Answer:
The height of the trough is about 1.5 ft
Step-by-step explanation:
If each cubic foot of water contains about 7.5 gallons.
Then; 315 gallons is about 
Let h be the height of the trough, then

This implies that;

Divide both sides by 28 to get:


The height of the trough is about 1.5 ft
X =/= 4, -4
Explanation: if you replace the values of “x” with either “4” or “-4”, then one or more of the denominators will equal 0. Since you can not divide by zero, “X =/= 4, -4” is the correct solution.
All functions are relations...but not all relations are functions
Answer: you got it right
Step-by-step explanation:
Convert the problem to an equation using the percentage formula: P% * X = Y
P is 35%, X is 140, so the equation is 35% * 140 = Y
Convert 35% to a decimal by removing the percent sign and dividing by 100: 35/100 = 0.35
Substitute 0.35 for 35% in the equation: 35% * 140 = Y becomes 0.35 * 140 = Y
Do the math: 0.35 * 140 = 49
Y = amount of discount= 49
So 35% of 140 is 49
140-49= sale price= 91