Solve the following system of equations using the elimination method. 5x + y = 9 –10x + 7y = 18 Question 6 options: A) (2,–6) B) (–7,3) C) (3,–4) D) (1,4)

Step-by-step explanation:

5x + y = 9

-10x + 7y = 18

10x + 2y = 18

-10x + 7y = 18

9y = 36

y = 4

5x + 4 = 9

5x = 5

x = 1

(1,4)

answer is D

Eight of the truck =m 162 inches
height of the bridge under which vehicles pass = 12 feet 5 inches
                                                                            = (12 * 12) + 5 inches
                                                                            = 144 + 5 inches
                                                                            = 149 inches
we arrived at the above deduction from the fact that 1 feet is equal to 12 inches.
now 
difference in height of the truck and the bridge is = 162 - 149 inches
                                                                              = 13 inches