1<span>4√3 + 7√3
same sqrt roots we can add them
21</span>√3
Answer:
The value of 7u + 2 is 9.
Step-by-step explanation:
To solve this problem, we first must find the value of u given the second equation. The first step in simplifying this equation is to subtract 8 from both sides of the equation. This is modeled below:
-2u + 8 = 6
-2u + 8 - 8 = 6 -8
-2u = -2
Next, we can divide both sides by -2 to get the variable u alone on the left side of the equation.
-2u/-2 = -2/-2
u = 1
Therefore, the correct answer is u = 1. Now, we can plug in this value for u into the expression that is given.
7u + 2
= 7(1) + 2
= 9
Thus, the correct answer is 9.
Hope this helps!
Answer:
Interest: $390 | Total: $715
Step-by-step explanation:
To answer the first question, we can use the simple interest formula provided:
<em>P = initial balance</em>
<em>r = annual interest rate</em>
<em>t = time</em>
<em />
First, change 8% into the decimal form:
8% -> -> 0.08
Now, plug in the values:
Charlie made $390 of interest. To find the total, just add that number to $325.
Charlie's total money made was $715.
Answer:
x=2
Step-by-step explanation:
13x - 2(8+5x) = 12 - 11x
The first step is to distribute the -2
13x -2*8 -2*5x = 12-11x
13x -16-10x = 12-11x
Combine like terms
3x-16 = 12-11x
Add 11x to each side
3x+11x -16 = 12-11x+11x
14x-16 = 12
Add 16 to each side
14x-16+16 = 12+16
14x=28
Divide by 14
14x/14 =28/14
x =2