3x + x = 136
4x = 136
x = 34
3*34=102
102 students brought their lunch.
Volume of a sphere is 4/3 pi r^3. radius is half of the diameter (4.5). answer is 381.7 but rounded to the nearest whole number it's 382 so the answer is A i think.
Answer:
I'm sorry I don't know how to put in words of how to solve but the answer would be
ZY = 3 ft
XY= 7.42 ft
Answer:
31
Step-by-step explanation:
Red: 7
Yellow: 2*Red =14
Blue = Yellow - 4 = 10
Total = 31
Answer:
The world record for the 200-m dash will be set at 18.0 seconds in the year 2920.
Step-by-step explanation:
To find what year the record will be 18 seconds, substitute 18 in for R, and solve for t.
-0.0028t + 20.8 = R
-0.0028t + 20.8 = 18
-0.0028t = -2.8
t = 1000
The record for the 200-m dash will be 18 seconds after 1000 years. To find which year this record will be set in, add 1000 to the original date, 1920.
1920 + 1000 = 2920
