Karen's final exam has true/false questions, worth 2 points each, and multiple choice questions, worth 5 points each. Let x be the number of true/false questions she gets correct, and let y be the number of multiple choice questions she gets correct.
She needs more than 82 points on the exam to get an A in the class. Using the values and variables given, write an inequality describing this.

2x+5y > 82

If true/false are worth 2 points and multiple-choice are worth 5 points, in order to get 82 points, 2x+5y must be greater than 82.

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

4 candies

step-by-step explanation:

7 x 28 = 196

200 - 196 = 4 candies remaining.