We could use the numbers and the difference of the original cost - the end price in a equation.
53 × x/100 = 15.9
Cross multiply 100 × 15.9.
53x=1590
Divide both sides by 53.
x=30
The coupon was 30%
Answer:
90degrees
Step-by-step explanation:
The sum of complimentary angles will always be 90degrees
29 , 35 , 41
the sequence is going up
in 6s
Given:
Consider the below figure attached with this question.
The table represents a proportional relationship.
To find:
The missing value from the table.
Solution:
If y is proportional to x, then
...(i)
Where, k is a constant of proportionality.
The relationship passes through the point (-3,-1). Substituting 
in (i), we get
Putting 
in (i), we get
...(ii)
We need to find the y-value for 
.
Substituting in (ii), we get
Therefore, the missing value in the table is -4. Hence, option D is correct.
The scores she had on her five tests according to the task content are; 78, 82.7, 85.4, 87.7, 90.
<h3>What were the scores on her five tests?</h3>
It follows from the task content that the range of her scores was 12 and mode is 90.
Hence, her lowest score must be; 90-12 = 78.
The other two scores apart from the median are therefore; (78+85.4)/2 = 82.7 and (85.4+90)/2 = 87.7.
Read more on median and mode;
brainly.com/question/452652
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