What number is 10% of 5
1 answer:
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Answer:
a. See Attachment 1
b.
c.
d.
Step-by-step explanation:
Calculating PT
To calculate PT, we need to get distance OT and OP
Calculating OT;
We have to consider angle 50, distance OH and distance OT
The relationship between these parameters is;
Multiply both sides by 20
Calculating OP;
We have to consider angle 30, distance OH and distance OP
The relationship between these parameters is;
Multiply both sides by 20
(Approximated)
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Calculating the distance between H and the top of the tower
This is represented by HT
HT can be calculated using Pythagoras theorem
Substitute 20 for OH and
Take Square Root of both sides
<em>(Approximated)</em>
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Calculating the position of H
This is represented by OH
See Attachment 2
We have to consider angle 50, distance OH and distance OT
The relationship between these parameters is;
Multiply both sides by OT
Substitute
<em> (Approximated)</em>
Another way of saying this is "12 is 30% of what number." Knowing that "of" is code word for "multiply" and 30%= 0.30, we can set up this equation, where x = the unknown number:
To solve for x, all we have to do is divide both sides by 0.30, like so!
The answer is x = 40, or 30 percent of 40 is 12.
Hope this helps!
To solve for x, all we have to do is divide both sides by 0.30, like so!
The answer is x = 40, or 30 percent of 40 is 12.
Hope this helps!