Answer:
c is the correct answer for this question
Step-by-step explanation:
c is the correct answer for this question
А
1.5
2.5
© 2
V3
Hope this helps.
Answer:
The answer is below
Step-by-step explanation:
a) Let x represent the time taken to drive to see the relatives and let d be the distance travelled to go, hence:
60 mi/h = d/x
d = 60x
When returning, they still travelled a distance d, since the return trip takes 1 h longer than the trip there, therefore:
40 mi/h = d/(x+1)
d = 40(x + 1) = 40x + 40
Equating both equations:
60x = 40x + 40
60x - 40x = 40
20x = 40
x = 40/20
x = 2 h
The time taken to drive there = x = 2 hours
b) The time taken for return trip = x + 1 = 2 + 1 = 3 hours
c) The distance d = 60x = 60(2) = 120 miles
The total distance to and fro = 2d = 2(120) = 240 miles
The total time to and fro = 2 h + 3 h = 5 h
Average speed = total distance / total time = 240 miles / 5 h = 48 mi/h
Answer:
47 weeks
Step-by-step explanation:
you multiply 20 times 5 because he makes 5 dollars and hour and works 20 hours a week, so then you get 100. so he makes 100 dollars in a week. then you divide 100 by 4650 and get 46.5 which rounded up is 47. so he needs to work 47 weeks.
Answer:
(5 + 16)=7 + (4 x 7)
<u>Step by step - explanation:</u>
Solve:
Add the numbers
(5 + 16)= 21.
(4 x 7) = 28 + 7 = 35.
So the result is 21 = 35.
Hope that helps. x
Answer:
186 pounds
Step-by-step explanation:
let x = pounds on Earth
set up a proportion: 
= 
cross-multiply: 21x = 3906
divide by 21: x = 186
