Answer:
A school wanted to see how many students bought orange juice with their lunch. As a result, they sampled 100 lunch-buying students, to see how many of them bought orange juice. In a sample of 100 lunch-buying students, 25 of them bought orange juice with their lunches. If there are 1,000 students in the school that buy lunch, how many students bought orange juice with their food? 250.
Step-by-step explanation:
I'm assuming there's no visual included in the question, and that the example can be completely original.
If you wanted a ratio, you would ask what the ratio was between students that bought lunch and students that bought orange juice with their lunches (often asked in lowest terms).
- Sample included 100:25
- You want it in lowest terms. Find the lowest common denominator
- LCD = 5
- New ratio, divided by five to find lowest terms
- = 20:5
- Every 20 students, 5 of them (also 25% of them) bought orange juice with their lunches.
Answer:
B (the second choice)
Step-by-step explanation:
to calculate the area of a circle you use the formula A= π r²
the radius of the circle is 5 in, so the only answer that could work is
π(5in)²(30/360).
Hope this helps <3
~sunflowerpug
UwU
Answer:
x=4
y=-1
Step-by-step explanation:
x + 2y = 2
-x + y = -5
3y = -3
y = -1
If you would then plug in -1 (for y) then you would get x=4
For example:
x + 2(-1) = 2
x - 2 = 2
x = 4
OR
-x - 1 = -5
-1 + 5 = x
4 = x
x = 4
Answer:
20π square units
Step-by-step explanation:
The sector area is found using the proportion ...
sector area / circle area = sector angle / whole circle angle
Multiplying by "circle area", we get ...
sector area = (circle area)( sector angle / whole circle angle)
= (100π)(2/5π)/(2π)
= (100π)(1/5)
sector area = 20π
Answer:
5n - 2
Step-by-step explanation:
8 subract 3 is 5
5 minus 3 is 2
5n - 2