math word problem

Question

the product of two numbers is 40. one number is three more than the other. use the guess and check method

Answer 1

the product of two numbers is 40. one number is three more than the other. use the guess and check method

p1 = product one

p2 = product 2

p1 x p2 = 40

p2 = p1 + 3

p1 x ( p1 + 3) = 40

p1² + 3p1 = 40

P1² + 3p1 - 40 = 0

p1 = [ -3 ± √3² -4(1)(-40)] / 2(1)

p1 = [ -3 ±√9 + 160] /2

p1 = [- 3 ± 13]/2

p1= 10/2

p1 = 5◄ Ans

p1 = -16/2

p1 = -8 Ans

 

Answer 2

 

the product of two numbers is 40. one number is three more than the other. use the guess and check method

p1 = product one

p2 = product 2

p1 x p2 = 40

p2 = p1 + 3

p1 x ( p1 + 3) = 40

p1² + 3p1 = 40

P1² + 3p1 - 40 = 0

p1 = [ -3 ± √3² -4(1)(-40)] / 2(1)

p1 = [ -3 ±√9 + 160] /2

p1 = [- 3 ± 13]/2

p1= 10/2

p1 = 5◄ Ans

p1 == -16/2

p1= - 8 Ans

p2 when p1 = 5

p2 = 5 + 3

p2 = 8 ◄ Ans

p2 = p1 + 3

p2 = -8 + 3

p2 = - 5 ◄ ans

 

 

 

 

 

Answer 3

Gourmet sandwiches. Jenny, Demi, and Drew buy an 18-in. long gourmet sandwich and take it back to their apartment. Since they have different appetites, Jenny cuts the sandwich so that Demi gets half of what Jenny gets and Drew gets three-fourths of what Jenny gets. Find the length of each person’s sandwich.

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Answer 4

Eastwing dormitory just purchased a new Sony coor television on sale for $340. The sale price was 80% of the original price. What was the original price of the television set?

It wants me to write an algebraic equation and solve it.