The sum of two numbers is 18, 5 times the number subtracted from 4 over 7 of the second number is 14 find the number

First number x = -0.6

Second number y = 18.66

Step-by-step explanation:

Let the first number = x

and Second number = y

Sum of two numbers is 18. We can write it in mathematical expression as:

5 times the number subtracted from 4 over 7 of the second number is 14. We can write it in mathematical expression as:

So, solving the equations simultaneously we can find value of x and y

Let:

Finding value of x from equation 1 and put it in eq(2)

Put in equation 2

So, Value of y= 18.66

Now finding value of x, By putting value of y in eq(1)

So, First number x = -0.6

Second number y = 18.66

bull

step-by-step explanation:

- "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."