15<span>√2 is what I got for the answer.</span>
Answer:
x=36
Step-by-step explanation:
17+3 =20
now we have :
x+4
___ = 20
2
20*2= 40
x+4=40
x=36
hopes this helps
Answer:
7.3%
Step-by-step explanation:
Given:
<em>Formula for Rate of interest </em>
:

Where
is the rate of interest.
dollars is the loan and
years is the time for which interest is to be paid

To find:

Solution:
Putting the given values in the formula:

Multiply the above value with 100 to find the percentage.
i.e.

Therefore, the answer is <em>7.3%</em>
Answer:
Randy is 48 years old
Sandy is 12 years old
Todd is 27 years old
<em></em>
Step-by-step explanation:
Given
Represent their ages with the first letters of their names:



Required
Determine their individual ages
We'll solve the above equations using substitution method of simultaneous equations
Substitute 15 + S for T and 4 * S for R in 
This gives:


Collect Like Terms


Divide through by 6


<em>This implies that Sandy is 12 years old</em>
Substitute 12 for S in
and 




<em>This implies that Randy is 48 years old and Todd is 27</em>