You can use a simultaneous equation - x + 7y=24 minus x-9y= -24 you end up with 16y = 48
Divide 48 by 16 and you get 3 is equal to y. Now put three into an equation eg, x + 21 = 24 it is now obvious that x = 3 as well as y = 3
Answer:
k
Step-by-step explanation:
k
Answer: Translation:
The length of a room is 2 meters greater than its width. The area is 80 m ?. How long is it? How wide is it?
Step-by-step explanation:
Answer:
Option b.
Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form
i
s equal to
in this problem we have
so
substitute in the formula
remember that
so
simplify
therefore
In factored form the quadratic equation is equal to
Answer:
i think its A. . .
Step-by-step explanation: