A question on a test asks students to find the speed at which a car travels. The graph shows a proportional relationship between the distance traveled in miles and time in hours. incorrectly says that the speed of the car is 1/61 mile per hour. What is the speed of the car? What error might have made?

Since, speed of a car = distance traveled/time taken

From  the graph attached,

A point (1, 60) lies on the line shown in graph.

At this point speed of the car =  

                                               = 60 miles per hour

But Billy says the speed of the car is 1/60 miles per hour.

So the error in the Billy's answer is that he has used the wrong formula to calculate the speed.

(As per Billy, speed = )

Step-by-step explanation:

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.