Answer:
-13 is your answer.
Step-by-step explanation:
What you do is you first subtract the |13-15| to get |-2|. Since it is an absolute value it becomes a 2.
2-15=-13 which is your answer.
Answer:
All real numbers would be the solution
Step-by-step explanation:
2y - 4x =2 and y = 2x + 1
We solve but placing the value of y into the first equation:
2(2x + 1) - 4x = 2
Next we distribute the 2 through the parenthesis:
4x + 2 - 4x = 2
Now we gather like terms:
2 = 2 ( note the 4x and - 4x cancel out)
Since 2 =2 this tells us that all real numbers would work.
X= sandwiches
y= bottles of water
QUANTITY EQUATION
x+y= 200
COST EQUATION
$3x + $0.75y= $318.75
STEP 1
solve for one variable in quantity equation and substitute in cost equation
x+y= 200
subtract y from both sides
x= 200-y
STEP 2
substitute 200-y in for x
$3x + $0.75y= $318.75
3(200-y) + 0.75y= 318.75
600 - 3y + 0.75y= 318.75
combine like terms
600 - 2.25y= 318.75
-2.25y= -281.25
divide both sides by -2.25
y= 125 number of water bottles
STEP 3
substitute y=125 in either equation
x+y= 200
x + 125= 200
x= 75 sandwiches
ANSWER: There were 75 sandwiches and 125 bottles of water.
Hope this helps! :)
P.E.M.D.A.S
First , you multiply.
200+(-16)4
200+(-64)
Since they have different signs, you subtract and keep the sign of the greater absolute value.
200+(-64)=136
GIVE ME THE ANSWER!!!!!!!!!!!!!!!!!!
