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maxonik [38]
3 years ago
9

Olive’s solar powered scooter travels at a rate of 30 miles per hour. What equation can she use to calculate her distance with r

elation to the time she is traveling? A. miles= hours + 30. B. Miles=30x hours . C. Hours = 30x miles. D. Hours = Miles +30
Plz help I really need it :)
Mathematics
2 answers:
andrezito [222]3 years ago
8 0

Answer:

The answer is m=30x

kirza4 [7]3 years ago
6 0
Suppose time Olive is traveling is x hours.
distance=speed×time
Olive's speed=30 miles per hour
time= x hours
Therefore, Olive's distance at time x will be given by:
distance=30×x= 30x
The right equation is:
Miles=30x
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Movie tickets cost $5.00 for children and $8.00 for adults. On Thursday, the movie thester sold 110 tickets and collected $820.
Aneli [31]
90 adults, 20 kids:
110-90=20
20•5=100
90•8=720
100+720
6 0
3 years ago
Suppose that 3 balls are chosen without replacement from an urn consisting of 3 white and 7 red balls. Assume moreover that the
zimovet [89]

Answer:

P(X1=1, X2=1) = 1/15

P(X1=1, X2=0) = 7/30

P(X1=0, X2=1) = 7/30

P(X1=0, X2=0) = 7/15

Step-by-step explanation:

Let Xi = 1 if the i-th white ball is selected. In this question the 3 white balls are marked 1,2 and 3.

We need to know the possible combination between X1 and X2 i.e. for the white ball 1 and 2 being chosen in the event.

We also need to note that the event is dependent which that after a ball is being chosen, it will not be put back hence affecting the probability of picking the next ball.

Consider all the possible combination between X1 and X2

a) both being chosen P(X1=1, X2=1)

= (3/10) x (2/9) = 1/15

Note that the first probability is the probability before any ball is being picked. The chances for ball white to be pick is 3/10 (3 white ball from the total 10 balls).

After 1 white ball being selected, that ball is not again out back into the urn making white ball 2 and total ball 9. Hence probability of picking another white ball is 2/9

b) only X1 chosen P(X1=1, X2=0)

= (3/10) x (7/9) = 7/30

After the white ball was picked, the probability of white not being pick again is the same as red being picked. Since there is still 7red balls and a total of 9 balls, the probability is 7/9

c) only X2 chosen P(X1=0, X2=1)

= (7/10) x (3/9) = 7/30

The white is not being picked first, making the probability of picking red is 7/10. Then the probability of white being picked is 3/9

d) both not chosen

P(X1=0, X2=0)

= (7/10) x (6/9) = 7/15

In other word only red being chosen. So the first probability is 7 red out of 10 balls (7/10), and the next red ball being picked next is 6/9

7 0
3 years ago
The cost to reserve a banquet hall is $500. The catering cost per guest is $17.50 for the first 40 guests and $14.75 for each ad
Charra [1.4K]

The piecewise function describing the cost C of the reunion are C(x) = 500 + 17.5x, where x <= 40 and  C(x) = 1200 + 14.75(x - 40), where x > 40

<h3>Write a piecewise function describing the cost C of the reunion.</h3>

The given parameters are:

Reserve = $500

Cost per guest = $17.50 for the first 40 guests

Cost per guest = $14.75 for each additional guest

The above means that

C(x) = 500 + 17.5x, where x <= 40

C(x) = 500 + 17.5 * 40 + 14.75(x - 40), where x > 40

Next, we evaluate the functions

This gives

C(x) = 500 + 17.5x, where x <= 40

C(x) = 1200 + 14.75(x - 40), where x > 40

<h3>Use a graphing calculator to graph the function</h3>

To do this, we simply plot each function with its domain

See attachment for the graph of the piecewise functions

Read more about piecewise functions at

brainly.com/question/18499561

#SPJ1

3 0
2 years ago
bill took a nap for 1 1/4 hour on friday and then took a nap for 3/4 hour on tuesday. how much longer was Bill's nap on friday?
sertanlavr [38]
1/2 (2/4) of an hour longer. If you take 1 1/4 and subtract 3/4 you get 2/4=1/2
4 0
3 years ago
Read 2 more answers
Someone please help me with the answer. ASAP
larisa86 [58]

option a is the answer you are which class same question is there for me

7 0
3 years ago
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