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qaws [65]
3 years ago
8

What is 66 tens +20 tens

Mathematics
2 answers:
dimaraw [331]3 years ago
6 0

Answer:

860.

Step-by-step explanation:

66 x 10= 660

20 x 10= 200

660+200= 860.

postnew [5]3 years ago
4 0

Answer:880

Step-by-step explanation:

66 x 10=66020 x 10=200200+660=880

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On the first 4 exams of his language class, Ishaan got an average score of 82. What does he need on the next exam to have an ove
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Ishaan to have a score of 97 on the next exam have an overall average of 85

What is the mean of exam scores?

The mean of exam scores is the sum of the scores divided by the number of exams taken, more like an average of all scores

Initially, average score on 4 exams is 82

average=total score/number of exams

average score on 4 exams=82

total score =unknown=assume it is

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In order to have an overall average score of 85, we would sum the total score of 4 exams and the fifth exam and divide by 5 exams

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