Answer:
The amount of DDT in a fish
Step-by-step explanation:
The response variable is the focus of a question in a study or experiment. Is the variable you are measuring and trying to explain.
In this case, is what the scientist is measuring and using to compare the fish species: the amount of DDT in a fish.
The explanatory variable is what drives changes in the response variable (usually the indendent variable). In this study, the explanatory variable would be the species of fish.
Answer:
18x + 15
Step-by-step explanation:
Combine like terms & simplify the given expression:
9x - 4 + 4x + 5x + 19
(9x + 4x + 5x) - 4 + 19
(13x + 5x) + (19 - 4)
(18x) + 15
18x + 15 is your answer.
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Answer:
Any choices or pictures??
Step-by-step explanation:
Answer:
for a it would be 11/18 and for b it would be 4/9
Step-by-step explanation:
This is because I did the same butterfly method. 5 times 5 times 18 which is 90 for 5/9 and 9 times 18 is 99 for 11/18, you can also write it as 5/9 and 11/18 but cross multiply. This is also what I did with the second one.