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koban [17]
3 years ago
8

A dolphin swam 712 miles in 38 hour. What was its average speed in miles per hour (mph)?

Mathematics
1 answer:
Vilka [71]3 years ago
4 0
To find miles per hour you divide the number of miles by the number of hours

(7 1/2)/(3/8) = (15/2)(8/3) = 20 mph
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Two items cost $72.49 and $36.24. How much would you pay if there is a discount of 25% on both items?
k0ka [10]

Answer:

$81.5475 or to round it $81.55

Step-by-step explanation:

Simple steps:

1) Add the 2 items

2) Multiply by 0.75. because 25% discount = 75% of item

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3 years ago
What is 2.9% of 1000
777dan777 [17]

' 2.9% ' means ' 0.029 '

' of ' means ' times '

' 2.9% of 1,000 ' means ' 0.029 x 1,000 '

   0.029 x 1,000 = <em>29</em>


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3 years ago
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Jen knows that (-1, 41) and (5, 41) lie on a parabola defined by the equation y=4x^2-16x+21. How can I find the coordinates of t
andreyandreev [35.5K]
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