Answer:
a) 1st and 2nd
b) 4th one
Step-by-step explanation:
<span>-31=-6z-4z
Subtract 4z from -6z
-31=-10z
Divide both sides by -10
Final Answer: 3.1 or 3 1/10</span>
Answer:
x=5
y=12
Step-by-step explanation:
the equation is
12x-5+125=180
12x+120=180
12x=60
x=5
According to the question
8y+29=125
8y=96
y=12
Answer:

Step-by-step explanation:
The question seem incomplete;
The full question is
<em>Which expression is equivalent to 4√6/3√2
</em>
<em></em>
Given
4√6/3√2
Required
Find equivalent

Rewrite Expression

Expand the above expression

Further split the fraction

Using rule of surds;

So, the above expression becomes



At this stage, the expression cannot be further simplified;
Hence, 4√6/3√2 = 
Answer:
12
Step-by-step explanation:
AC = AB + BC
Since we know what each variable equals, we can write out the equation as shown:
52 = 8X + 8 + 2X + 4
Combining like terms:
52 = 10X + 12
Subtract 12 from both sides:
40 = 10X
Divide by 10:
X = 4
Now that we know X, we can figure out BC
BC = 2(4) + 4
BC = 8 + 4
BC = 12
Therefore BC is 12.