Answer:
angle 8 = 78 degrees
Step-by-step explanation:
angle 2 = 78 degrees
angle 4 is opposite to angle 2 so it is also 78 degrees
since lines a and b are parallel and angle 4 and angle 8 are both on the bottom right of the four angles of each line, angle 8 is the same as angle 4
so
angle 8 = 78 degrees
No, because it has nothing to do with breaking the numbers down
Lets check...
42/56 = 56/64
cross multiply
(56)(56) = (42)(64)
3136 = 2688...(incorrect)...these are not proportional
proportions are nothing but equivalent fractions
42/56 = 3/4
56/64 = 7/8
as u can see, they are not equivalent fractions...so they are not proportional
Answer:
-20x -27 is the required expression.
Step-by-step explanation:
whenever we are to solve the system of equations by substitution method we have to write one variable in the form of other so as to get the value of unknowns
here, we are given two expressions:
And
We have to substitute x in terms of y because the equation should be equivalent to y we will put in
we will get:
is the expression we will get after expression equivalent to y.