Math question for the smarty pants!?

Question

solve this:

x=3v
v=4t
x=pt

if x is not zero, what is p?

Its an SAT question!

Answer 1

1. x = 3v : given
2. v = 4t : given
so.. x = 3(4t) :substitution 4t for v in equation 1.
3. x = 12t : distributive law.
4. x = pt : given.
5. 12t = pt : substitution 12t for x from equation 3.
12 = p : divide both sides by t

Answer 2

If x = 3v, then 1/3x = (1)v.
If 1/4v = (1)t, then1/12x = (1)t, because 1/3*1/4=1/12.
So, p = 12, because 12*(1/12x) = 12*t, simplified is x = 12t.

Answer 3

Substitute the second equation in the first equation and you get:
x = 3(4t) = 12t
So p=12

Answer 4

Here is the answer:

x=3v = 3* (4t) = 12t = pt.

So p = 12.

Answer 5

Indeed. You would do this:

x = 3v so x = 3(4t) = 12t

So p = 12.

Answer 6

12 is the answer...this is a very simple algebra question. You may want to hit the books some more if you have trouble with this, otherwise you may want to consider enrolling to the local community colleges before you waste your parents' money.

Answer 7

since x=3v and x also equals pt then make x=x and sub the other forms for
3(4t)=pt
12t=pt
12=p

basic

Answer 8

since x=3v and also
x=pt

==> 3v = pt -------equation(1)

but v=4t -------put v value in eqation(1)

so 3v=pt
3(4t)=pt
12=p

p=12 is the answer

Answer 9

Solve,

p = x/t

p = (3v)/(v/4)

p = 12

Answer 10

p
=x/t
=3v/t
=12t/t
=12

a grade 5 math problem that teaches simple substitution