I’m not 100% certain but i’m pretty sure 1:3 works
Answer:
$4
Step-by-step explanation:
Given that
total cost of 8 identical pens and 2 identical files is $32
And, the The total cost of 3 such files would be the same as the total cost of 4 such pens
We need to find out the cost of each file
So let us assume the following things
Pens be x
File be y
Now
8x + 2y = $32 ....(1)
3y = 4x.........(2)
y = 4x÷ 3
Now put the value of y in equation 1
8x + 1.33x = 32
x = $3.55
x = $4
Answer:
Step-by-step explanation:
If the variation is proportional dividing the y-value by the x-value will give the same result for all table entries. That quotient is the constant of variation (k).
Here 6.4/4 = 11.2/7 = 16/10 = 20.8/13 = 1.6
The value of y varies directly as x, and the constant of variation is 1.6. The equation is ...
y = 1.6x
Answer:
1
Step-by-step explanation:
So for this type of problem we use the formula with each variable (besides m which is slope) representing a different coordinate. (e.g. -3 could be in this case.) First, let's define which is which:
(3,2):
(-2,-3):
Now we need to replace the variables with their known values:
Next, let's do the subtraction to simplify:
And we can complete the division (all fractions are division!) to simplify even further:
Therefore, the slope of the line passing through the points (3,2) and (-2,-3) is 1.
Answer:
See explanation
Step-by-step explanation:
The texts in the question is distorted and unclear; So, I will provide a general explanation of solving an equation with 1 variable.
A similar question that can be found online is:
--- to solve for x
First, collect all like terms
Distribute the expression on the left-hand side
Simplify like terms
Divide both sides by 4