Answer:
width = 10 cm
length = 37 cm
perimeter = 94 cm
area = 370 cm^2
Step-by-step explanation:
Perimeter = 2(length + width)
x is width, then length is 3x + 7
so 2(x + 3x + 7) = 94
4x + 7 = 47
4x = 40
x = 10
length = 3(10) + 7 = 37
Your answer would be 16.2 foot
Answer:
So I believe it would be 48
Step-by-step explanation:
Volume = length times width times height
So if we have a height of four ft we can put that into our equation
V = length x width x 4
If the face is 12 and it is a square then it the width and length have to be 4 and 3
V = 4 x 3 x 4 or V = 12 x 4
So V = 48
Hope this helps :)
Answer:
300
Step-by-step explanation:
Let x represent the number of adults in the zoo at 12 pm. Then the number of children at that time is 855 -x.
The number of remaining children is 1/5 of the number at 12 pm, so is ...
(855 -x)/5
The number of remaining adults is 1/4 of the number at 12 pm, so is ...
x/4
There are 36 more remaining children, so we have ...
(855 -x)/5 -x/4 = 36
171 -9x/20 = 36 . . . . . collect terms
135 = 9x/20 . . . . . . . . add (9/20)x-36
(20/9)(135) = x = 300 . . . . . multiply by 20/9
There were 300 adults in the zoo at 12 pm.
Answer:
x=3/2y−6
y=2/3x+4
Step-by-step explanation:
Let's solve for y.
12=−2x+3y
Step 1: Flip the equation.
−2x+3y=12
Step 2: Add 2x to both sides.
−2x+3y+2x=12+2x
3y=2x+12
Step 3: Divide both sides by 3.
3y/3=2x+12/3
