A parallelogram with an area of 160.5 in has the height of measures 7.5 in find the length of the base
2 answers:
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Answer:
x=3, y=-1
Step-by-step explanation:
Double the first equation, then add the second
6x+2y=16
+ 2x-2y=8
The y's cancel each other out.
8x=24
x=3
Solve for y
6-2y=8
2y=-2
y=-1
Double check:
6(3)+2(-1)=16
18-2=16
Yay!
To solve this problem you must apply the proccedure shown below:
1. You must apply the Law of Cosines, as you can see in the figure attached. Then:
- The first ship travels at in for two hours. Therefore, the side
is:
- The second ship travels at for
. Therefore, the side
is:
- Now, you can calculate :
The answer is:
