If 75% liked skating, then 25% did not
so 25% of what is 35
0.25x = 35
x = 35/0.25
x = 140...so there is a total of 140 students
75% of 140 =
0.75(140) = 105...so 105 students liked skating
Company B because if u multiply 20×3 then you would only have to pay $60 and if u buy it from company A you would have to multiply 11×3 and then multiply 33× 20 and then you would have to pay $660 so u would save more with company B
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Answer: A) around 80 cm</h3>
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Explanation:
The perimeter around the circle, aka circumference, is found through this formula
C = 2*pi*r
That's for a full circle. However, we're dealing with semicircles here, so we cut that in half to get pi*r to represent the curved distance around half the circle.
For the outer larger semicircle, that curved distance is exactly 14pi
For the inner smaller semicircle, that curved distance is 7pi, since 7 is half of 14.
The total curved portions is 14pi+7pi = 21pi
Then we add on the last straight line portion that's 14 cm long to get a total perimeter of 21pi+14
This is the exact perimeter in terms of pi.
The last thing to do is replace pi with 3.14 and simplify
21pi+14 = 21*3.14+14 = 79.94
This value rounds to 80
Sorry i am late to the party but the snawer for the first problem is SAS. We know that segment AD is congruent to segment CD becausse of those tick marks. We also know that the angles towards the bottom of the diagram are congruent because they have the angle symbols. Finally BD=BD because of the reflexive property. We have a side an equal angle and finally another side.
Number 2 is SSS. Segment PR is congruent to Segment NQ because of the tick marks (1 line of tick marks.) In addition, PN=RQ because they both have 2 tick marks. Lastly we know PQ=PQ because of the reflexive property. We have a side, a side, and another side.
That statement is incorrect. When writing a percentage as a decimal, the decimal point goes before the tens place, like so: .145
