ksxshirley1 ksxshirley1

26-04-2020
Mathematics

contestada

If the mean of the four numbers 2x and 12 is 10, then x is

Respuesta :

26-04-2020

Answer:

4

Step-by-step explanation:

The mean of 2x and 12 is (2x+12)/2, so we get the equation:

(2x+12)/2 = 10 =>

x+6=10

x = 10-6 = 4

* Your question states four numbers, but you write only two... the answer could be wrong because of that.

Answer Link

Otras preguntas

Janet is painting her shed. She buys some gallon-sized paint cans that cost $15 each and 2 quart-sized paint cans that cost $4 each. The cost of Janet's total p

Which expression represents the measure of segment RS? 7x – 3 7x + 5 x + 5 x – 3

One problem that could impact satellites is space debris. Discuss this problem and give at least 1 solution to solve the problem of space debris.

In the formula A(t) = A0ekt, A(t) is the amount of radioactive material remaining from an initial amount A0 at a given time t and k is a negative constant deter

For a person with a Near Point (NP) = 45 cm, what would be his prescription's lens power = _________ diopters

What is the range of the given function? A. {x | x = –5, 1, 4, 6} B. {y | y = –7, –1, 0, 9} C. {x | x = –7, –5, –1, 0, 1, 4, 6, 9} D. {y | y = –7, –5, –1, 0,

athletes from all over the world

What are the main factors for the high material removal rate in broaching operations?

17. Higher Order Thinking Solve h - 156 = 34

A rectangular wooden block measures 10.0 cm × 4.00 cm × 2.00 cm. When the block is placed in water, it floats horizontally, with its bottom face 1.65 cm below