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evablogger [386]
3 years ago
5

The box plot shows the total amount of time, in minutes, the students of a class spend reading each day

Mathematics
1 answer:
katrin2010 [14]3 years ago
6 0
2. The median for the data is the correct answer
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Paul went on a bike ride of 30 miles. He realized that if he had gone 8 mph faster, he would have arrived 12 hours sooner. How f
lara [203]

Answer: He actually rode 2 miles per hour on his trip

Step-by-step explanation: Maybe unconventional, but express the time it took, then figure the speed.

Time  = distance /speed  t will represent time, s is the speed:  t = 30/s Use the rime it would have taken at the higher speed to create an equation:

t-12 = 30/s+8   replace the y with the 30/s

30/s -12 = 30/s+8

(s)(30/s -12 ) = (s)(30/s+8 )  Cross multiply to cancel denominators  

(s-8)(30 -12s) = (s-8)(30s/s+8 ) ==> 30s +240 -12s² -96s =30s   Simplify:  

(-1)(-12s² -96s +240 ) =0 ==>  12s² +96s -240  divide all by 12

s² + 8s -20 = 0   Factor and solve for s

(s +10)(s -2) =0    s-2=0   S= 2  

Proof:

30/2 = 15 hours for original trip at 2mph,  

increase speed by 8mph   2 + 8 = 10mph

30 miles at 10mph takes 3 hours; that is 12 hours less than his actual trip.

(Brainilest, please :-)

4 0
3 years ago
HELP PLEASE!!! Find an equation of a line through (√3,12) parallel to the line:
amm1812

Answer:

just put like what oh yea put 72

3 0
3 years ago
Two houses on the same side of the street have house numbers that are consecutive
DochEvi [55]

Answer:

28 and 30

Step-by-step explanation:

'x' = 1st consecutive #

'x+2' = 2nd consecutive #

x + x+2 = 58

2x + 2 = 58

2x = 56

x = 28

x+2 = 30

3 0
2 years ago
Damien need to buy 5 pints of juice
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Ok so what is the question..... question in detail
6 0
3 years ago
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The construction workers are constructing a line of bricks Each brick is 8 inches long. If feet long, how many will the construc
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It would be 1.5 per foot, but how many feet do they want
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