toltecavsmaya toltecavsmaya

01-04-2015
Mathematics

contestada

If (−3.5, y) is a solution to the equation 2x − 5y = 10, what is the value of y?

a) -3.4
b) 13.75
c) -0.6
d) -3.75

Respuesta :

Panoyin Panoyin

02-04-2015

2x - 5y = 10
2(-3.5) - 5y = 10
-7 - 5y = 10
+7 +7
     -5y = 17
      -5    -5
      y = -3.4
The value of y is equal to A. -3.4.

Answer Link

Otras preguntas

4x squared + 7x +2=0 use quadratic formula

(LC)Which weapon caused the fewest casualties in World War I? A machine gun B artillery C airplane D bayonet WRONG

Which of these is likely to result in the most competition? A. organisms that live in different ecosystems B. organisms that use the same resource C. organisms

what problem was causing conflict between European and Latin American nation

Leslie needs 324 inches of fringe to put around the edge of a tablecloth.The fringe comes in lengths of 10 yards.If Leslie buys 1 package of fringe, how many fe

Frederick the Great is credited with making a great European power. i think its Prussia but i don't know

22=-11k help solve problem

Why was Brian traveling in a bushplane?

find the fractional part of 3/5 of 20

Find the least common multiple of x2 – 2x – 15 and x2 + 2x – 3. (x + 5)(x + 3)(x + 1) (x – 5)(x + 1)(x + 3) (x – 5)(x + 3)(x – 1) (x + 3)(x – 1)(x + 5) z va