Answer:
200x43%=86
Step-by-step explanation:
You would multiply 12.50 by 4 because thats how much each lesson is and you go 4 times a month. You then multiply this by 12 because there are 12 months in a year. The answer comes out to $600 a year. Hope this helps. XD
Answer: <u>110 feet per second</u>
Step-by-step explanation:
In this problem we will assume that the car at 45 miles per hour is moving into the x direction with a high of 100 feet, and the train is going in the y direction, so they trajectories will made an angle of 90º.
Now we can calculate the speed of the trains in feet per second so:


So we can make a right triangle with sides 66 and 88 and the hypotenuse will be the rate that the trains will separate per second so:


Is important to have in mind that the initial high is not going to change how fast the trains will separate, however, if we are going to calculate the distance we should have it in the calculations.
The answer is 5 because you take away an x for 3x to get 2x so 2x=10
Then divide the 10 by 2 to get x=5
Answer: If you are given ordered pairs and asked if they are solutions to the equation, substitute the values in for X and Y. See if the 2 sides equal. If they do equal, then that ordered pair is a solution. If they don't equal, then the ordered pair is not a solution.
Step-by-step explanation: