Answer:
24=x
Step-by-step explanation:
1/2x+4=2/3x
Subtract 1/2 x from each side
1/2x-1/2x+4=2/3x-1/2x
4 = 2/3x-1/2x
We need to get a common denominator of 6 on the right
4 = 2/3x *2/2 = 1/2x *3/3
4 = 4/6 x - 3/6 x
4 = 1/6 x
Multiply each side by 6 to isolate x
4*6 = 1/6x *6
24 =x
The answer is A.
You can get this by modeling the function. It's slope and y intercept will yield the equation y = -.5x +1.5. Then you can try the ordered pairs in that, all of which work.
Answer:
Tip: 4,2
Total cost: 32,2
Step-by-step explanation:
Tip: (28×15)÷100 = 4,2
Total cost: Tip + original money
--> 4,2 + 28 = 32,2
Answer:
y= 7^-t
Step-by-step explanation:
Equation for exponential decay:
An equation represents exponential decay if a term between 0 and 1 is elevated to the independent variable.
In this question:
First option 4 is elevated, so not exponential decay.
Second option:
, thus, the second option represents exponential decay.
