kaylakrasinski kaylakrasinski

20-09-2021
Mathematics

contestada

if m is the midpoint of AB, AM =7x-3 and MB =4x+12. find the value of x and the length of AB

Respuesta :

ghaithgh ghaithgh

20-09-2021

Answer:

A___M___B

AM = MB

7x -3 = 4x +12

7x - 4x = 12 + 3

3x = 15

x = 15/3

x = 5

AM= 7x -3 = 7(5) - 3 = 35 - 3 = 32

MB = 4x + 12 = 4(5) + 12 = 20 + 12 = 32

AB = AM + MB

AB = 32 + 32 = 64

So; X = 5 , AB = 64

I hope I helped you^_^

Answer Link

Otras preguntas

The formula Q = MCT where Q = heat flow, M = mass, C = specific heat, and T = change of temperature is used to calculate heat flow. Solve this formula for T.

who is on Emergency dispatch ship without permission - the Cold equation

You have recently graduated with an accounting degree. Use the Web to investigate what exactly is involved in becoming a Certified Public Accountant

a system of equations is shown below: x y = 3 2x − y = 6 the x−coordinate of the solution to this system of equations is _____.

antonyms: match the word with the word or phrase most nearly its opposite. resilient a. fragile b. sensible c. messy d. unique

solve the system of equations 2x 3y = 40 and –2x 2y = 20. a. x = –6, y = 4 b. x = 10, y = 20 c. x = –10, y = 20 d. x = 2, y = 12

Why do scientists believe that dark matter exists even though it cannot be seen?

what is the value of x in the solution to the system of equations below? 6x 3y = 13 3x - y = 4 1 (5/3) (8/3) (7/3)

Which two countries were split by civil wars between Arab Muslims in the north and non-Muslim groups in the south?

which type of muscle is striated? a skeletal b smooth c cardiac d both a and c