Answer:
Step-by-step explanation:
Let
x ----> the number of minutes
y ----> the total charge in dollars
we know that
For x>700 min
so
For y=48.10
substitute
Multiply by 100 both sides
----> equation without decimals
solve for x
To find out the total minutes we need to sum
Answer:
6.148
Step-by-step explanation:
Answer:
Solution: x ⩾ \frac{8}{5}
Step-by-step explanation:
x 3 + x 2 ≤ 10x – 8
Reorder the terms
3x + 2x ≤ 10x - 8
Collect like terms
5x ≤ 10x - 8
Move the variable to the left
5x -10x ≤ -8
Collect like terms
-5x ≤ - 8
Divide both sides
x ⩾ \frac{8}{5}
Answer:
the answer to "2 times what equals 25?" is 12.5.