Sue has $40,000 in her savings account. she use some of the money to put towards a house. she has $36,479 left. how much did she put towards the house. solve and write an equation with a variable to represent the unknown.

x = $3,521

Step-by-step explanation:

let the amount of money that she put towards a house be represented by the variable x

Hence,

total savings = amount put towards house + amount left

$40,000 = x + $36,479   (rearrange)

x + $36,479  = $40,000   (subtract $36,479 from both sides)

x   = $40,000 -  $36,479

x = $3,521

the answer is 31.27mph

- "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."