Solving for the elapsed time
distance traveled = (speed of first train + speed of second train) * elapsed time
280 miles = (95 mph + 105 mph) * elapsed time
280 miles = 200 mph * elapsed time
elapsed time = 280 miles / 200 mph
elapsed time = 1.4 hours
elapsed time = 1 hour and 24 minutes
It will take 1 hour and 24 minutes for the two trains to be 280 miles apart.
Answer:
5120 cm^2
Step-by-step explanation:
Base area = (18 x 40)/2 = 360 cm^2
Base perimeter = 18 + 41 + 41 = 100 cm
LA = 100 x 44 = 4400 cm^2
surface area = 360 x 2 + 4400 = 5120 cm^2
Answer
Find the cost of the meals before the tip.
To prove
As given
Emily takes her friend Darren out to eat for his birthday.
She pays a total of $45, which includes a 20% tip.
20% is written in the decimal form
= 0.20
Cost of the tip = 0.20 × 45
= $ 9
Thus
Cost of the meals before the tip = Cost of the meal with tip - tip cost
= $45 - $9
= $ 36
Therefore the cost of the meals before the tip is $36 .
Answer: b⁶
Step-by-step explanation:
The for bⁿ can be optained by multiplying 3 and 2. If there is an exponent on the outside of the parenthesis, you multiply it with the exponent on the inside.
(b³)²=b³ˣ²=b⁶
