Answer:
<u>Step-by-step explanation:</u>
y = x + 2 x + y = 3
Solve using Substitution Method by replacing y with x + 2:
x + (x + 2) = 3
2x + 2 = 3
2x = 1
x =
Next, replace x with 1/2 in one of the original equations and solve for y:
y = x + 2
= + 2
=
You use the equation given to solve the problem.
x= 4x9
X=36
The four is for the amount of people. The nine is the cost.
For the questions where you have to find out how much each person paid you would have to divided the amount by the number of people.
So, 36/9= 4.30
Therefore each person paid $4.30.
(Hope this helps you)
Answer:
71s
Step-by-step explanation:
The question we have at hand is 7s² + ___ + 13s + 6² = (7s + 6)². We can expand the perfect equation " (7s + 6)² " in order to find our solution. A perfect square consists of 3 terms, and hence the term in the blanks must add to 13s to form another term.
Applying the perfect square formula : ( a + b )² = a² + 2ab + b², let's expand the expression,
(7s + 6)² = ( 7s )² + 2( 7s )( 6 ) + ( 6 )² = 7s² + 84s + 6²
84s - 13s = 71s, which fills in the blank provided.