Answer:
-9x - 14
Step-by-step explanation:
Distribute (multiply) the 1/4 to everything in the parentheses.
1/4 * 4x = 1x or x 1/4 * -8 = -2
Then you distribute (multiply) the -2 to everything in the parentheses.
-2 * 5x = -10x -2 * 6 = -12
Then you put the equations together.
x - 2 - 10x - 12
Then you combine like terms.
x - 10x = -9x -2 - 12 = -14
Finally you get your answer in simplest form.
-9x - 14
A because -2 -3 -4 ext are less than -1
Varies inversely :
f(x) = k/x
There is always a constant of variation , k to solve for using the given information. when x = 0.4 ; f(x) = 0.2
0.2 = k/0.4
0.2(0.4) = k
0.08 = k
final equation : f(x) = 0.08/x
when x = 1.6
f(x) = 0.08/1.6
f(x) = 0.05
Answer:
a = 40
t = 1
x = 6
x = 11
Step-by-step explanation:
1.
3/8 = 15/a
multiply both sides by a, then multiply by the reciprocal of 3/8
a = 8*15/3
2.
multiply both sides by 2
t = 1
3.
multiply both sides by 5
x - 3 = 30/10
x = 6
4.
multiply both sides by x - 5, then multiply by the reciprocal of 10/15
60/10 = x - 5
x = 6