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

Why were the articles of confederation created the way they were?

What were indulgences ?

Line segments AB and CD intersect each other at point O. Prove that the sum of the distances between any point on the plane to points A, B, C, and D is not

"First in war, first in peace, and first in the hearts of his countrymen." What does this quote by Henry Lee illustrate by the phrase "first in war"? George Wa

Charmaine's penny bank is 1/10 full. After she adds 400 pennies, it is 1/2 full. How many pennies can Charmaine's bank hold

A 2.0 kg bird lands on a 1.0 x 10^1 kg bit of tree bark sitting on a frictionless ice-covered pond. The bird’s initial horizontal speed is 6.0 m/s. What is the

Drag each part of the expression to categorize it as a term or a coefficient in the expression.

The entries for the debit account titles in the “Account Title” column are written

what is the slope of y=6-3x

The school fu fair made $1768 on games and $978 on food sales. How much money did the fun fair make on games and food sales?