-3x - 8 = 50 Anyone know how to solve this by elimination?
2 answers:
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John and Paul want to go to the cinema, they know that the ticket costs $1 and each food box cost $3. If they spent $14, how many food boxes did each of them buy?
In this case since there is two people, we include that 2. 3x is representing the cost for buying x food boxes and 1 the cost for the ticket. 14 is the total amount of money spent.
Each of them buy 2 food boxes.
Answer:
The perimeter of both figures is equal to
Step-by-step explanation:
step 1
we know that
The perimeter of a square is equal to
where
b is the side length of the square
we have
substitute
step 2
we know that
The perimeter of a rectangle is equal to
we have
substitute
step 3
Equate both perimeters and solve for x
step 4
Find the perimeter of both
<em>square</em>
<em>rectangle</em>
Answer:
Step-by-step explanation:
This problem deals with a function. All this question is asking is to plug in -4 every time an x appears.
So, let's do that: