Answer:
<h3>285.15</h3>
Step-by-step explanation:
Given the expression;
19/258 = 21/x
We are to find the unknown value x;
Cross multiply;
19 * x = 258 * 21
19x = 5418
Divide both sides by 19;
19x/19 = 5418/19
x = 285.15
Hence the unknown value is 285.15
x^2 = 81/100
Let's take the square root of each side
x = 0.9 and -0.9
Answer:
16x11/y (i hope)
Step-by-step explanation:
