Answer:
c=1146
Explanation:
Given 5y=3478 - 3c
Then if y= 8 then substitute y in the equation as
5*8=3478-3c
40=3478-3c ------collect like terms as;
3c=3478-40
3c=3438
c=3438/3 =1146
The best scale and interval to adopt for the amount of Fluoride axis would be 0 to 8 with intervals of 0.2
To make a decision on the scale and interval to adopt when making a graph ;
- We need to examine the the range of the values in the distribution.
- Data for the amount of Fluoride ranges from 0.4 to 7.1
- The number of values in the distribution is 7.
- Lower scale value must be below the minimum Fluoride value preferably 0
- Maximum scale value must be above the maximum Fluoride value.
- Hence an interval of 0 to 8 would suit the axis.
- The interval is the value of each unit represented on the graph.
- A scale of 4 would be too large to depict all the 7 values with an interval of 8 units
- Hence, the most reasonable scale from the option would be 0.2 as it would allow the points to be properly spaced on the graph.
Learn more : brainly.com/question/1846548
The expression
is a product expression
The denominator of the simplified fraction is 3n -2
<h3>How to determine the denominator?</h3>
The expression is given as;

Divide the first fraction by 2/2

Evaluate the above product

The above fraction is a simplified fraction of
, and the denominator is 3n - 2
Hence, the denominator of the simplified fraction is 3n -2
Read more about fractions at:
brainly.com/question/15215592