Points D and E are midpoints of the sides of triangle ABC. The perimeter of the triangle is 48 units. What is the value of t?

A. 2

B. 3

C. 6

D. 8

9514 1404 393

  A.  2

Step-by-step explanation:

The perimeter is the sum of the side lengths:

  48 = (3t +3t) +(4t +4t) +(7t +6)

  42 = 21t . . . . . . . . . . . . . . . . . . . collect terms, subtract 6

  2 = t . . . . . . . . divide by 21

there are no figures how am i supposed to answer this question

step-by-step explanation:

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.