

02-07-2020
Mathematics

contestada

Solve the system by substitution. In the space provided, type the answer without any
spaces between the letters, numbers, or symbols.
3. x - y= 12
x + y = 18

Respuesta :

alishoaibm2004 alishoaibm2004

02-07-2020

Answer:

x=15,y=3

Step-by-step explanation:

x-y=12

x+y=18

now,x=12+y

substituting in x+y=18

(12+y)+y=18

12+2y=18

2y=18-12

2y=6

y=6/2

y=3

now,x=12+y

so,x=12+3

x=15

Answer Link

Otras preguntas

For f(x) defined below, which of the following could be a value of f(x)?f(x)=x^2+2A) 0B) 2C) 1D) -1

A chef bought 9 kilograms of almonds and 0.1 kilograms of pecans. How many kilograms of nuts did the chef buy in all?

The following sentence has a dangling modifier. After reading the book it was based on, several key plot elements were missing from the movie. Which revision be

You will write a 4 paragraph essay (in complete sentences). For this essay, you will need to select a piece of art from Chapter 1: Learning About Art. The foll

What is the limiting resource that drives natural selection on the Galapagos?

Which is NOT included in the Vedas? prayers religious laws hymns rituals

This equation models the height over time of a deep-water sensor. h(t) = -4.9t^2 + 29.4t + 5.9 Rewrite the function in vertex form.

3.242424... as a mixed number

Someone please help me i got a few min left :(

Select the explicit expression for the sequence {4, 9, 14, 19...}. f(n)=4+5(n−1) f(1)=4, f(n)=f(n−1)+5 for n>1 f(1)=5, f(n)=f(n−1)+4 for n>1 f(n)=5+4(n−1)