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gizmo_the_mogwai [7]

3 years ago

15

A student has taken three math tests so far this semester. His scores for the first three tests were 65, 67, and 69. Suppose h

is test scores continue to improve at the same rate. What will be his grade on the sixth (and final) test? What will be his total score for all six tests?

1 answer:

Aleonysh [2.5K]3 years ago

7 0

Answer:

75

Step-by-step explanation:

Scores for his first tests were 65, 67, 69.

Rate of change: +2

y=2x+63; 63 is the 0th test he took, his first test was 65, so 65-2=63. 2x is the rate of change, his tests scores increase by 2 each time.

x=6, 6th test score

y=2(6)+63

y=12+63

y=75

So, on his 6th test he will get a score of 75

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Naddik [55]

Question:

A shop is having a sales all items are reduced by 25%. Work out the sale price of an item normally priced at £60?

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Given

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