lena4042 lena4042

02-11-2019
Mathematics

contestada

twice the difference of a number and 9 is 7

Respuesta :

Jessicaalvarez2006 Jessicaalvarez2006

02-11-2019

(x-9)^2=7
“twice the difference of a number” would mean x-9 twice equals 7

Answer Link

ujalakhan18 ujalakhan18

02-11-2019

Answer:

x=12.5

Step-by-step explanation:

Let the number be x

2(x-9)=7

2x-18=7

2x=7+18

2x=25

x=25/2

x=12.5

Answer Link

Otras preguntas

4+0.4+0.0024 in Standard Form

Select the correct answer. Which word or phrase correctly completes this sentence? Les mémorisent les dialogues pour la pièce de théâtre. OA. ballerines OB. met

How the political and economic transformations in the world led to the creation of the silk road and how the silk road in return, affected the cosmopolitan worl

A boy throws a ball vertically up it returns the ground after 10 seconds find the maximum height reached by the ball

Let E be the event where the sum of two rolled dice is greater than or equal to 7. List the outcomes in Ec.

What is the probabily of the 90th percentile given mean of 262 and a standard deviation of 45

The temperature of a thermometer increases during a chemical reaction.What happens to the energy of the reaction (system)? A. The reaction releases energy (- or

A cake decorator is rolling a square of fondant into a rectangle. the area of the rectangle can be represented by the expression 1.5s(2s). simplify the expressi

Write an essay (paragraphe) ► Mon ami(e) favori(te) ➤ Moi-même on Write an essay ( paragraphe ) ► Mon ami ( e ) favori ( te ) ➤ Moi - même

In a given year, a marketing firm has the following costs: $560,000 in wages and salaries paid to employees; $74,000 in rental payments for office space; and $8