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Kruka [31]
3 years ago
6

A traffic light changes every 30 seconds another traffic light changes every 40 seconds both lights just changed after how money

minutes will both lights change at the same time
Mathematics
1 answer:
BaLLatris [955]3 years ago
7 0

Answer:

120 seconds/2 minutes

Step-by-step explanation:

You need to find the LCM of 30 and 40 which is 120.

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0.6 of the Chang family expenses are for internet service what fraction of the family's expenses is for internet service put the
sattari [20]
0.6=6/10 so after simplifying you get 3/5, hope it helps !!
4 0
4 years ago
What fraction is equivalent to 30/360?
Firdavs [7]

Answer:

1/12

Step-by-step explanation:

Given that

30/360 to lowest fraction equivalent

Now, we can write 30 as 3×10

Also, we can write 360 as 36×10

Then, we have

(3×10)/(36×10)

Then, 10 cancel 10, we are left with

3/36

Also we can write 36 as 12×3

Then, we have

3/(12×3)

Also, 3 cancel 3, we are left with

1/12

Then the lowest fraction is 1 / 12

1/12

4 0
3 years ago
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What is the mean of the set of numbers?
Llana [10]
The mean of your question would be -2.5
3 0
3 years ago
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Consider the following random experiment. First, roll a die and observe the number of dots facing up; then, toss a coin the numb
kipiarov [429]

Answer:

{(1, 0), (1, 1), (2,0), (2,1), (2, 2), (3,0), (3,1), (3,2), (3,3), (4, 0), (4,1), (4,2), (4,3), (4,4), (5,0), (5,1),(5,2), (5,3), (5,4), (5,5), (6,0), (6,1),(6,2), (6,3), (6,4), (6,5), (6,6)}

B.)

{(2,2), (3,2), (4,2), (4,4), (5,2), (5,4), (6,2), (6,4), (6,6)}

Step-by-step explanation:

Sample space :

Die roll, then number of coin tosses based on the outcome of the die roll, then number of heada from the toss(es) is recorded along with the outcome of the die roll.

{(1, 0), (1, 1), (2,0), (2,1), (2, 2), (3,0), (3,1), (3,2), (3,3), (4, 0), (4,1), (4,2), (4,3), (4,4), (5,0), (5,1),(5,2), (5,3), (5,4), (5,5), (6,0), (6,1),(6,2), (6,3), (6,4), (6,5), (6,6)}

Event that the total number of head is even:

{(2,2), (3,2), (4,2), (4,4), (5,2), (5,4), (6,2), (6,4), (6,6)}

3 0
3 years ago
Put the following fractions from greatest to least<br><br> 7/6,3/4,11/12
poizon [28]
3/4, 7/6, 11/12

Comment if you need an explanation as to why :)
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