I am certain the answer is A and D. Plze mark me brainiest:)
X= # of adults
y= # of children
1326= 6x + 4y
289= x + y
We are going to do substitution.
x = 289-y
1326= 6(289-y) + 4y
1326= 1734 -6y + 4y
1326= 1734 + -2y
-408= -2y
204 = y
Since we now have a value for y, we should plug that back into the equation we got the x value from to find the actual numerical value of x.
289= x + y
289= x + 204
85= x
In conclusion, 85 adults and 204 adults went to the swimming pool.
Let the width be x
Width = x
Lenght = 42 + x
Perimeter of a rectangle = (2 x width) + (2 x lenght)
524 = (2x) + [2(42 + x)]
524 = 2x + 84 + 2x
440 = 4x
110 = x
Width = 110
Length = 42 + 110 = 152
Nope you posted this five days ago no need for another answer.
9 books cost 32
Step-by-step explanation:
5 books =20
1 book= 5÷20 = 4
9 books = 4×9 = 32