A bus and a car leave from the same city traveling in opposite directions. The bus leaves 2 hours before the car does. The bus travels at a steady speed of 50 mph while the car travels at 70 mph. After how many hours will the bus and car be 800 miles apart?If h represents the number of hours the bus travels, then which of the following expressions represents the number of miles the car travels?
70(h + 2)
70(h - 2)
70h
Answers
Answer:
After 7.8 hours (7 hours 48 min.) will the bus and car be 800 miles apart
70(h-2) expression represents the number of miles the car travels.
Step-by-step explanation:
If h represents the number of hours the bus travels.
In the question it is said that the bus leaves 2 hours before the car does
Therefore car travels (Time) = ( h-2 )
car's speed = 70 mph,
Distance = speed × time = 70(h-2)
70(h - 2) expression represents the number of miles the car travels.
If we want to find the number of hours will the bus and car be 800 miles apart we can solve it as :
50h + 70(h-2) = 800
50h + 70h - 140 = 800
120h = 800 + 140
120h = 940
h = 940 ÷ 120 = 7.833... = 7.8 hours (7 hours and 48 min.)
Ans. After the bus left the city, after 7.8 hours the car and the bus will be 800 miles apart.
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Answers
Answer:
The length of the altitude CD is 3.3 units .
Option (D) is correct .
Step-by-step explanation:
By using the pythagorean theorem
Hypotenuse² = Perpendicular² + Base²
Now in ΔCDA
Hypotenuse = CA = 6 unit
Base = AD = 5 units
Perpendicular = CD
Put all the values in the above
6² = CD² + 5²
As
6² = 36
5² = 25
CD² = 6² - 5²
= 36 - 25
CD² = 11
CD = 3.3 unit (Approx)
Therefore the length of the altitude CD is 3.3 units .
Option (D) is correct .
hypotenuse=6
leg₁=5
leg₂=CD
Pythagoras theorem:
hypotenuse²=leg₁²+leg₂²
6²=5²+CD²
CD=√(6²-5²)
CD=√(36-25)
CD=√11≈3.3166....≈3.3
Answer: D. 3.3
Answers
Answer:
m=12
Step-by-step explanation:
Answer:
m=12
explanation:
Answers
Answer:
Step-by-step explanation:
The response variable is also called as the outcome variable or dependent variable. The changes occurring in the response variable is due to changes in the independent variable.
In the given situation, the response of new fertilizer on the tomato plants is to be checked. Hence, the growth of tomato plants is the response variable. The new fertilizer is the independent variable.
b. expectation : fulfillment
c. fear : accident
d. warning : fate
Answers
final answer is I would say B
Mon | 0.3
Tues | 15%
Wed | 1/6
Thurs | 0.2
Fri | 1/8
ON WHICH DAY DID YOU SPEND THE LEAST AMOUNT OF TIME ON THE RUNNING MACHINE?
Answers
Answer: On Friday, he spend the least amount of time on the running machine.
Step-by-step explanation:
Since we have given that
Monday 0.3 =
Tuesday = 15%
Wednesday =
Thursday =
Friday =
Hence, we can compare all the days, and we get that
On Friday, he spend the least amount of time on the running machine.
Answers
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