1) A part of an expression separated by addition, subtraction, or an equality symbol is a
1 answer:
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Answer:
Both questions are true.
Step-by-step explanation:
The general mathematical equation of a line can be written as .
If we rearrange the two equations given in the question as follows:
and
We can see that they follow the general equation we defined earlier so we can say that they represents linear lines.
The given in the second question also represents a similar linear line with a different slope.
So the two questions are both true.
I hope this answer helps.
Answer:
The difference of 8 times a number r and 12 is solved for a number r and is given by
Step-by-step explanation:
Given problem is the difference of 8 times a number r and 12
It can be written as
To simplify the above expression :
8r-12
( using addition property of equality )
(using division property of equality )
Therefore
Therefore the difference of 8 times a number r and 12 is solved for a number r and is given by
The cost of 1kg of coal mined from the ore is $0.0397
Data;
- 1 ton = $35.99
- 1kg = ?
To find the cost of 1kg of coal, we can simply and equate 1 ton to its equivalent in ton and the solve.
let's write this and equate it
1 ton = $35.99
907kg = $35.99
1kg = x
Let's cross multiply both sides and solve for x
The cost of 1kg of coal is $0.0397
Learn more on proportions here;