Please solve the math problem... I will mark you brainliest

x = 8

Step-by-step explanation:

add all corners and make it equal to 180

90 + 4x+13 +6x-3 = 180

100 + 10x = 180

10x = 80

x = 8

don't give

take it once

try and try and you will not

happy to

pls mark as brainliest

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."