Answer:
The best and most correct answer among the choices provided by your question is the third choice or letter C. The total number of hours is 17.
For h>7
C=210+20(h-7)
C=210+20h-140
C=20h+70, h>7
410=20h+70
20h=340
h=17 hours
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21499 +12*x=22.75*x
21499=22.75x-12x
21499=10.75x
x=21499/10.75≈1999.9≈2000 books
Answer:
100 numbers
Step-by-step explanation:
There are 100 numbers with 5 as the hundreds digit. (500-599)
There are 100 numbers with 6 as the hundreds digit. (600-699)
There are 50 even numbers with 5 as the hundreds digit.
(500, 502, 504, ... , 598)
There are 50 even numbers with 6 as the hundreds digit.
(600, 602, 604, ... , 698)
50+50=100 numbers
V=hpir²
solve for h just for fun
divide both sides by pir²
v/(pir²)=h
given
v=86.21
r=2.8
pi=3.141592
86.21/(3.141592*2.8²)=h
3.5=h
answer is 3.5ft
Answer:
x = 1/2
Step by step explanation:
Two numbers a and b are each greater than zero.
i.e a > 0 and b > 0
And;
![\sqrt{a} \: = \: \sqrt[3]{b}](https://tex.z-dn.net/?f=%20%5Csqrt%7Ba%7D%20%20%5C%3A%20%20%3D%20%20%5C%3A%20%20%5Csqrt%5B3%5D%7Bb%7D%20)
Since the square root of a is equal to cube root of b then,
a = b = 1


2x - 1 = 0
x = 1/2