Answer:
Step-by-step explanation:
in complex number land there are two distict parts real.. the first number and imaginary.. the second number with the i
if your problem really only has a 7 and an i in it.. then it looks like below
7 * i = 7i
but..I suspect you just left out a bit of the problem.. repost .. i'll answer it again if the problem is different that what you posted already :)
Answer:
Equations:
--- Hot dog
--- Pretzel
Step-by-step explanation:
Represent hot dogs with H and Pretzels with P.
For Tina:
For Doug:
Solving for the price of both items:
We have:
--- (1)
--- (2)
Multiply (2) by 2
2 * ()
-------------------
--- (3)
Subtract (3) from (1)
----------------------
Solve for P
Substitute 1.25 for P in (2)
Collect Like Terms
Solve for H
The base will be 16in² and the height will be 8in²
Answer:
<h3>Encik Arif's mass is 63kg</h3>
Step-by-step explanation:
Let Encik Arif's mass be x
the ratio of Encik Arif's mass to his son's mass is 3:2
That's
<h3>
</h3>
The son's mass is 42, so the ratio of Encik Arif's mass to his son's is
x : 42
That's
<h3>
</h3>
Now equate the two fractions
That's
<h3>
</h3>
Cross multiply
3(42) = 2x
126 = 2x
Divide both sides by 2
We have the final answer as
<h3>x = 63</h3>
Hope this helps you