Answer:
Cube - 600 Rectangular Prism - 350
Step-by-step explanation:
Cube - A=6a^2
Rectangular Prism - A=2(wl+hl+hw)
The equation is y = 63/x
And y = 3 when x=21
Step-by-step explanation:
When y varies inversely with x, The inverse proportion is given by:
y ∝1/x
When the proportionality symbol is removed, a constant of proportionality is introduced

Putting y = 7 and x = 9

So,

Putting x =21

Hence,
The equation is y = 63/x
And y = 3 when x=21
Keywords: Proportion, variables
Learn more about proportion at:
#LearnwithBrainly
Answer:
x=6
Step-by-step explanation:
Put the problem into y=mx+b format we knoe the inital value b is 6 now m is 3 and y the overall price is 24. Use the distributive property.
24=6+3x y=6+3x y=24
-6 -6
<u>18</u>=<u>3x</u>
3 3
6=x
x=6
Answer:
7x + 21
Step-by-step explanation:
7(x+3)
7x + 7(3)
7x + 21
Circumference is pi x diameter
So the diameter is 14
Area of a circle is pi x r^2
radius is half the diameter
so radius = 7
So pi x 7^2
= 49pi