Let x be the distance from Syracuse where they pass. The first car travels a distance of x in time x/65 while the second car travels a distance 240-x in time (240-x)/55. They pass at the same time after leaving their starting points so x/65=(240-x)/55.
Cross-multiplying we get: 55x=65(240-x)=15600-65x, 120x=15600, x=15600/120=130 miles.
They pass 130 miles from Syracuse.
Hello!
<u><em>Answer: =1944 *The answer must be have a positive sign*</em></u>
Explanation:
Multiply by the numbers. Product it's going to be multiply by the numbers, fractions, decimals, factors, and multiples.
243*8=1944
1944/8=243
1944/243=8
Hope this helps!
Thanks!
Have a great day!
-Charlie
Answer:
Correct choice is B
Step-by-step explanation:
Let a, b, c and d be the trapezoid's sides lengths.
The perimeter of the trapezoid is the sum of all sides lengths, thus,
If each side length is increased by a factor 7, then new sides have lengths 7a, 7b, 7c and 7d. The perimeter of new trapezoid is
Use the distributive property for this expression:
Since 
then
