kyliemo2003 kyliemo2003

23-02-2017
Mathematics

contestada

What is the solution of the system of equations?

4x−3y=15
2x+2y=4

Respuesta :

charlottekrist charlottekrist

23-02-2017

1. Solve for x in 4x-3y=15
X=3(5+y)/4
2. Substitute the new value of x into 2x+2y=4
3(5+y)/4+2y=4
3. Solve for y
Y=-1
4. Substitute the new value of y into x=3(5+y)/4
X=3

Y=-1
X=3

Have a nice day

Answer Link

Otras preguntas

Where in government (federal, state/territory/tribal, or local) would be a good place to examine work efficiency with an exponential distribution? Why?

I need help with part C. Statistics-based.

Express f in terms of unit step functions. f(0) y = sin t, Asts 3A JT 2л Зл -17. 0 = f(t) = -sin(t – TU(t - 1) + sin(t - 31)U(t - Зп) sin(t)U(t – T) - sin(t -

I need some help with this. Thanks for helping!

W(s,t)=F(u(s,t),v(s,t)), where F, u, and v are differentiable. If u(3,0)=−3u, us(3,0)=−7us(3,0)=-7, ut(3,0)=4, v(3,0)=3, vs(3,0)=−8, vt(3,0)=−2vt(3,0)=-2, Fu(−

Productivity is important because: It leads to a higher standard of living It protects intellectual property rights It measures the social cost of production De

Equality 7-2521 says that it is very unusual for men to reach the age of 45. Offer several possible explanations as to why life expectancy is so short in this s

What is the present value of a(n) 11-year annuity that pays $2,000 annually, given a discount rate of 15 percent?

x² Given that f(x): = 2+x* a) Use the definition of derivative to find f'(x). b) find the slope of tangent line to the f(x) at x=2. c) Find the tangent line at

Over the course of the year, Mr. Soo won $8,200 and lost $5,900 gambling in the local casino. Mr. Soo does not itemize deductions on his federal tax return. Wha