emailaarushisarkar emailaarushisarkar

13-07-2020
Mathematics

contestada

If 18 , x , y , -3 are in A.P then find x + y.

Respuesta :

09pqr4sT 09pqr4sT

13-07-2020

Answer:

15

Step-by-step explanation:

If this is an arithmetic progression, then there is a common difference.

-3-18 = -21

-21/3 = -7

18 - 7 = x

x = 11

11 - 7 = y

y = 4

4 - 7 = -3

x + y

11 + 4 = 15

Answer Link

Otras preguntas

Find two consecutive number which add up to 89. What are the steps.

is freshwater drum a consumer

Suggest the best imperial unit to measure: 1. The distance from London to New York 2. The amount of water in a jug 3. The weight of a pencil 4. The height of a

How do you find perimeter

Why was the Berlin wall built?

WHAT IS THE SQUARE ROOT OF 55

Laura cuts 64 inches of ribbon into two parts and give her mom one part. Laura's part is 28 inches long. Her mom cuts her ribbon into 6 equal pieces. How long i

3 tons=how many pounds

Which choice below would affect the rate of reaction in the opposite way from the other four? a. Cool the reaction down b. Add a catalyst c. Decrease the pre

Suggest the best imperial unit to measure: 1. The distance from London to New York 2. The amount of water in a jug 3. The weight of a pencil 4. The height of a