Answer:
27
Step-by-step explanation:
54/2
27x2=54 and they said 2 times
A=adult
c=children
total lumber=30
total number=adults+children
a+c=30
total cost=50
total cost=acost+ccost
acost=a times cost per adult=a times 3=3a
ccost=c times cost per child=c tiems 1=1c=c
total cost=3a+c
50=3a+c
equiaotn are
a+c=30
3a+c=50
multiplyu first by -1 and add
3a-a+c-c=50-30
2a=20
a=10
sub
10+c=30
c=20
answer is A
Since each of the sides of a square must all be the same length, the width and length of the square are both 5. The formula for the area of a square is
area = width * length
So that’s
area = 5 * 5
area = 25
Answer:
3
Step-by-step explanation: First, you find the mean of the data set. Then you take that mean and find the difference of that and each value, you add those up and find the mean of that number.
