The answer is A <span>
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Answer:
Step-by-step explanation:
15+3x≥75
3x≥75-15
3x≥60
x≥20
Let x+500 represent the first year
For the $500 more than the previous year for 4 years, we would write:
(x+500)+(x+500+500+500)+(x+500+500+500+500)= 17,800
By adding the equation above, 4x+5000=17,800
4x=17,800-5000
4x=12,800
x=3,200
So the amount the man was paid in the first year is 3,200+500=3,700
Answer:
The number of pools clean per hour is 1.5
Step-by-step explanation:
Given as :
The number of pools clean in 8 hours = 12
The number of pools clean in 7.5 hours = 9
Let The number of pools they clean per hours = x
I.e x = 
+ 
Or, x = 
Or, x = 
∴ x = 
I.e x = 1.5
Hence The number of pools clean per hour is 1.5 Answer
<h2>
Answer:</h2>
<u>The equivalent expression is </u><u> (2 / x ^ 3) * sqrt (2)</u>
<h2>
Step-by-step explanation:</h2>
We have sqrt 8 / x ^ 6
Rewriting the expression:
=sqrt (8 / x ^ 6)
=sqrt (2 * 4 / ((x ^ 2) * (x ^ 2) * (x ^ 2)))
=(2 / (x * x * x)) sqrt (2)
= (2 / x ^ 3) * sqrt (2)
We get finally
(2 / x ^ 3) * sqrt (2)
