Answer:
25 students
Step-by-step explanation:
.8x = 20
x = 25 students
If you just type that exact equation into a calculator it gives you the same answer as well
Answer:40% weight increase
Step-by-step explanation:
X+y=62 ; x-y=12 Solve for x in one equation and plug that value into the other equation. ===> x=12+y ; 12+y+y=62 Subtract 12 to both sides (2y=50), then divide by 2 to find y (y=25). Now, plug 25 as y into x=12+y, getting x=37. Your two numbers are 37 and 25.
It is closer to 1/2 because 5/8 is close to 4/8 which is 1/2.
