Answer:#of dimes is 15 # of quarters is 10
Step-by-step explanation:method is elimination my multiplication. First equation is x+y=25 multiply it by -10. Second equation is 10x+25y=400. A quarter is .25 and a dime is .10 but to avoid all decimals I multiplied by 10 but it doesn’t matter because I did it on both sides. Use systematic equation solving to get 15y=150 then y=10. Plug it into the first to get x+10=25 subtract to get 15. Mr. Jacobs does get excessive sometimes lol.
So it's 4x-5 equal to -20 to the second power
-20x-20 =400
The answer is 400
Well if your talking about everyday than the answer is 278,860
If your talking about each week than the answer is 278,860.764
Answer:
1. last choice
2. first choice
Step-by-step explanation:
<h3><u>First</u><u> </u><u>Image</u></h3>
The reason why it is the last choice because when times keep going as distance also keeps increasing as well. But the last choice says that run at the end of track then turn around and run back. That means there must be a decreasing distance and a maximum value as well.
Therefore the only with max point/vertex is the absolute value which matches the last choice.
<h3><u>Second</u><u> </u><u>Image</u></h3>
First choice because the car straight forwards without any change. The car runs with a steady speed but the distance will keep changing without any change of distance.
So the answer is first choice.
