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klio [65]
3 years ago
12

How long will it take a rocket traveling at 8 km/s to reach 20 km?

Mathematics
1 answer:
Lunna [17]3 years ago
7 0

Answer:

2.5 km/s

Step-by-step explanation:

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Biologists have found that the number of chirps some types of cricket make per minute depends upon the temperature this relation
Alex Ar [27]

Answer: Crickets make 172 chirps/min at 80 degrees Fahrenheit

Step-by-step explanation:

Step 1

Using the point slope formulae for Linear functions , we have that

y - y1 = m(x - x1)

where x  and y are two points  representing the  temperature and chirps /min respectively

And  

m= slope

Step 2 : Finding the slope , m

where x1=60

           y1=92

           x2= 75

           y2=152

m= (y2-y1)/ (x2-x1)

= (152- 92)/(75-60)

=60/15 =4

Bringing down the point/slope formula and imputing the known values to find our equation to show the relationship cricket make per minute and  the temperature

y - y1 = m(x - x1)

y - 92= 4(x - 60)

y - 92 = 4x -240

y = 4x - 240 + 92

y = 4x - 148

Step 3

To find the number of chirps be per minute (y) if the temperature is 80 degrees Fahrenheit( x)

y = 4(80) - 160

y = 320 - 148

y = 172 chirps/min at 80 degrees Fahrenheit

6 0
3 years ago
A bee flies 6 feet per second directly to a flowerbed from its hive. The bee stays at the flowerbed for 11 minutes, and then fli
zhenek [66]

Did you ever get the answer

4 0
3 years ago
Which describes the correct way to convert minutes hours
masha68 [24]

60 minutes=1 hour, so to convert minutes to hours,<em> divide by 60.</em>


5 0
3 years ago
Read 2 more answers
1) Eduardo has five friends, Alfalfa, Bernie, Corey, Dominik, and Elsa He is going to select two of them to go
Bumek [7]

Answer: he can make 3 groups of 2 first group him and Alfalfa second group Bernie and Corey the third group Dominik and Elsa.

Step-by-step explanation:

7 0
3 years ago
Jay King, owner of a local Bed and Bath Store knows that his customers will only pay at most, $299 for a blow up bed. Assuming J
Roman55 [17]
If you would like to know the price Jay can pay the manufacturer for the blow up bed, you can calculate this using the following steps:

100% + 40% = 140%

140% of x is $299
140% * x = 299
140/100 * x = 299      /*100/140
x = 299 * 100 / 140
x = $213.6

40% of $213.6 = 40% * 213.6 = 40/100 * 213.6 = 85.44
$213.6 + $85.44 = $299

The correct result would be $213.6.
6 0
3 years ago
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