Translation?
Let x be the number.
x+4-(-8)
Solve?
x+12
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
The total price for the meal is $79.69
20% of $63 is $12.6
And 6.5% of $63 is $4.09
$4.09+$12.6+$63=$79.69
Answer:
Step-by-step explanation:
First, open the parentheses!
6x^2 + 2x + 9x + 3 = 11x + 30
6x^2 + 11x + 3 = 11x + 30
Now solve this equation:
6x^2 + 3 = 30
x^2 = 2
x = √2
Sorry...I'm not sure if this is correct but hope it helps!
Answer:
$0.25/g
Step-by-step explanation:
20g --- $5.00
1g --- × $5.00 = $0.25