tweety1 tweety1

02-02-2015
Mathematics

contestada

x+y=10 x-y=20 how do you solving systems of equations with elimination

Respuesta :

konrad509 konrad509

02-02-2015

[tex]x+y=10\\ \underline{x-y=20}\\ 2x=30\\ x=15\\\\ 15+y=10\\ y=-5\\\\ \boxed{(x,y)=(15,-5)}[/tex]

Answer Link

Otras preguntas

please help meeeeeeeeeeeeeeeeeeeeeeeeee

A researcher would like to estimate p, the proportion of U.S. adults who support recognizing civil unions between gay or lesbian couples. Due to a limited budge

What number should be removed from the list {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13} so that the mean of the remaining numbers is 7.25?

All of the following ane benefits to earning a college degree except

Hence, the force of gravitation between Earth and Jupiter is 8.16 * 10 NEnample 5: An apple with the mass of 200 g falls from a tree. What is the accelerationof

The de Broglie wavelength of an electron with a velocity of 6.90 × 106 m/s is ________ m. The mass of the electron is 9.11 × 10-28 g.

The diagram shows the cross section of a solid metal prism of height 32 cm. AD = 8.7 cm, AC = 8cm, AB = 6.4cm, BC = 4.8cm and CD = 3.3cm. Find the volume of the

amm.Q8 Given that the radius of Mars isapproximtaely 3.4 x 10cubed KM.Calculate its volume.Give your answer correct to 3 significantfigures.

Sunset Corp. currently has an EPS of $2.09, and the benchmark PE for the company is 18. Earnings are expected to grow at 6.5 percent per year. Required: a. Wha

Riemann's negation created what famous form of non-Euclidean geometry?