Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form

is equal to

Part 1)
in this problem we have

so

substitute in the formula

therefore


Part 2)
in this problem we have

so

substitute in the formula





therefore


Alright, so the equation we have here is 22.75x+32=128.69
Now we just solve
-32 on both sides, we get
22.75x=96.69
divide by 22.75 on both sides we get
x=4.2501989
So 4 hours
You add the 4.25 hours
10, 11, 12, 1 is the hour
And .25 is a fourth, and a fourth of 60 minutes is 15 minutes
So he left at 1:15 pm
BD=7x-10
Answer: x=bd/7 + 10/7
BC=4x-29
Answer: x=Bc/4 + 29/4
CD=5x - 9
Answer: x= cd/5 + 9/5
Answer:
The answer is c
Step-by-step explanation:
Yeahhhhh
Answer:
17 nickels and 24 quaters
Step-by-step explanation:
0.85÷5=17
6.00÷0.25=24