Mr. jensen made 135 copies of an exam for his three classes. if he made 25 fewer copies for his first class than he did for his second and third classes combined, how many copies did he make for his first class? answer choices: a) 55 b) 85 c) 95 d) 110

Let x be the number for the first class, y for the second plus third.

x + y = 135

y - x = 25

Subtracting,

2x = 110

x = 55

A

hope this !

step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300