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AnnZ [28]
3 years ago
10

Geoffrey ran 13.5 miles in 1.5 hours. What was his speed in miles per hour?

Mathematics
2 answers:
Vlad1618 [11]3 years ago
8 0

Answer:

0.0025 miles per second

Step-by-step explanation:

AleksAgata [21]3 years ago
3 0
9 miles per hour


13.5
___
1.5
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a silk worm wind ts cocoon out of one long slik fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their
Serhud [2]
Since the number ranges between 3 and 10, an equation can't be made because the number is always unknown or can be different every time
4 0
3 years ago
In countries that use the metric system of measurement, corn yields are sometimes expressed in quintals per hectare (q/ha) inste
Fittoniya [83]

Answer:

The answer is below

Step-by-step explanation:

Different countries have different metric system of measurement, but the metric system of measurement accepted all over the world is the international system of unit (SI unit)

1 quintal =  220.462 lbs and 1 bushel of corn = 56 lbs.

151 q/ha = (151 × 220.462) lbs/ha = 33289.762 lbs/ha

But 1 hectare = 2.471 acre, hence:

33289.762 lbs/ha = \frac{33289.762\ lbs}{1\ ha*\frac{2.471\ acre}{1 \ ha} } =13472.182\ lbs/acre

Since 1 bushel of corn = 56 lbs, hence:

13472.182\ lbs/acre=\frac{13472.182\ lbs*\frac{1\ bushels}{56\ lbs} }{acre}=240.6\ bushels/acre = 240.6 bu/ac

For a Margin of Error: +/- 1 bu/ac, the bushels per acre = (239.6 bu/ac, 241.6 bu/ac)

5 0
3 years ago
Interested in the number of hours a day the typical student studies at his university, Paul decides to form several samples of s
hjlf

Answer:

unbiased sample values

Step-by-step explanation:

Unbiased sampling involves eliminating any form of bias in the method of selection of participants in a study in order to draw a conclusion about the population.

Paul had introduced bias in the sampling that out to look at the number of hours a day the typical student studies by introducing the variable of studying during the final exam period.

Most likely all student will study during the final exam period. This will not truly represent the study pattern of the sample population and equal chance of selection of study hours of the students. Hence paul had violated the requirement of unbiased sample values for probability sampling by not doing a random selection or systematic random selection

7 0
3 years ago
Help me ASAP bigger reward if you help
insens350 [35]

Answer:

x=−15+√10 or x=−15−√10

Step-by-step explanation:

Let's solve your equation step-by-step.

(x+15)2−10=0

Step 1: Simplify both sides of the equation.

x2+30x+215=0

For this equation: a=1, b=30, c=215

1x2+30x+215=0

Step 2: Use quadratic formula with a=1, b=30, c=215.

x=−b±√b2−4ac/2a

x=−(30)±√(30)2−4(1)(215)/2(1)

x=−30±√40/2

x=−15+√10 or x=−15−√10

8 0
3 years ago
​There are two types of fish in a lake. These are carp and pike.
cupoosta [38]

Answer:pike are 250 ; from 120+16=136 and 34000/136 is 250

Step-by-step explanation:

5 0
3 years ago
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