Read it carefully. It's telling you the answer in the problem! There is one teacher for every 11 students. Of course there are more students!
Answer:
Your answer should be C. 1/2(162 - 38)
Step-by-step explanation:
Step-by-step explanation:
a + b = 90
a + c = 180
a) If a = x, the. we can write
x + b = 90 and x + c = 180
or
b = 90 - x
c = 180 - x
b) c - b = (180 - x) - (90 - x)
= 180 - x - 90 + x
= 90
I believe she is ten because if last year Ellen was twice Maja's age that would be 11 minus one because it was last year. So 10 years older now so whats ten doubled because she was twice her age so 10+10=20. So now we know Maja is 10 and Ellen is 21.
Multiply the parentheses then collect like terms
(x+4y+z) (x-7y)
x^2-7xy+4xy-28y^2+xz-7yz
x^2-3xy-28y^2+xz-7yz
