Answer: 60 students
Step-by-step explanation:
So, in the first situation 430 students were surveyed and 258 said that their favourite pet was a dog. The second situation is 100 students and x said that their favourite pet was a dog. We are solving x.
430=258
100= x
Cross multiply
So that is
430 x X= 100x258
430x=25800
Divide both sides by 430
Answer: 60 students
It would be x=6 there’s the answer
Answer:
x = 29
Angle A = 46.4°
Angle B = 43.6°
Step-by-step explanation:
Since it is a right angle triangle, we can find x from pythagoras theorem;
x = √(20² + 21²)
x = √(400 + 441)
x = √841
x = 29
Using trigonometric ratios we can find angles A and B.
Opposite is 20
Adjacent is 21
Thus; opp/adj = tan B
20/21 = tan B
B = tan^(-1) 0.9524
B = 43.6°
Sum of angles in a triangle is 180°. Thus;
A = 180 - (90 + 43.6)
A = 46.4°
3120 times 4 which is 12,480 which is close to 1200 so c is ur answer
Answer:
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