Q5 Answer (b) A study was conducted to determine the relationship between weekly advertising costs and sales in pesos. (a) Find the regression line to predict the weekly sales from advertising costs. Estimate the weekly sales when advertising costs are Php2,300. Costs() 1,000 1,500 2,000 2,500 2,500 3,000 Sales () 20,000 23,750 24,500 26,250 25,500 28,000

Q: The sum of two times a number and twenty-two?

A: Given :   The sum of two times a number and twenty-two

Q: 2х-3 3D5 3.

A: To solve2x-3x-3=5

Q: Six more than the quotent of a number and 4 is 8.

A: let that number is x and quotient of the number and 4 be x4

Q: 1. The sum of two numbers is 25. One of the numbers exceeds the other by 9. Find the numbers.

A: Let x be a first number.  Then, the other number is = (x + 9) Given, the sum of two numbers is = 25…

Q: 1 5. of Colin's money is $43 more than - of Daniel's. If the two boys have $821 altogether, how much…

A:

Q: Jona likes storing food in her mini-refrigirator. She has 18 solid foods - 4 apples, 6 chocolates,…

A: Solution: From the given information, there are 18 solid foods and 5 drinks. Solid foods include 4…

Q: A number $k$k​ plus 19.5 is less than or equal to 40.

A: According to the given information it is required to find the number x, that satisfy the given…

Q: Solve. x2-7x+10=0

A: We will solve this by factorization.

Q: The product of 9 and the sum of a number and 1.

A: The objective of the question is to express the given statement as an algebraic expression.

Q: Sx(2x – 3)®dx

A: Given, ∫x2x-38dx We have to evaluate the integral.

Q: Five more than the product of a number and 8 is 4

A: Given  Five more than the product of a number and 8 is 4

Q: y 25 15

A: Use Pythagoras theorem.

Q: I went for a run on a windy day in Santa Ana. I ran 8 miles in one hour but on the way back I only…

A: Let the speed of the wind = W.                  Let your speed  = Y  Distance covered by you in 1…

Q: Ive. 9*1 =275x-1

A: If bases are equal then automatically powers must be equal in order to satisfy an equation

Q: Find a number for which of 13 less than the number is the same as 13 more than the number.

A: Find a number for which of 13 less than the number is the same as 13 more than the number.

Q: Fandi spends÷ of his allowance and saves the rest of his allowance each week. Gareth spends of his…

A: First we will form the equations based on the given statements and then solving the equations will…

Q: Distinguish the number of solutions.

A: Given that,

Q: A number s is subtracted from seven.When the result is divided by three,the quotient is two. What is…

A: Let a number is s. According to the first condition of the question it becomes 7-s. Now from second…

Q: Find the value of m in the equation 2 -3 7 4 1 2 3 - 5 2 - 2 1

A:

Q: Find two numbers whose sum is 9 and their difference is 60.   Smaller- Large number-

A: We have given the - sum of two numbers = 9. difference of two numbers = 60. we have to find the…