Atest is worth 100 points. the test is made up of 40 items. each item is worth either 2 points or 3 points. which matrix equation and solution represent the situation?

c on edg.

Step-by-step explanation:

Total number of points in the test = 100

Total number of items in the test = 40

Let number of items of 2 points be x and number of items of 3 points be y.

Now, using the given information the situation can be represented by using the following equations :

⇒ x + y = 40 .........(1)

⇒ 2x + 3y = 100 .........(2)

The matrix equation is :

By solving the equation (1) and equation (2), we get :

Solution : x = 20 and y = 20

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

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idk

step-by-step explanation: