Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks. Eduardo is starting a business selling handmade necklaces. He has decided to invest an initial amount of $69 for advertising, and materials cost $7 for each necklace he makes. Eduardo can sell his creations for $10 per necklace. Once he makes and sells a certain number of necklaces, he will break even, with identical expenses and sales. What would the total expenses and sales be then? How many necklaces would that take?

Eduardo would have total expenses and sales $
after selling
necklaces.

a

step-by-step explanation:

“a term can be a signed number, a variable, or a constant multiplied by a + sign or j sign. in , the terms are 5x , 3y and 8. when a term is made up of a constant multiplied by a variable or variables, that constant is called a coefficient.” i hope this you.

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.