Answer:
Step-by-step explanation:
The formula for area of a triangle is
Now we have to isolate for w.
First multiply by the 2 which is the reciprocal of 1/2 to cancel it out.
Now divide by h to isolate w.
n a survey, 480 people, or 75%, said they attended a movie at least once a month. How many people were surveyed
2 answers:
75% of an unknown number of people is 480 people.
We translate this sentence into an equation and we solve the equation.
Let x = number of people who were surveyed.
75% of x = 480
75% * x = 480
0.75x = 480
x is being multiplied by 0.75. We want x alone, so we divide 0.75x by 0.75 to get x alone. Since we must do the same to both sides of an equation, we divide both sides of the equation by 0.75.
Answer: 640 people were surveyed.
We translate this sentence into an equation and we solve the equation.
Let x = number of people who were surveyed.
75% of x = 480
75% * x = 480
0.75x = 480
x is being multiplied by 0.75. We want x alone, so we divide 0.75x by 0.75 to get x alone. Since we must do the same to both sides of an equation, we divide both sides of the equation by 0.75.
Answer: 640 people were surveyed.
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Answer:
149
Step-by-step explanation:
There is a common difference between consecutive terms in the sequence.
5 - 2 = 8 - 5 = 11 - 8 = 14 - 11 = 3
This indicates the sequence is arithmetic with n th term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 2 and d = 3 , thus
a₅₀ = 2 + (49 × 3) = 2 + 147 = 149