if 4 notebooks and 3 packages of pens cost $7.43 and 5 notebooks and 2 packages of pens cost $7.03 what is the cost of 1 notebook

3

Step-by-step explanation:

Step-by-step explanation:

let,

cost of 1 notebook be x

and , cost of 1 package of Pens be y

so, a/q

4 books = 4x

and 3 package of Pens = 3y

so, the equation is

4x + 3y = $7.43 (eqⁿ 1)

and,

5 notebooks = 5x

2 packages = 2y

so, the equation is

5x + 2y = $7.03 (eqⁿ 2)

now,

multiply (eqⁿ 1) by 5 and (eqⁿ 2) by 4

so, we got

20x + 15y = $37.15 (eqⁿ 3)

and

20x + 8y = $28.12 (eqⁿ 4)

now,

subtract (eqⁿ 4) from (eqⁿ 3)

we got,

7y = $4.03

→ y = 4.03/7 = $1.29

therefore,

→ 4x + 3(1.29) = $7.43

→ 4x + 3.87 = $7.43

→ 4x = 7.43 - 3.87 = 3.56

→ x = 3.56/4 = 0.89

→ x = $0.89

therefore, cost of one notebook is $0.89

hope this answer helps you dear...take care and may u have a great day ahead!

2.56 is the width of the garden

step-by-step explanation:

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

i hope this you, and have a wonderful day!