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3 years ago

11

Shamus owes his parents $162 he pays them 60% of the $45 he earns as a soccer referee each week. how many weeks will it take sha

mus to pay all of the money he owes his parents?

2 answers:

guajiro [1.7K]3 years ago

5 0

Answer:

24

Step-by-step explanation:

so knnd

kobusy [5.1K]3 years ago

5 0

Answer: 24 is wrong

Step-by-step explanation:

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A small rocket is fired from a launchpad 15 m above the ground with an initial velocity left angle 400,450,600 right angle m/s.

vivado [14]

Answer:

a)

v=<400, 450+3t, 600-9.81t> m/s

r=<400t, 450t+3 $t^{2}$ /2, 15+600t-9.81 $t^{2}$ /2> m/s

b) attach file

c) t=122.324s

d) z=18369.9854 m

Step-by-step explanation:

a)

The equation for velocity of each component is v= $v_{0}$ +at, in this case the x-axis component has acceleration 0 $\frac{m}{s^{2} }$ , the y-axis component has acceleration 3 $\frac{m}{s^{2} }$ and the z-axis component has -g $\frac{m}{s^{2} }$ , where g=9.81 $\frac{m}{s^{2} }$ .

The equation for position of each component is x= $x_{0}$ + $v_{0}$ t+a $t^{2}$ /2,

with < $x_{0}$ , $y_{0}$ , $z_{0}$ >=<0,0,15>.

c) This time is t when z=0, with positive sign.

d)Solving the equation $V_f^{2}$ = $V_o^2$ + 2*a*(z- $z_{0}$ ) for z, with $V_f$ =0.

3 0

3 years ago

A cable car starts off with n riders. The times between successive stops of the car are independent exponential random variables

nikitadnepr [17]

Answer:

The distribution is $\frac{\lambda^{n}e^{- \lambda t}t^{n - 1}}{(n - 1)!}$

Solution:

As per the question:

Total no. of riders = n

Now, suppose the $T_{i}$ is the time between the departure of the rider i - 1 and i from the cable car.

where

$T_{i}$ = independent exponential random variable whose rate is $\lambda$

The general form is given by:

$T_{i} = \lambda e^{- lambda}$

(a) Now, the time distribution of the last rider is given as the sum total of the time of each rider:

$S_{n} = T_{1} + T_{2} + ........ + T_{n}$

$S_{n} = \sum_{i}^{n} T_{n}$

Now, the sum of the exponential random variable with $\lambda$ with rate $\lambda$ is given by:

$S_{n} = f(t:n, \lamda) = \frac{\lambda^{n}e^{- \lambda t}t^{n - 1}}{(n - 1)!}$

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3 years ago

Four bread rolls weigh a total of 3/5 pounds. houw much does each bread roll weigh?

NikAS [45]

Answer:

each bread roll weighs 3/20 pounds. (you can also write it as 0.15 pounds)

Step-by-step explanation:

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3 years ago

Of all the people that attend movies, 67% are in the 12-29 age group. At one theater, 300 people attended a showing of a certain

aleksklad [387]

Ratio and proportion x/300=67/100 cross multiply 100x= 20100 x= 201 students hope this helps

5 0

3 years ago

Read 2 more answers

What’s the best answer?

kow [346]

I think the last one

5 0

3 years ago