The average of 5, 10, 15, and z is 20. What is z?

50

Step-by-step explanation:

Step 1:

5 + 10 + 15 + z / 4 = 20        Equation

Step 2:

30 + z / 4 = 20         Combine Like Terms

Step 3:

30 + z  = 20 × 4    Multiply 4 on both sides

Step 4:

z = 80 - 30      Subtract 30 on both sides

z = 50

Hope This Helps :)

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

answer

you start with $5 and save $10 a week until you have at least $45wer

step-by-step explanation: