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solniwko [45]
3 years ago
12

How do you calculate this?

Mathematics
1 answer:
marta [7]3 years ago
4 0
D =5.6 t^2

find t, when d = 1814.4 m

1814.4 = 5.6 t^2
1814.4 /5.6 =t^2
329.89 = t^2
(329.89)^(1/2) = t
t = 18.16

it take 18.16 minutes to travel 1814.4 m.
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Tony runs to keep fit. He wants to run a total of 20 km each week. Here are the
IgorLugansk [536]

Answer:

Tony run 19.5 km last week, so he must have run 0.5 km more, to complete 20km run last week.

Step-by-step explanation:

Distance Tony ran last week are

6.25 km

4 km 750 m

872 km (<em>Note: This would be 8 </em>\frac{1}{2}<em> km and not 872 km</em>)

We will add all the distances to check if they sum up to 20km or not.

First we will convert 4 km 750 m into km

We know that 1000 m = 1 km

So, 1 m = 1/1000 km

750 m = 750/1000 = 0.75 km

Now 4km + 0.75 km = 4.75 km

So, 4 km 750 m = 4.75 km

and 8 \frac{1}{2} km = 8.5 km

Now, finding Distance covered by Tony during last week = 6.25 km + 4.75 km + 8.5 km

= 19.5 km

So, Tony run 19.5 km last week, so he must have run 0.5 km more, to complete 20km run last week.

8 0
3 years ago
Express 2 as a percentage (no links please)​
lys-0071 [83]
2 is equivalent to 200%

Multiply both numerator and denominator by 100. We do this to find an equivalent fraction having 100 as the denominator.
2 × 100/100

= (2 × 100) × 1/100= 200/100

percentage in notation is : 200%
7 0
3 years ago
Hellooopppppppppppppppp
schepotkina [342]

Answer:

150.88

Step-by-step explanation:

just gotta fine the area for each square using the formula base times height with a good old calculator and add them all together, hopefully that's correct

7 0
3 years ago
If you answer 2 questions with working out I'll mark brainliest and say thanks!
masya89 [10]
1) We know, 1 mm = 0.1 cm
 So, 85 mm = 0.1 * 85 = 8.5 cm
 Nearest value would be 9 cm

 In short, Your Answer would be 9 cm

2) 8 pencils = 72 p
So, 1 pencil = 72 / 8 = 9 p

In short, Your Answer would be 9 p

Hope this helps!

8 0
4 years ago
Read 2 more answers
Which of the following is NOT a function?
joja [24]

Answer:

<em>c</em>

Step-by-step explanation:

6 0
3 years ago
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