Seudónimo Seudónimo

03-01-2017
Mathematics

contestada

Given the system of equations:
2x + 2y = 16
6x + 4y = 38
What is the value of X?
A. 13
B. -1
C. 3
D. 1/3

Respuesta :

fencingparry4 fencingparry4

03-01-2017

2x=16-2y
x=8-y

6(8-y)+4y=38
48-6y+4y=38
48-2y=38
-2y=-10
y=5

8-5=x
x=3 <-Answer

Answer Link

Otras preguntas

N.L.•N.Y.JOIN, or D I E.What is the intended message of this political cartoon?

When given the information below, can you conclude that Quadrilateral WXYZ is a parallelogram? Why or why not? In Quadrilateral WXYZ, the sides have the followi

How has the character of the crystal Merchant been tricked over time into believing"the world's greatest lie", as Melchizedek called it

find the integral of sinx dx

The following question is based on your reading of A Midsummer Night’s Dream by William Shakespeare. Who removes the spell from Lysander? a. Oberon c. Demetri

Sally wants to paint her kitchen. The area to be painted is 260 square feet. One quart of paint covers 90 square feet. How many quarts of paint does Sally need?

4 times a number is 21 less than the square of that number. Find the positive solution

Cells are like fine tuned machines. They work to maintain a balance by removing what is not needed and obtaining what is. For example, if a particular enzyme su

a total of $67,000 is to be invested, some bonds and some in certificates of deposit (CDs). If the amount in bonds is to exceed that in CDs by $5,000, how much

subtracting 2x^2+4x-5 from 7x^2+x+9 results in a polynomial. after substracting 4x^2 - 3x from this polynomial, the difference is ________?