<span>r(s+t)=u
rs + rt = u
rt = u -rs
t = u/r - s</span>
(the opposite of the multiplication of 6 is to divide each side by 6)
6y = 192
6y ÷ 6 = 192 ÷ 6
y = 192 ÷ 6
y = 32
The answer is D. 32
Answer:
x = 10
Explanation:
Note the following rules before we begin:
2 ln(a) = ln (a²)
ln (a) + ln (b) = ln (ab)
Now, for the given:
ln(20) + ln(5) = 2 ln(x)
ln(20*5) = ln(x²)
ln(100) = ln(x²)
This means that:
100 = x²
Therefore:
either x = 10 .........> acceped
or x = -10 .........> rejected as no negatives are allowed within ln functions
Hope this helps :)
In a rectangular figure, the opposite sides should be equal. If one of the sides measures 8 inches, the side opposite to this should also be 8 inches. We let x be the other dimension. The perimeter (P) is equal to,
P = 2 x 8 + 2x
Substituting the known values,
40 in = 16 + 2x
Solving for x gives an answer of 12 in. Thus, the other dimension is 12 inches.