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katrin2010 [14]
3 years ago
7

Please help!! if you could show work too that would be amazing :))

Mathematics
1 answer:
icang [17]3 years ago
5 0

Answer:

Was there suppose to be a attached image?

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Boat travel 27 miles in two hours how many miles travel in 1/2 hours
Sloan [31]

Answer:

6.75

Step-by-step explanation:

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3 years ago
Find the radius of a circle if it’s circumference is numerically equal to its area
kotykmax [81]

Answer:

Step-by-step explanation:

hello :

if : r  the radius  ( r ≠0)

the circumference is :  2πr

the area is : πr²

so : πr² = 2πr

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3 years ago
Sophia has an ear infection. The doctor prescribes a course of antibiotics. Sophia is told to take 500 mg doses of the antibioti
julsineya [31]

Answer:

see below

Step-by-step explanation:

Dosage= 500 mg

Frequency= twice a day (every 12 hours)

Duration= 10 days

Number of dosage= 10*2= 20

residual drug amount after each dosage= 4.5%

We can build an equation to calculate residual drug amount:

d= 500*(4.5/100)*t= 22.5t, where d- is residual drug, t is number of dosage

After first dose residual drug amount is:

  • d= 500*0.045= 22.5 mg

After second dose:

  • d= 22.5*2= 45 mg

As per the equation, the higher the t, the greater the residual drug amount in the body.

Maximum residual drug will be in the body:

  • d= 20*22.5= 450 mg at the end of 10 days

Maximum drug will be in the body right after the last dose, when the amount will be:

  • 500+19*22.5= 927.5 mg
5 0
3 years ago
Refer to the variable on the number of miles driven. the mean is 830.11 and the standard deviation is 42.19 miles. estimate the
Alex787 [66]
The proportion of buses traveling more than 900 miles would be 0.0485; multiply this by the total number of buses and you will have your answer.

We find the z-score associated with 900 miles:

z = (X - μ)/σ = (900-830.11)/42.19 = 1.66

Using a z-table (http://www.z-table.com) we see that the area under the curve to the left of this, less than this, is 0.9515.  This means that the area under the curve to the right of this, greater than this, would be 1-0.9515 = 0.0485.
8 0
3 years ago
Rule for X-5,6,7,8 Y-20,24,28,32. What is rule for Y?
Lina20 [59]
<h2>The rule for x is + 1, and the rule for y is + 4.</h2>
3 0
3 years ago
Read 2 more answers
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