There are several information's already given in the question. Based on those information's, the answer can be easily deduced.
The equation given in the question is
x = 0.8x + 72
x - 0.8x = 72
0.2x = 72
x = 360
Now
Number of people that became
member of the site = (80/100) * 360
= 288 people
From the above deduction, it can concluded that the correct option among all the options that are given in the question is 288.
Answer:
Pedro hits 1471 times and Ricky hits 1195 times.
Step-by-step explanation:
Pedro has 276 more hits than Ricky.
So, p = r + 276 ....... (1)
And their total hits is equal to 2666.
p + r = 2666 ........ (2)
Now, substituting the value of p from equation (1) to equation (2) we get,
r + 276 + r = 2666
⇒ 2r = 2390
⇒ r = 1195
Hence, from equation (1) we get p = r + 276 = 1471.
Therefore, Pedro hits 1471 times and Ricky hits 1195 times. (Answer)
Answer:
C=50.27mm
Step-by-step explanation:
C=2πr=2·π·8≈50.26548mm
Let present age of women be x.
Then,Present age of her daughter be y.
According to the question,
<u>Two years ago,</u>
Woman age = x - 2
Her daughter age = y - 2
Woman was 7 times old as her daughter. [ Given ]
x - 2 = 7 ( y - 2 )
=> x - 2 = 7y - 14
=> x - 2 + 14 = 7y
=> x + 12 = 7y ....( i )
<u>A</u><u>f</u><u>t</u><u>e</u><u>r</u><u> </u><u>Three years </u>,
Woman age = x + 3
Her daughter age = y + 3
she would be 4 times old as the girl. [ Given ]
x + 3 = 4 ( y + 3 )
=> x + 3 = 4y + 12
=> x = 4y + 12 - 3
=> x = 4y + 9....( ii (
Now,
★ Putting the value of x = 4y + 9 from equation ( ii ) in equation ( i ),we get
x + 12 = 7y
=> 4y + 9 + 12 = 7y
=> 21 = 7y - 4y
=> 21 = 3y
=> 3y = 21
=> y = 21/3
=> y = 7
And,
x = 4y + 9
★ Putting the value of y in equation ( ii ), we get
x = 4 × 7 + 9
x = 28 + 9
x = 37
Hence, the present age of women is 37 years and her daughter age is 7.
<span>Using SOHCAHTOA we have:
</span><span>sin15 = <span>height / 3000
</span></span>height = 3000 sin 15 height = 776.46m
So, the height of the plane above the ground at this instant is <span>776.46m</span>