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Jet001 [13]
2 years ago
10

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
liubo4ka [24]2 years ago
3 0

Answer:

that looks correct but if not it would be B

Step-by-step explanation:

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If Alice walks 4 miles in 50 minutes, then Alice will walk how far in 80 minutes if she walks at the same speed the whole time?
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Answer:

70/3=23.33 minutes/mile. 110/23.33=4.714 miles.

Step-by-step explanation:

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What Could Medical Marijuana Help Cure?
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If u r not interested in the explanation jump to the end ***

1. We assume, that the number 53.55 is 100% - because it's the output value of the task. 
2. We assume, that x is the value we are looking for. 
3. If 53.55 is 100%, so we can write it down as 53.55=100%. 
4. We know, that x is 15% of the output value, so we can write it down as x=15%. 
5. Now we have two simple equations:
1) 53.55=100%
2) x=15%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
53.55/x=100%/15%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 15% of 53.55

53.55/x=100/15
(53.55/x)*x=(100/15)*x       - we multiply both sides of the equation by x
53.55=6.6666666666667*x       - we divide both sides of the equation by (6.6666666666667) to get x
53.55/6.6666666666667=x 
8.0325=x 
x=8.0325
*******
now we have: 
15% of 53.55=8.0325.
the total price was 53.55+8.0325=61.5825 the price before the discount
61.5825 - 38 = 23.5825 ~ 23.58
8 0
2 years ago
Read 2 more answers
in a car race feild(round track that is 500m diameter an observer was starting point and the race started a red car finished 5 l
Eddi Din [679]

Answer:

Distance between  the observer and the red car is 250 Sin \frac{\pi}{3}t

Step-by-step explanation:

Diameter of field = 500 m

Radius of field =\frac{Diameter}{2}=\frac{500}{2}=250 m

Let R be the radius and the speed at which the car completes race be w

So,w=\frac{2\pi}{T}

Car finished 5 laps in minutes = 30

Car finished 1 lap in minutes = \frac{30}{5}=6

So, w=\frac{2\pi}{6}=\frac{\pi}{3}

Refer the attached figure

Angle between car and observer = wt

So, Distance between  the observer and the red car is give as A sin wt

So, Distance between  the observer and the red car=250 Sin \frac{\pi}{3}t

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