Let C be the total cost. Then the required expression is:
C = 9b + 3k.
X= hours needed by the designer
x+ 16= hours needed by the assistant
In 6 hours the designer does 6/x of the job
In 6 hours the assistant does 6/(x + 16) of the job
Together they complete the 1 job
6/x+ 6/( x+16)= 1
6(x+16) +6x =+ x2<span> </span><span>16x
6x+ 96+ 6x= </span>x<span>2+ 16x
0= </span>x2+ 4x- 96
0= (x+12)(x-8)
{-12/8}
The designer needs 8 hours and the assistant needs 24 hours.
Answer:
-2 1/24
Step-by-step explanation:
First lets convert to improper fractions to make life easier.
-3 3/8 = -27/8
now we have -27/8 - (- 4/3)
now let's make the denominators equal so we can subtract.
-81/24 - (- 32/24)
now we can do the operation: since we are subtracting a negative, it's the same thing as adding the number so we can rewrite as -81/24 + 32/24 which would give us -49/24. Converting to a mixed number, we have -2 1/24
Y=-3
9+y=6
-9 -9
y=-3
subtract 9 from 6 that's what y equals
Answer:
8/5
Step-by-step explanation:
this is a slope formula which formats y=mx+b
m being the slope
and b being the y-intercept
so no need to look far, and no need to solve anything but 8/5 would be your y-intercept
:)) have a great day!