The answer should be 2d-20.
Need an explanation?
Answer:
$720
Step-by-step explanation:
48 x 15 = 720
9514 1404 393
Answer:
(a) y = 5
Step-by-step explanation:
The equation of a horizontal line can be written as ...
y = constant
In order to make that line pass through a given point, the constant must match the y-coordinate of the point. Here, that is 5.
y = 5
9514 1404 393
Answer:
12 liters
Step-by-step explanation:
The kerosene usage is assumed to be jointly proportional to the number of stoves and the number of hours. That is ...
v = k·s·h . . . . . for s stoves running h hours
Then the value of k is ...
k = v/(sh) = (16 L)/(12·14) = 2/21 . . . . liters per stove-hour
Then the volume of kerosene required for 7 stoves and 18 hours is ...
v = (2/21)·s·h
v = (2/21)(7)(18) = 12 . . . liters
ANSWER
EXPLANATION
We want to simplify
The fractions have the same denominator so we write one denominator and add the numerators to obtain,
Regroup in the denominator to get,
This simplifies to;
