Answer:
9.5
Step-by-step explanation:
Since he did 38 miles in 4 hours, we need to divide it by 4 to find mph. 38/4 = 9.5
therefore, his speed his 9.5 mph
I hope this helped, and if my answer was right, please mark this answer as brainliest! Thank you!
35-15 is 20. and 43-26 is 17. These two are different because you are regrouping in the 2d problem, as in the first, you just subtract.
Answer:
the speed of sound is 12 miles per minute
Step-by-step explanation:
To know the speed we have to divide the distance by the time because the speed of sound is constant and we have to use a formula of uniform rectilinear motion
Uniform rectilinear motion: When an object travels at a constant speed with zero acceleration it is known as uniform rectilinear motion
The distance it gives us is 1 mile and the time it gives us is 1/12 minute
v = speed
v = 1mi / (1/12 m)
v = 12 mi/m
in the result as we can see we have a whole number (12)
the speed of sound is 12 miles per minute
When pam saves 2, brother saves 5
so if Pam has 40
40/2 (the number of dollars Pam saves) = 20
20 x 5 = 100 ( the number of dollars her bro saves)
her bro has 100 dollars
hope this helps
basically divide 2 from 40 and then multiply the answer with 5, and you get the number of money her bro saves
hope this helps