Answer:
Step-by-step explanation:
Let Carlo's age = x
Equation: 6*x = 108
6x = 108
Solution:
6x = 108
x = 108/6
x = 18
Carlo's age = 18 years
Answer:
- 2x +3(8 -3x) = 3
- x = 3
- y = -1
Step-by-step explanation:
The second equation tells you ...
y = 8 -3x
Using this expression in the first equation gives you ...
2x +3(8 -3x) = 3
2x +24 -9x = 3 . . . . . eliminate parentheses
21 = 7x . . . . . . . . . . . add 7x -3
3 = x . . . . . . . . . . . . . . divide by 7
y = 8 -3×3 = -1 . . . . . . use the second equation to find y
The solution is (x, y) = (3, -1).
Answer:
the question is incomplete, the complete question is "Finding second Derivatives In Exercise,find the second derivate.
"
answer:
,
Step-by-step explanation:
To determine the second derivative, we differentiate twice.
for the first differentiation, we use the product rule approach. i.e

from
if w assign
u(x)=(3+2x) and the derivative, 
also
and the derivative
.
If we substitute values we arrive at
,
Now to determine the second derivative we use the product rule again
this time, u(x)=(7+6x) and the derivative, 
also
and the derivative
.
If we substitute values we arrive at
,
True at some point every line has a middle
Answer:
$5.85 = cost for fluffy slime
4r + 2(5.85) = 53.5
Step-by-step explanation:
Let r = cost of regular
f = cost of fluffy
(1) 3r + 9f = 84 (2) 4r + 2f = 53.5
4 x (1) 12r + 36f = 336
-3 x (2) <u> -12r - 6f = -160.5</u>
30f = 175.5
f = $5.85 = cost for fluffy slime
4r + 2(5.85) = 53.5
4r + 11.7 = 53.5
4r = 41.8
r = $10.45 = cost for regular