A variable without a number in front is considered to be 1 therefore,
1 + 4 + 6 = 11
then you just add the variable afterwards to make it
<span><span>
11x
</span>
hope this helps :)</span>
Answer:
- 3 hours
- 1 hour 45 minutes
- 300 miles
Step-by-step explanation:
1. The trains are moving toward each other at a total speed of 50 +20 = 70 miles per hour. Together, they cover the 210 mile distance in ...
time = distance/speed
time = 210 mi/(70 mi/h) = 3 h
The trains collide after 3 hours.
__
2. The fly is closing with the freight train at a speed of 100 +20 = 120 miles per hour. Together, the fly and the train cover the initial 210 mile distance in ...
(210 mi)/(120 mi/h) = 7/4 h = 1 hour 45 minutes
The fly first meets the oncoming freight train after 1 h 45 min.
__
3. The fly is flying for all three hours before the trains collide, so, at 100 miles per hour, will fly 300 miles.
1. use 6,8, 10 and then 7, 9,13
2. A=30, B= 70, b = 4
Answer:
the drink costs $1.25
Step-by-step explanation:
In 4 days, Leah spent $20 -15 = $5. That is, each day, she spent ...
$5.00/4 = $1.25
If all she bought was a sports drink, then the drink cost was $1.25.
Answer:
i went with mean is less than median
Step-by-step explanation:
other website lol