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KATRIN_1 [288]
3 years ago
9

a train can either be early on time or late. the probability that the train is early is 0.2 the probability that the train is on

yome is 0.5 work out the probability that the train is late
Mathematics
1 answer:
Feliz [49]3 years ago
3 0

Answer:

0.3 Train is late

Step-by-step explanation:

20% - Train is early

50% - Train is on time

add

0.2 + 0.5 = 0.7

subtract from 1

1 - 0.7 = 0.3

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What is ___- 99=60 Pls answer
lbvjy [14]

Answer:

159

Step-by-step explanation:

Add 99 and 60 to get 159. Now subtract 99 from that and you will have 60.

4 0
4 years ago
Elena has written 3 sports books for kids. One book is about soccer, one is about baseball, and one is about basketball. Elena h
Mamont248 [21]

Answer:

1293 soccer books

Step-by-step explanation:

The tricky part about questions like this is: how do I assign variables to the three types of book?

You get a clue from the sentence, "She sold 3 times as many copies of the soccer book as the baseball book."  The number of soccer books is being described by referring TO the number of baseball books.  Pick a variable and assign it to the item being REFERRED TO!

x = number of baseball books

Then  3x = number of soccer books.  The number of basketball books is the same, so 3x = number of basketball books.  Here's the list...

x = number of baseball books

3x = number of soccer books

3x = number of basketball books

The total of these is 3017, so

x + 3x + 3x = 3017

7x = 3017

x = 431

Ah!  But don't forget to look back at the question:  it asks for the number of SOCCER books!  That's 3x, so 3(431) = 1293.

5 0
3 years ago
24of a nunber is what fraction of the number
goblinko [34]

Answer:

24% can be written as 0.24 which is 24 / 100 or 6/25.

5 0
4 years ago
Read 2 more answers
For the function whose graph is shown, which is the correct formula for the function?
PtichkaEL [24]
A because the y intercept is -1, and the function is absolute value
6 0
3 years ago
What is the value of j(-5)
elena55 [62]

f(x)=\left\{\begin{array}{ccc}2-x&if&x\leq-5\\x+11&if&x > -5\end{array}\right\\\\-5\leq-5\ \text{therefore for}\ x=-5,\ f(x)=2-x\\\\f(-5)=2-(-5)=2+5=7

6 0
4 years ago
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