What is 3 1/8 - 1/2
2 answers:
Answer:
Step-by-step explanation:
Given:
Let's changed that mixed number to an improper fraction. Now we get:
Let's find out least common denominator. This one is easy, the LCD is 8. Now that we know the LCD, let's convert both our fractions:
We can use because it is equal to
. Now, all we need to do is subtract the numerators:
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Answer:
They can expect to make $524
Step-by-step explanation:
Lets solve the problem
The form of the linear function is f(x) = m x + b, where m is the slope of the line and b is the y-intercept (value f(x) at x = 0)
∵ The student decided to use the points (0.5, 20) and (3, 150)
to make a better regression equation
- She calculated the slope of the line using the two points
∵
- She substituted the value of m in the form above
∴ f(x) = 52 x + b
- Than she find that the best value of f(x) at x = 0 is 4
∴ f(x) = 52 x + 4
∵ x represents the number of hours
∵ y represents the money
∵ The family decides to extend the yard sale to be 10 hours long
- That means substitute x by 10 in f(x)
∵ x = 10
∴ f(10) = 52(10) + 4
∴ f(10) = 520 + 4
∴ f(10) = 524
∴ They can expect to make $524
Answer:
Required,
Step-by-step explanation:
Given volume and depth respectively,
and
To find length and width of the rectanglular swiming pool we know,
Volume=lengthheight
depth.
Let depth=D=x-3, length=L, width=W, then
After divide we will get with remainder -144.
Thus,
Now to find root of,
Thus,