53x2=106
250-106= 144
144/2=72
The length is 72cm
Answer:5
dhhddhhhhddkskkStep-by-step explanation:
In order to determine the number of boys in the class, first, we set-up an algebraic equation. Let x = number of boys in the class. The equation is then: x + 4x = 45. This is because the number of girls is 4 times greater than the number of boys. After solving the algebraic equation, it is then determined that there are 9 boys in the Chemistry class.
Y = kx
80 = 16k
k = 80/16 = 5
direct variation
The first 2 choices are corect
Answer:
B) 120
Step-by-step explanation:
180 - 60 = 120
Hope that helps!
