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Zigmanuir [339]
3 years ago
8

Sally can paint a room in 9 9 hours while it takes steve 4 4 hours to paint the same room. how long would it take them to paint

the room if they worked​ together?
Mathematics
1 answer:
aliya0001 [1]3 years ago
7 0
If it is 99 and 44 it would take 55 I guess but if it is 9.9 and 4.4 then it would 5.5 hours
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Finish multiplying<br> 10/3 ⋅11/12?
Mazyrski [523]
When multiplying fractions, just multiply straight across

10 x 11 = 110
3 x 12 = 36

110/36 is your answer

3 1/18 is simplified mixed fraction


hope this helps
5 0
3 years ago
Read 2 more answers
A health study tracked a group of person for five years. At the beginning of the study, 20% were classified as heavy smokers, 30
Aleks04 [339]

Answer: 0.421

Step-by-step explanation:

Heavy smoker = 20%

Light smoker = 30%

Non smokers = 50%

We can assume that the probability that a non-smoker is going to die in the next 5 years be y.

Since light smokers were twice as likely as nonsmokers to die during the five-year study, the probability will be:

= 2 × y = 2y

Probability for the Heavy smokers will be:= 2 × 2y = 4y

The expected number of people that will die for each in the next 5 years will be:

Non smoker:

= 50% × y

= 0.5 × y

= 0.5y

Light smoker:

= 30% × 2y

= 0.3 × 2y.

= 0.6y

Heavy smoker:

= 20% × 4y.

= 0.2 × 4y

= 0.8y

Total = 0.5y + 0.6y + 0.8y = 1.9y

The probability that the participant was a heavy smoker will be:

= 0.8y/1.9y

= 0.421

3 0
3 years ago
Approximately how many times greater is
katovenus [111]

Answer:

30

Step-by-step explanation:

To compare the numbers, divide the first number by the second number.

(7.4 x 10^8)/(2.5 x 10^7) = (74 x 10^7)/(2.5 x 10^7) = 74/2.5 = 29.6

Answer: 30

3 0
2 years ago
Read 2 more answers
Andrea spent two dollars to make 10 prints from the Photo Booth. Later she spent six dollars to make it 30 prints
schepotkina [342]
If your question is: How much is each print. The answer is 20 cents each
5 0
3 years ago
Need help please right answers
cestrela7 [59]

Answer:

B

Step-by-step explanation:

y-intercept is where x is zero, so we must look at where the y-iterceot is crossed

3 0
3 years ago
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