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GuDViN [60]
3 years ago
12

Please help please please please

Mathematics
1 answer:
slamgirl [31]3 years ago
8 0
If two events are dependent on each other you have to multiply the probability of the first event times the probability of the second event. 
first count all the marbles here there are 21
you are asked about picking two green marbles there are 7 out of the 21 total.
The first event would be 7/21
The second event would be 6/20 (since you didn't replace and you took out a green one)
now multiply your two fractions together:
and you get 1/10. 
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Mr White can travel for 6 hours while taking 3 breaks of 10 minutes each. Once, he had to travel for 36 hours. How many minutes
alexgriva [62]

180 min

Explanation:

3 × 10 min = 30 min

In 6 hours, Mr. White takes a total of  30 min  in breaks.

36 h = 6 h × 6  

In  36 hours , there are  6  sets of  6 h .

Hence we can multiply the number of minutes in breaks taken in  

6 h ours by  6  to obtain the number of minutes in breaks taken in  36 h ours.  

30 min × 6 = 180 min

5 0
3 years ago
The width of the rectangle below is 9 cm, and its length is 17
Orlov [11]

Answer:

Area=153 cm²

Step-by-step explanation:

Length × Width= Area

17×9=153

4 0
3 years ago
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15x + 2x can be written as _____.<br> x(15 + 2x)<br> (15 + 2)x<br> (15x + 2x)x
Triss [41]
2x+15x you can just switch the two.
6 0
3 years ago
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Sheila buys two concert tickets from her friend she pays $90 for the two tickets she looks at the tickets and sees that each tic
Maru [420]

Cost of two tickets that Sheila paid to her friend = $ 90

Actual price of 1 ticket = $ 52.50

So, actual price of 2 tickets = 52.50\times2=105

Hence, markdown or discount Sheila's friend gave her is =

105-90=15

The answer is $15.


8 0
3 years ago
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Write an equation in slope-intercept form of the line that passed through (-3, 4) and (1. 4)
il63 [147K]

Answer:

y= 0x+4

Step-by-step explanation:

This is a horizontal line, since both coordinate pairs end in 4, so the slope is 0. The y-intercept is 4 because each point is 4.

6 0
2 years ago
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