Answer:
c
Step-by-step explanation:
if the sides are in proportion set the proportions
6.21/ 5.4 = x/2.6; cross multiply
5.4*x = 6.21 *2.6; divide by 5.4
x= 2.99
Answer:
Look It Up On Google Shhhh Don't Tell
You can use the quadratic formula with it which will be easier
or simple factoring
it will be (5x-11)(7x+4)
Answer:
x = -2
Step-by-step explanation:
Arrange 6x + y= -5, -6x + 12y=96 vertically:
6x + y= -5
-6x + 12y=96 Now combine like terms:
--------------------
13y = 91
Solving for y by dividing both sides by 13: y = 7
Find x by substituting 7 for y in the second equation: -6x + 12(7) = 96
Then -6x = -84 + 96, or:
-6x = 12, and so x = -2
