It is one answer with multiplicity 2
Answer:
pizza: $4, coke: $3, chips: $2
Step-by-step explanation:
Lets make the price of a pizza=p a coke= k and a bag of chips=c
then we have the following equations
p+k+c=9
p+2k=10
2p+2c=12
Because p is common in all the equations we shall make it the subject of each equation.
p=9-(k+c)...........i
p=10-2k..............ii
p=6-c...................iii
We then equate i and iii
9-(k+c)=6-c
9-k-c=6-c
putting like terms together we get:
9-6=-c+c+k
1 coke, k=$3
replacing this value in equation ii
we get p=10-2(3)
p=10-6= 4
1 pizza, p=$4
replacing this value in equation iii
4=6-c
c=6-4
=2
a bag of chips, c=$2
Thus, a pizza, a coke and a bag of chips= pizza: $4, coke: $3, chips: $2
90 kilograms and gained weight at a constant rate.after 8 months ,he weighed 138 kilogramsin equation formy = mx + b138 = m(8) + 90solve for m
m = ( 138 - 90)/ 8m = 6 kg / month is the rate on which the young sumo wrestler gaining weight
Answer: 
Step-by-step explanation:
By definition the Slope-Intercept form of an equation of a line is:
Where "m" is the slope of the lines and "b" is the y-intercept.
You have the following equation of the line given in the exercise:
Then, in order to write it in Slope-Intercept form, you need to solve for the variable "y".
The steps are shown below:
1. You must apply the Addition property of Equality adding 
to both sides of the equation:
2. Finally, you must apply the Division property of Equality dividing both sides of the equation by 3. Then, you get:
