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3 years ago

If a gas tank of a large truck holds 64 gallons of gas if the tank is 5/8 full how many gallons of gas is in truck

Mathematics

1 answer:

maria [59]3 years ago

7 0

64/1×5/8=320/8. 320÷8=40. There is 40 gallons of gas in the truck

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A patient is given a 100-milligram dosage of a drug that decays exponentially at a rate of 11% per hour. The doctor wants to kno

I am Lyosha [343]

Answer:

This is an example of exponential decay (somewhat similar to half-life).

If it decays at 11% per hour we can calculate its half-life by this formula:

half life = [ time • ln (2) ] ÷ ln (beginning amount ÷ ending amount)

where "ln" means natural log

half life =[ 1 hour * .69315] / ln (100 / 89)

half life =[.69315] / ln (1.1235955056)

half life =[.69315] / 0.11653381624

half life = 5.9481 hours

We need "lambda" "λ" (the decay constant) which equals

λ = ln(2) / half-life = .693147 / 5.9481 = 0.1165325062

Now we need a formula for the time required:

time = ln (Nt ÷ N0) ÷ -λ where No = beginning amount (100 milligrams) Nt = ending amount (15 milligrams)

time = ln (15 ÷ 100) ÷ -0.1165325062

time = ln (.15) / -0.1165325062

time = -1.8971199849 / -0.1165325062

time = 16.2797492885 hours

Source: https://www.1728.org/halflif2.htm

Step-by-step explanation:

4 0

3 years ago

The sum of three consecutive even integers is 36. Let x represent the first integer, x + 2 represent the second integer, and x +

Oduvanchick [21]

34+2 might be the the answer.. I'm not positive

just something to think about

7 0

3 years ago

Only answer if you are 100% sure

Hatshy [7]

Answer:

$t=\frac{x}{v} = \frac{234 miles}{70 miles/h} = 3.34 h$

t= 03:21 h

Step-by-step explanation:

A constant speed means that it does not change over a period of time and direction of motion. A simple formula, for this case (constant speed)

$v =\frac{x -xo}{t-to}$ where x is distance and t time. The subtract is final value minus initial value

If xo=0 miles and to=0 h, then

$v=\frac{x}{t}$

We have distance, and speed so we need to calculate the time (how long)

$t=\frac{x}{v} = \frac{234 miles}{70 miles/h} = 3.34 h$

t= 03:21 h

reference :https://www.timecalculator.net/time-to-decimal

8 0

3 years ago

Will give Brainliest!! I need help tbh, prize is brainliest. (no links-)

Anika [276]

C 24 units x 14 units hope this helps

4 0

3 years ago

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Suppose Charli D'Amelio posted 42 videos to TikTok. If the ratio of dance trend videos to all other videos is 2:5, how many of t

tankabanditka [31]

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3 years ago