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Bingel [31]
2 years ago
15

Mrs.Cho drives 45 miles in 1 hour. If her speed stays constant, how many hours will it take for her to drive 405 miles?

Mathematics
1 answer:
mafiozo [28]2 years ago
4 0

Answer:

9 hours

Step-by-step explanation:

405 divided by 45 mph which gives you the answer of 9 hours total

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It took a race car driver 3 hours and 15 minutes to go 500 miles. What was his mean rate of speed, to the nearest tenth of a mil
WINSTONCH [101]
In order to calculate rate or average speed you divide miles by time

I got 153.8 by dividing 500 by 3.25 (the .25 is because 15 minutes is 1/4 of 60) hope this helped!!
4 0
3 years ago
One student can paint a wall in 20 minutes. Another student can paint the same wall in 30 minutes. Working together, how long wi
Katarina [22]

1) in one minute for first  wiil be 1/20

the other 1/30, it means that  A paint in one minute  1/20 and B 1/30 then   A+B in one minute 1/20 + 1/30 = 3+2/60 = 5 / 60,  5/60 = 1/12

if in one min they make 1/12 then  in 12  min they  paint all the wall

5 0
3 years ago
What is the solution to 5a-15+9a=3a+29
pogonyaev

5a-15+9a=3a+29

We simplify the equation to the form, which is simple to understand

5a-15+9a=3a+29

We move all terms containing a to the left and all other terms to the right.

+5a+9a-3a=+29+15

We simplify left and right side of the equation.

+11a=+44

We divide both sides of the equation by 11 to get a.

a=4

3 0
3 years ago
Read 2 more answers
A six-sided fair die and an eight-sided fair die are rolled together. What is the probability of getting numbers whose sum is a
aalyn [17]
There are 48 possible outcomes in this situation, and of those outcomes, the ones whose sums are a multiple of three are;
12, 21, 15, 51, 24, 42, 33, 18, 27, 36, 63, 45, 54, 48, 57, and 66. So, that is 16 out of 48 possibilities, or 16/48, which simplifies to 1/3. Written as a percent, the probability of getting numbers whose sum is a multiple of three is 33.33%.

Hope this is helpful! :)
3 0
3 years ago
Read 2 more answers
If y(x)=4x what is x when y(x)=4?​
Fofino [41]

Answer:

1

Step-by-step explanation:

y(x)=4x

y(x)=4

<=>4x=4

<=>x=1

4 0
2 years ago
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