The sum of two number is 18. 5 times the first number subtracted from 4/7bof the second number is 14. Find the number

Required numbers are x = -0.5 and y =18.6

Step-by-step explanation:

Let the two numbers be x and y

Their sum is 18 i.e x+y= 18

4/7y-5x= 14

We need to find the numbers x and y

Solving both equations to find value of x and y

From equation 1 we can find value of x and put in equation 2 i.e

x=18-y

Putting the value of x in equation 2

Now finding x

So, Required numbers are x = -0.5 and y =18.6

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,