Answer:
(x,y)=(3,14)
Step-by-step explanation:
y-6x=-4 , y=-4+6x
y-2x=8, y=8+2x
(y=)-4+6x=8+2x
6x-2x=8+4
4x=12
x=12/4
x=3, then
y=-4+6*3=-4+18=14
(x,y)=(3,14)
Answer:
1)-5
2)-15
3)1
4)-11
5)-70
if negative use () for example
(-2)-7+4
Answer:
3 hours
Step-by-step explanation:
Step one:
given
Andrea started 6 miles ahead of Peter and is traveling at a rate of 12 miles per hour.
let the number of hours be x
and the total distance traveled be y
y=6+12x------------1
<em>the initial distance is 6 miles</em>
<em>the distance traveled after x hours = 12x</em>
Peter is traveling at a rate of 14 miles per hour.
y=14x------------2
<em>the initial distance is 0 miles</em>
<em>the distance traveled after x hours = 14x</em>
Step two:
let us equate the two expressions above
6+12x=14x
14x-12x=6
2x=6
divide both sides by 2
x=6/2
x= 3 hours
it will take 3 hours for both of them to cover the same distance
72 orders in 3 days
that means
In 3 days, the number of orders = 72
Now to find the number of orders per day, i.e number of orders in 1 day
for this divide the total number of orders with the number of days
Thus, there are 24 orders per day
Answer : 24 orders per day
