(50 points, Math) TechWiz Electronics makes a profit of $35
for each MP3 player sold and $18
for each DVD player sold. Last week, TechWiz sold a combined total of 121
MP3 and DVD players. Let x
be the number of MP3 players TechWiz sold last week. Write an expression for the combined total profit (in dollars) TechWiz made from MP3 and DVD players last week

The total profit TechWiz made from MP3 and DVD players last week is

Explanation:

Let x represent the number of MP3 players TechWiz sold last week.

Let y represent the number of DVD players TechWiz sold last week.

The profit made by TechWiz on each MP3 player = $35

The profit made by TechWiz on each DVD player = $18

Total number of MP3 and DVD players TechWiz sold last week is 121

Number of DVD players TechWiz sold last week

The total profit TechWiz made from MP3 and DVD players last week is given by

Substituting in , we get,

Simplifying, we get,

Thus, the total profit TechWiz made from MP3 and DVD players last week is

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

your answer is b.

x = 33.9

y = 65.6

step-by-step explanation: