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ella [17]
3 years ago
9

A train traveled from Chicago il to Los Angeles ca in 1 day and 15 minutes. This distance between the two cities is 20153 miles.

How fast was the train going on average
Mathematics
1 answer:
fgiga [73]3 years ago
4 0
831.05, I think that is the correct answer
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A total of 60 children signed up for hockey. There were 33 boys for every 11 girl who signed up. How many of the children who si
Ber [7]
Boys : Girls : Total
33 : 11 : 44

Find the simplest form:
3 : 1 : 4

Set the total to 60 ( so we multiply by 15)
3 x 15 : 1 x 15 : 4 x 15
45 : 15 : 60

Boys  = 45
Girls = 15
Total = 60

Ans: There are 15 girls that signed up
5 0
3 years ago
Larry reads that 1 out of 4 eggs contains salmonella bacteria, so he never uses more than 3 eggs in cooking. If eggs do or don't
aleksley [76]

Answer:

57.8125% or approx. 57.8%

Step-by-step explanation:

There is a 1/4, or 25%, or 0.25 chance that an egg has salmonella.

Thus, there is a 75%, or 0.75 chance that an egg DOESN'T contain salmonella.

Let's find the probability that all 3 of Larry's eggs are free from salmonella. Larry would have to hit that 75% chance 3 times in a row. The chance of that happening is:

0.75 * 0.75 * 0.75 = 0.75^3 = 0.421875

From this, we can deduce that if there is a 0.421875 (42.1875%) chance that all eggs are safe to eat, there must be a...

1 - 0.421875 = 0.578125

...0.578125 (57.8125%) chance that 1 or more of Larry's eggs do have salmonella.

Answer: approx. 57.8% or 57.8125%

7 0
3 years ago
Please help me on this math question?
Whitepunk [10]
M=30° because the right angle and 60 degree angle equal 150 and 180 (degrees in a triangle) minus 150 is 30

n=50° because 40 plus the right angle is 130 then the difference between that and 180 is 50 then n is the vertex angle of the one you found

t=98° because answer n plus the other part to the straight angle including the 112° angle is 68 then the total angle turns to 118 then the final angle turns to 62 via earlier reasoning, then because of another straight angle t=98

use the earlier reasoning to fine the other answers of

p=71°
q=39°

use the angle degrees formula to get Pentagon's maximum angles then use earlier resources

the final answers u should be able to figure out from there and u will never learn unless you do some yourself
5 0
3 years ago
Jackie has cheering practice on Thursday and Friday if it doesn't rain. Thursday there is a 20% chance of rain and Friday there
Mice21 [21]
<span>There is a 20% (or 20/100chance) it will rain on Thursday and there is a 40% (or 40/100) chance it will rain on Friday. In order to find out the probability of it raining both days, we need to multiply these two values. (40/100)(20/100)= 800/10,000= 0.08. We move the decimal over two places to get a percent, so we get an 8% chance it will rain on both Thursday and Friday.</span>
8 0
3 years ago
Colton has n nickels and d dimes. He has no more
pantera1 [17]

Answer:

(`n*0.05)+(d*0.10)<2

Step-by-step explanation:

5 0
3 years ago
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