on comparing ratio of co - efficients , find out whether the pair of equations x - 2y=0 , and 3x + 4y -20 = 0 is consistent or in consistent?

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Yosef can eat 21 jamuns while rose can eat just 15 . complete the blank. yosef can eat % more jamuns than rose.

At 6 1/2 cents per pound of string beans how much does 7 pounds cost