Answer:
its either B or D
Step-by-step explanation:
7<-2× +3
2×=4
7< -4+3
-4+3=-7
7<-7
which is greater negative or positive?
sicne it is on the -7 then that is the answer but i dont know which is greater of negative or positive if you think its is positive then it might be C or A
Here's what you have to do: multiply. 54.9×12= 658.8. So, he traveled 658.8 miles in twelve hours.
The sample size needs to be 96.
First we find the z-score for this confidence interval:
Convert 95% to a decimal: 95/100 = 0.95
Subtract from 1: 1 - 0.95 = 0.05
Divide by 2: 0.05/2 = 0.025
Subtract from 1: 1 = 0.025 = 0.975
Using a z-table (http://www.z-table.com) we look up this value in the chart; the z-score that goes with this value is 1.96.
Now we use the formula
Answer:
Step-by-step explanation:
y = total number charged.
x = number of animals vaccinated.
If she charges $20 as a base, this means it is a constant value.
She also charges $10 for each animal vaccinated, this can be written as 10x.
Therefore the equation for the total number charged (y) can be written as:
Total amount charged = $20 + $10 for every animal vaccinated.
y = 20 + 10x
We know:
397 total
53 fewer student tickets than adult tickets
Variables: A for adult tickets, S for student tickets
Known Equations:
a + s = 397
a = s + 53
Solving:
2s + 53 = 397 so 2s = 344 so s = 172
s + a = 397
172 + (172 + 53) = 397 so 172 + 225 = 397
Adult tickets sold: 225
Student tickets sold: 172