Answer:
4 1/8 inches
Step-by-step explanation:
You apparently want to find the sum (in inches) ...
5.5 + (1 3/4) - (3 1/8)
This can be done a number of ways. One is to use an appropriate calculator.
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Another way to do this is to add the integer parts and fraction parts separately:
= (5 +1 -3) +(1/2 +3/4 -1/8)
= 3 + (4/8 +6/8 -1/8) = 3 + (4+6-1)/8 = 3 9/8
= 4 1/8
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Another way is to convert all the numbers to decimal, then add.
= 5.500 +1.750 -3.125
= 7.250 -3.125
= 4.125 = 4 1/8
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There were 4 1/8 inches of snow remaining Tuesday evening.
Answer:
Step-by-step explanation:
4 people use all three facilities, then
At least two facilities use 4 + 12 + 5 + 15 = 36 people, 4 of them use all three facilities. Thus, the probability that a randomly selected person which uses at least two facilities, uses all the facilities is
Answer:
see explanation
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
(1)
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (2, 22) and (x₂, y₂ ) = (4, 32) ← 2 ordered pairs from the table
m = =
= 5, thus
y = 5x + c ← is the partial equation
To find c substitute any ordered pair from the table into the partial equation
Using (6, 42), then
42 = 30 + c ⇒ c = 42 - 30 = 12
Thus Table 1 has slope = 5 and y- intercept = 12
(2)
Using (x₁, y₁ ) = 2, 15) and (x₂, y₂ ) = (1,8) ← 2 ordered pairs from the table
m = =
= 7, thus
y = 7x + c ← is the partial equation
To find c substitute (3, 22) into the partial equation
22 = 21 + c ⇒ c = 22- 21 = 1
Thus Table 2 has slope = 7 and y- intercept = 1