Answer:
the answer is 320
Step-by-step explanation:
144 divided by 0.45 equals 320
and for checking my answer 320 times 0.45 equals 144
so 320 is your answer i hope this helps
Answer:
f(-1) = -6
Step-by-step explanation:
f(x) = 12 / ( 4x+2)
Let x = -1
f(-1) = 12 / ( 4*-1+2)
= 12 / (-4+2)
= 12 / -2
= -6
Answer:
2x + 4y = 16.
Step-by-step explanation:
14x - 7y = 8
Convert to slope-intercept form:
-7y = -14x + 8
y = 2x - 8/7
The slope is 2 so the line perpendicular to it has a slope of -1/2, so we have:
y = 1/2x + c
This line passes through the point (-2, 5) so:
5 = -1/2* (-2) + c
5 = 1 + c
c = 5 - 1 = 4
So our equation is y = -1/2x + 4.
Convert to standard from
4y = -2x + 16
2x + 4y = 16.
Answer:
x=10, y=6
Step-by-step explanation:
the send equation minus the first.
(5x+y)-(3x+y)=56-36
2x=20--->x=10
then put x=10 to the first equation, 3*10+y=36, get y=6
