Answer:
3(2+x)=0
Step-by-step explanation:
<u>Here are some vocab words:</u>
Product: Multiplication
Sum: Addition
"A number": x
3(2+x)=0
Percent that are girls = 100-40 = 60%
As a decimal 60% is 0.6.
Answer:
32ft of chain divided by 14ft pieces... that's two pieces of chain
Step-by-step explanation:
Let the speed of the first train be v mph. Then the speed of the second train is:
(v + 50) mph.
Distance traveled by the first train from 3pm to 7pm = 4v miles.
The second train travels 4v miles in 2 hours (from 5pm to 7pm). Therefore the speed of the second train = (4v)/2 = 2v.
However the speed of the second train is also given by (v + 50) mph.
v + 50 = 2v
v = 50.
The speed of the first train is 50 mph and the speed of the second train is 100 mph.