jadelynrose jadelynrose

21-08-2020
Mathematics

contestada

Use the number line below, where RS = 7y +5, ST = 2y + 7, and RT = 14y - 28.
a. What is the value of y?
b. Find RS, ST, and RT.

Respuesta :

mhanifa mhanifa

21-08-2020

Answer:

a. 8

b. 61, 23, 84

Step-by-step explanation:

As we can see, point S is between points R and T, therefore:

RS + ST = RT
7y + 5 + 2y + 7 = 14y - 28
9y + 12 = 14y - 28
14y - 9y = 12 + 28
5y = 40
y = 40/5
y = 8

------------

RS = 7y+5 = 61
ST = 2y + 7= 23
RT = 14y - 28 = 84

Answer Link

Otras preguntas

Solve for x. 4.25x = 21.

What’s contact force ?

help please, really confused

PowerPoint displays many that are varied and appealing and give you an excellent start at designing a presentation. However, you have a specific topi

the worst, most violent pain lies not in injuries, but in the fact that you know for certain that within the space of an hour, then ten minutes, then half a min

A rapid mechanism is thought to govern the localization of AQP5 in response to changes in extracellular osmolarity. If this mechanism is independent of both PKA

La rutina de AndrésOrdena esta rutina de una manera lógica.___ Se afeita después de cepillarse los dientes. ___ Se acuesta a las once y media de la noche. ___ P

When Jason looked at his professor on the first day of class he thought that she was well-dressed, about 35 or 36 years old, probably married with a couple of k

At a wagon train speed of 15 miles a day, about how long would that trip take

A simple pendulum is made from a 0.75-m-long string and a small ball attached to its free end. The ball is pulled to one side through a small angle and then rel