Answer:
$72
Step-by-step explanation:
And the reason is because it said it costs $18 for 4 hours so each every hour you add $18
so therefore it means that 18 x 4 + 72
Answer:
therefore there is only one solution
Step-by-step explanation:
try solving it step by step
6x - 4 = x + 6 add 4 to both sides
6x = x + 10 subtract x from both sides
5x = 10 divide both sides by 5
x = 2
2-3n=n+10
so two less than three is subtracting two minus three. than three times a number; we dont know that number so we put it as a variable. in this case n. so they are multiplying right now. "is" means equals. than the same number, which is n, plus 10. so add ten with n.
Step-by-step explanation:
A and D does not express this equation of finding the perimeter of a triangle
Answer:
a 0.20
Step-by-step explanation:
The standard error of the mean can be calculated using the formula
SE=
where
- s is the population standard deviation of the time spend on the computer (1.4 hours)
- N is the sample size of the data collected. (49)
Using the numbers SE=
=0.20