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ASHA 777 [7]
3 years ago
15

Use quadratic regression to find

Mathematics
1 answer:
emmasim [6.3K]3 years ago
3 0
Y= 4x^2 + 19x - 5 :)!
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Ivan finished Four-fifths of his math homework problems and all 3 problems for his science homework before dinner. If he finishe
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Answer:

Step-by-step explanation:

Since we know that Ivan finished all his science problems (3) we know that there are only math problems remaining

substract the science problems from the total 43-3=40

And now we can determine the amount of math problems

4/5 = 40/x where x is the total amount of math problems Ivan was assigned

cross multiply

4x = 5*40

4x=200

isolate the variable

4x/4 = 200/4

x=50

So Ivan was assigned a total of 50 math problems

(Note*) since there are 40 math problems finished 40/50 is equal to 4/5. Just a tip if you don't want to do the whole calculation

Hope this helps!

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