First let's define variables:
r: reading
s: skimming
We write the system of equations that adapts to the problem:
r + s = 275
(15/10) r + (10/15) s = 355
We solve the system of equations:
r = 206
s = 69
Note: see attached image for system solution.
Answer:
Jayden had to skim 69 pages through

8 0

3 years ago

Evaluate the integral <br> \int (3t-2)/(t-1)dt <br> please which method i should use

Natasha2012 [34]

$\dfrac{3t-2}{t-1}=\dfrac{3(t-1)+1}{t-1}=3+\dfrac1{t-1}$

$\displaystyle\int\frac{3t-2}{t-1}\,\mathrm dt=3\int\mathrm dt+\int\frac{\mathrm dt}{t-1}=3t+\ln|t-1|+C$

8 0

2 years ago

Use the diagram of the right triangle above and round your answer to the nearest hundredth. If measure B= 60 degrees and a = 10

Tamiku [17]

I need you to post a diagram.
However, you are describing a 30 60 90 triangle and here is a good page to learn about those: http://www.1728.org/trig2.htm

3 0

3 years ago

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