Answer:
The equation is C, and the correct answer is 6 (D)
Step-by-step explanation:
We first look for the correct equation. If Matt charges 9 dollars per hour, and earned a total of 99, then we known that 9*the number of hours = 99. Moving on, we know that he babysat Friday night for 5 hours, but we don't know the number on Saturday. BUT we do know that 5+saturday hours = total number of hours. Putting this into a formula, we get 9(5+x (where x = #of hours worked on saturday) = 99(total number)
Our final equation is 9(5+x)=99.
Solving this by dividing both sides by 9, we get 5+x=11. Subtracting 5 from both sides gives us x = 6.
Answer:
Your answer would be 2
Step-by-step explanation:
15 - 6(x+1) =12
15- 6*x +6*1 = 12
15 - 6x + 6 = 12
15 - 6 + 6x = 12
9 + 6x = 12
9 - 9 + 6x = 12 - 9
6x = 3
x = 2
Answer:
Florida has 67 counties, Georgia has 159.
<em>Hope this helps :)</em>
Answer:
435,307
Step-by-step explanation:
Given that :
p = 0.18
Zcritical = 99%
Error (E) = 1.5% = 1.5/100 = 0.0015
Sample size (n) can be obtained using the relation :
n = (Zcrit / E)^2 * (p * q)
q = 1 - p ; q = 1 - 0.18 = 0.82
Zcrit at 99% equals 2.576
n = (2.576 / 0.0015)^2 * (0.18 * 0.82)
n = (1717.3333)^2 * (0.1476)
n = 2949233.66328889 * 0.1476
n = 435306.888701440164
n = 435,307 samples
Light travels at 186,000 miles per second. Light takes about 11⁄3 seconds to travel from the earth to the moon. Calculate the distance between the earth and the moon based on the speed of light.
First of all we must multiply the speed of light by the time it takes to travel to the from here to the moon. The quantity is 682,000 miles.
Hope I helped!
