A textbook store sold a combined total of 435 psychology and sociology textbooks in a week. The number of sociology textbooks sold was 61 le

Question

A textbook store sold a combined total of 435 psychology and sociology textbooks in a week. The number of sociology textbooks sold was 61 less than the number of psychology textbooks sold. How many textbooks of each type were sold?

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Linh Đan 3 months 2021-07-19T22:28:04+00:00 1 Answers 2 views 0

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    2021-07-19T22:29:35+00:00

    Answer:

    248 psych books, 187 soc books.

    Step-by-step explanation:

    x psych books were sold

    x-61 soc books were sold

    Total books was 435.

    So –

    x+x-61 = 435

    2x-61 = 435

    2x = 496

    x = 248.

    so x-61 = 187 and

    248+187 = 435.

    248 psych books, 187 soc books.

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