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3 years ago

13

Two trains are moving towards each other. One train moves at a speed of 50 mph, and the other train travels at 60 mph. How soon

will they meet, if originally the distance between them was 340 miles?

2 answers:

san4es73 [151]3 years ago

6 0

I believe that the trains will meet at three hours and ten minutes but not quite sure

Margaret [11]3 years ago

4 0

I think that they will meet in 3 hours and 11 min but I’m not too sure

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A family pays $228 for theme park admission. They bought 14 tickets. Adult tickets cost $22 each and kids tickets cost $12 each.

Yanka [14]

Many answers. you have to be more specific

5 0

3 years ago

Read 2 more answers

What is the value of the expression shown when x = 5?

sergey [27]

3(2(5)+4)-5
3(10+4)-5
30+12-5
42-5
37

4 0

3 years ago

Help me solve this..! Please!

stiv31 [10]

Answer:

x=2

Solve for x by simplifying both sides of the equation, then isolating the variable.

3 0

3 years ago

3.11 A shipment of 7 television sets contains 2 defective sets. A hotel makes a random purchase of 3 of the sets. If x is the nu

djverab [1.8K]

Answer:

Probability distribution for x:

$P(x=0)=0.3644\\\\P(x=1)=0.4373\\\\P(x=2)=0.1749\\\\P(x=3)=0.0233\\\\$

Step-by-step explanation:

We can model the number of defective sets in the group of TV sets (variable x) as a binomial variable, with sample size=3 and probability of success p=2/7≈0.2857.

The probability of k defective sets in the group is:

$P(x=k) = \dbinom{n}{k} p^{k}q^{n-k}$

So, we have this probabilty distribution for x:

$P(x=0) = \dbinom{3}{0} p^{0}q^{3}=1*1*0.3644=0.3644\\\\\\P(x=1) = \dbinom{3}{1} p^{1}q^{2}=3*0.2857*0.5102=0.4373\\\\\\P(x=2) = \dbinom{3}{2} p^{2}q^{1}=3*0.0816*0.7143=0.1749\\\\\\P(x=3) = \dbinom{3}{3} p^{3}q^{0}=1*0.0233*1=0.0233\\\\\\$

7 0

3 years ago

I need 1-5 and 8 and 9 solved

meriva

Answer:

1. A

2. H

3.B

4. H

5. A

Those are the answers

Step-by-step explanation:

1. 30 - 2(-8)= 46

2. BODMAS applied 6-7 =-1

3. 45/-5=-9

4. Sum is h +73

5.BODMAS applied 60 /6 = 10

8 0

3 years ago