For this case we have to:
x: Represents the unknown number
y: Represents the exponent of base 10
So, considering a system of equations we have:
From the first equation we have:
Substituting in the second equation:
We choose the positive value:
So, the number is 0.4.
So:
Thus, the exponent is 5.
Answer:
Yara use 0.4 and
Divide 5 by 89 and you get a=17.8
Answer:
13.50
Step-by-step explanation:
150. x
___ ___ x = $13.50 per hour
100. 9
Answer:
2
Step-by-step explanation:
Answer:
2.5 hours
Step-by-step explanation:
Divide the travelled miles by the amount of hours to get the travelled miles for one hour. (17 miles in 1 hour) Then divide 42.5 by 17 to get the amount of time it takes to go 42.5 miles. (42.5 miles in 2.5 hours)
Hope this helps!
