tsantiago tsantiago

26-03-2020
Mathematics

contestada

k + j = 54
j = k - 30
How many shells does Joshua have?
j=?

Respuesta :

alarsen0901 alarsen0901

26-03-2020

Answer:

12

Step-by-step explanation:

To solve, substitute the value for k into one of the equations.

We know that k + j= 54.

To get k alone, subtract j. k = -j + 54.

Plug the value of k into the second equation. j = -j + 54 - 30.

Simplify.

j = -j + 24

2j = 24

j = 12

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