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
VER TODAS LAS RESPUESTAS ( 89+ )
Otras preguntas
what are some physical changes that occur at school? at home ? in nature ?
if x = -3 calculate the value of: x3 + x
Find the value of 2 in this equation. 33- (8t) = 15
what is the time interval between the release of the ball and the time it reaches its maximum hieght? the acceleration gravity is 9.81m/s^2 and the maximum heig
How do I write 4.76325 as a fraction?
briefly describe the five stages of the cell cycle
how do i persuade students to enter the school talent show? i have to write it as an article in the school magazine.
why do the two elements silver and iron have different properties?
How do you calculate the initial speed given time and displacement? The question is: The longest kick in CFL history was 83.2m. If the ball remained in the air
In class 6, 80percent of the children like crisps. 75percent of the children who like crisps also like chocolate. In class 6 what percentage of the children lik
