Raina, josh, and shen sent a total of 148 text messages during the weekend. shen sent 4 times as many messages as raina. josh sent 10 more messages than raina. how mant messages did they each send?

if raina=x

josh=y

shen=z

you have that

z=4x

y=x+10

x+y+z=148

solve the system and the results are

x=23

y=33

z=92

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

answer: 0.1,0.85

step-by-step explanation: