A 500-g package of pastrami costs $6.25.
a) Determine the unit price per 100 g.
b) What would 750 g of pastrami cost?
c) How much would 2 kg cost?

a) 1.25

b) 9.38  (exact calculation 9.375)

c) 0.03  (exact calculation 0.025)  

Step-by-step explanation:

a) divide 6.25 by 5

b) multiply 1.25 ( the cost for 100 ) by 7.5

c) Divide 6.25 ( cost for 500 ) by 250

the two may have that, even a breakdown is probably offered

d, x=8

step-by-step explanation:

simplifying

4x + -5 = 2x + 11

reorder the terms:

-5 + 4x = 2x + 11

reorder the terms:

-5 + 4x = 11 + 2x

solving

-5 + 4x = 11 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-5 + 4x + -2x = 11 + 2x + -2x

combine like terms: 4x + -2x = 2x

-5 + 2x = 11 + 2x + -2x

combine like terms: 2x + -2x = 0

-5 + 2x = 11 + 0

-5 + 2x = 11

add '5' to each side of the equation.

-5 + 5 + 2x = 11 + 5

combine like terms: -5 + 5 = 0

0 + 2x = 11 + 5

2x = 11 + 5

combine like terms: 11 + 5 = 16

2x = 16

divide each side by '2'.