Group B
Group B has a higher number of students with lower ages than Group A. Group A also has more older students than Group B. Based on that information Group B would be expected to have a lower mean age.
Answer:
78 boys
Step-by-step explanation:
If the raio is 2:3 that means there are 5 equal parts
56/2 28
3 x 28 = 78
Einstein went on to present his findings mathematically: energy (E) equals mass (m) times the speed of light (c) squared (2), or E=mc2. The secret the equation revealed—that mass and energy are different forms of the same thing—had eluded scientists for centuries.
Total cost is $38.16
Multiply 36 by 0.06 (2.16)
Add 2.16 to 36 (38.16)
