The operation 3 / 10 ÷ 4/ 5, can also be written as (3 / 10) x (4 / 5). The operation can be done by multiplying the numerators and denominators which is equal to 12 / 50. This may be further simplified as 6/25.
You can use the fact that equivalent equations are such that one equation can be obtained by performing some operations(which doesn't break equality) on the other equation and vice versa.
The equivalent equation to
is 
<h3>What are equivalent equations?</h3>
Equivalent equations are such that one equation can be obtained by performing some operations(which doesn't break equality) on the other equation and vice versa.
<h3>How to get the equivalent equation of the given equation?</h3>
The given equation is

Subtracting 4 from both sides, we get

Thus, one equivalent equation to the given equation is 
The equivalent equation to
is 
Learn more cases of equivalent equations here:
brainly.com/question/14332869
Answer:
540 inches
Step-by-step explanation:
1 yard equals 36 inches. Thus, a 15-yard hose has the measurement in inches of (36)(15) = 540
Simple interest, I = 101.40
Time, t = 6 years
interest, i = 1.3%
Interest, I=Pit, rearrange
Principal, P=I/(it)=101.40/(6*0.013)=1300