Answer:
20
Step-by-step explanation:
The given relation can be written as the 2-step linear equation ...
(1/3)n +2 1/3 = 9
n +7 = 27 . . . . . . . . . step 1: multipy by 3 (makes the coefficient = 1)
n = 20 . . . . . . . . . . . step 2: subtract 7 (separates variable from constant)
The number is 20.
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<em>Additional comment</em>
Usually it is convenient to do the two steps in the opposite order: get the variable term by itself, then make its coefficient 1. Here, we chose the order we did because it eliminated fractions from the problem, which is often a step you'd like to do first.
the answer is 240 seconds :)
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Answer:

Step-by-step explanation:
4/5*3/3-1/3
4/5*3/3-1/3*5/5
4*3/15-5/15
4*3-5/15
12-5/15
7/15
Answer:
y = 2x - 2
Step-by-step explanation:
y = mx + b
Sub x = 5, y = 8, and b = -2 into the equation.
8 = 5m - 2
Isolate the m-term and solve for m.
8 + 2 = 5m -2 + 2
10 = 5m
Divide both sides by 5 to isolate m.
m = 2
Sub the parameters (m and b) into the template to get your equation.
y = 2x - 2
Answer:
B
Step-by-step explanation:
a is base edge
h is height or To find the volume of a square-based pyramid, use the formula V = A(h/3), where V is the volume and A is the area of the base.