Answer: $15.75
Step-by-step explanation:
$78.75/5 hr=$15.75/hr
Answer:
9.5%
Step-by-step explanation:
Use the formula I = Prt
I is the interest (unknown), P is the principal (1000), rate is the percent (unknown), and t is time in years (9/12).
9 months is a fraction of a year. There are 12 months in a year, so our fraction is 9/12. You can reduce this fraction by dividing by 3. The fraction reduced is 3/4. You can also use the decimal which is .75.
First we need to solve how much interest we earned. 1071.25 is the balance, so we need to subtract the principal from the balance.
1071.25 - 1000 = 71.25
Plug the numbers in to the formula. We are solving for r.
71.25 = 1000(.75)r
71.25 = 750r
71.25/750 = 750r/750
r = 0.095
Convert the decimal to a percent by moving the decimal two places right.
0.095 = 9.5%
Answer:
Perpendicular
Step-by-step explanation:
To tell if the lines are perpendicular/parallel, you must look at the slope, but in this case, you must first get y by itself, like so:
3x + 7y = 15
-3x - 3x
___________
7y = -3x + 15
<em><u>Divide both sides by 7:</u></em>
y = 
<em><u>Now the other equation:</u></em>
7x - 3y = 6
-7x -7x
_________
-3y = -7x + 6
<em><u>Divide both sides by -3:</u></em>
y = 
You can see that the lines are perpendicular because the slopes (
and 
) are opposite reciprocals.
Answer:
x=3/8
Step-by-step explanation:
2*x=3/4
x=3/4*2
x=3/8
