Step-by-step explanation:
Multiply 56 by 7/8 to determine the amount of red marbles.
*56 can be put over 1.
<u>Multiply</u><u>;</u>

<u>Simplify by dividing by 8</u><u>;</u>

There are 49 red marbles.
Answer:
Look at the explanation
Step-by-step explanation:
after the second line (4x-2x) +20= 2
--------------
after the 3rd line
2x=2-20=-18
-------------------
after 4th line x=-18/2
-----------------------------------------------------------------------------
At the end
4(-9+5)=2(-9)+2
-36+20=-18+2
-16=-16 so it is right
Answer:
The value of
is 3.
Step-by-step explanation:
Let be
and
, the difference between the two vectors is:



If we know that
, the value of
is:

In which,


The value of
is 3.
Answer:
The value of x is 12 is not true.
Step-by-step explanation:
Since the line intersecting them are at a diagonal, it is not possible that the other of the lines both equal 115. Everything else in the choices is true.