2 years ago

A cup of coffee contains 140 mg of caffeine. If caffeine leaves the body at 10% per hour, how long will it

Mathematics

1 answer:

ivann1987 [24]2 years ago

6 0

Answer: 5 hours

Step-by-step explanation:

If 10% of 140 is 14. And if 14 mg of caffeine is leaving per hour then it would take 10 hours to completely leave from ones body, but for half of it to leave it would take 5.

You might be interested in

What are the values a, b, and c in the following quadratic equation?<br><br> −6x = −8x2 − 13

lesya692 [45]

Answer:

Quadratic equation follows form: ax^2 + bx + c = 0

a = 8

b = - 6

c = 13

4 0

2 years ago

Simplify completely: (3 - 5i)(6 + i)

ExtremeBDS [4]

Answer:

9+6i

Step-by-step explanation:

3+6=9

5+1=6

8 0

2 years ago

Chad lives in California and makes $59,500 a year. If the median annual income is $61,021 in California and $50,233 in the Unite

sammy [17]

<span>Yes, Chad is likely to qualify, because his yearly income is below the median annual income of California.

</span>

4 0

3 years ago

Read 2 more answers

Identify the initial amount a and the growth factor b in the exponential function. f(x)=620*7.8^x

irinina [24]

620 is the initial amount a, the growth factor b is 7.8, and the time is x.

7 0

2 years ago

Read 2 more answers

What is an equation for the line perpendicular to y=-1/8x+6 that passes through (-3,-10)

Ainat [17]

Answer:

y = 8x + 14

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - $\frac{1}{8}$ x + 6 ← is in slope- intercept form

with slope m = - $\frac{1}{8}$

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-\frac{1}{8} }$ = 8 , then

y = 8x + c ← is the partial equation

To find c substitute (- 3, - 10 ) into the partial equation

- 10 = - 24 + c ⇒ c = - 10 + 24 = 14

y = 8x + 14 ← equation of perpendicular line

4 0

2 years ago