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3 years ago

6

It is March 30th and your project is due in about 7 weeks which of the following is the most accurate due date for your project

2 answers:

NNADVOKAT [17]3 years ago

6 0

7 weeks = 7 x 7 = 49 days.
March has 31 days so from March 30 to March 31: 1 day
April has 30 days.
31 days already
49 - 31 = 18
so May 18 is the most accurate due date

emmainna [20.7K]3 years ago

5 0

Hi Scouttlaura, I think the most accurate due date would be 11th May because If you take a look at a calendar, just count 7 weeks and u can get the answer (which is 11th May). Enjoy!

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Good morning

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B: (1, 5)

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2 years ago

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Answer:

16 mph

Step-by-step explanation:

You should first form equations related to this information

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The speed to ride a bike for Tamara will be= x+4 mph

To cover a distance of 80 miles, Samantha takes 1 hour longer than Tamara

Introduce the formula for time; time=distance/speed=D/S where D is distance in miles and S is speed in miles per hour

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<u>Time taken by Samantha</u>

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<u>Equation for difference in time</u>

$=\frac{80}{x} -\frac{80}{4+x} =1$

Solve the equation for difference in time to get value of x which is samantha speed

$=\frac{80}{x} -\frac{80}{x+4} =1\\\\\\=80(4+x)-80(x)=x(4+x)\\\\\\=320+80x-80x=4x+x^2\\\\\\=x^2+4x-320=0$

Solve quadratic equation by the quadratic formula where a=1,b=4 and c=-320

x=(-b±√b²-4ac)÷2a

x=(-4±√4²-4×1×-320)÷2×1

$x=\frac{-4+/-\sqrt{4^2-4*1*-320} }{2} \\\\\\x=(-4+/-\sqrt{1296} )/2\\\\\\x=\frac{-4+36}{2} =\frac{32}{2} =16$

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3 years ago