Answer:
He can randomly survey 50 sixth-graders in the school. Because if he asked 30 people in the band some people might be in a different grade, if he randomly 50 boys in the school then what if half didn't even play anything. If he did friend what if most friends don't even play a instrument.
Then which one would it be it would be more easier if he did 50 random sixth-graders because they might know friends or themselves and a person who plays an instrument.
Hope this helps
Answer:
the first one is corresponding angles postulate
the second one is linear pair
Step-by-step explanation:
corresponding angles are equal
the sum of linear pair is 180°
pls mark as brainliest
A ferris wheel
A construction worker whose making a ferris wheel would need to know and measure the circumference.
A theme park manger would need to find the circumference to know if the ferris wheel is too big to go into the park.
Hope that helps!!
Answer:
25% increase
Step-by-step explanation:
Take the new number and subtract the original amount
90-72 = 18
Divide this amount by the original amount
18/72 = .25
Multiply by 100
25%
This is the percent increase
9514 1404 393
Answer:
63
Step-by-step explanation:
The number of seats in a row will give an arithmetic sequence:
6, 9, 12, 15, ...
The first term is 6; the common difference is 3. The general term is ...
an = a1 +d(n -1) . . . . . . n-th term of sequence with first term a1, difference d
The 20th term of the sequence is ...
a20 = 6 +3(20 -1) = 6 +57 = 63
There would be 63 seats on the 20th row.
