Elijah has already sold $40 worth of tickets for
a local raffle. he has 5 tickets left to sell at $5 per
ticket

answer:

walking speed = 2 mph.

running speed = 8 mph.

step-by-step explanation:

let her walking speed be x mph, then her running speed is x + 6 mph

speed = distance / time. take the first 1 1/2 hours:

x + 6 =   y / 1.5   where y = distance travelled in that time

rewriting:

x + 6 = 2y / )

and the last 3 hours:

x = z / (2)   where z = distance travelled in that time.

also we have the equation:

y + z = )

substitute x = z/3 into equation (i):

z/3 + 6 = 2y/3

multiply through by 3:

z + 18 = 2y

2y - z = 18 )

y + z = )   adding these 2 equations:

3y = 36

y = 12 miles,

so z = 18 - 12 = 6 miles.

now find   the value of x:

from equation (2):

x =   z/ 3

= 6/3

= 2 mph.

therefore running speed = 2 + 6 = 8 mph.

answer:

6y -8

step-by-step explanation:

8y-2(y+4)

distribute the 2

8y -2y -8

combine like terms

6y -8

answer: 5(5x+3y),

−6(3x+y)s

step-by-step explanation:

25x+15y

25x+15y

=5(5x+3y)

second problem

−18x−6y

−18x−6y

=−6(3x+y)