Firstly. make your unknown number X.
95% can be represented as 95/100 or 0.95
so 95% of X is 76...
0.95 × X = 0.76
X = 0.76 ÷ 0.95
X = 0.8
_______________________________________________
for the second question.
(17 ÷ 20.4) and times it by 100 to get a percentage.
I believe this means that Joaquim earns 1.06 times his salary. Thus he earns (4000)(1.06) or $4240
Answer:
Firstly, rewrite the equation:
⅓ (18 + 27) = 81
Substitute x for the given number of it's supposed equivalent.
In this case x = 12.
⅓ (18(12) + 27) = 81
Solve using PEMDAS and simplify what is in the parenthesis first. Then, multiply.
(18 x 12) + 27 = 243
Now, solving using PEMDAS, multiply the total of what you got that was originally in the parenthesis by ⅓ .
⅓ (243) = 81
When you multiple these number they are equivalent to 81.
81 = 81
Since the equation given, when substituted x for 12, is equivalent to 81, this proves that substituting x for 12 makes this equation true.
A direct variation is a linear equation. It describes a simple relationship between two variables.
Example: if y varies directly as x, and y = 6 when x = 2, the constant of variation is k = = 3.
Hope this helped!! :)
Answer:
The equation would be:
In the attachment!!!
<em>Hope this helps!!!</em>
<em>
</em>
