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Mathematics, 05.12.2019 19:31 Gearyjames8
Tim is a postman that works at a local post office. the basic postage is $1.25 and covers any letter that is lighter than 7.5 grams. for heavier letters, extra postage of $0.87 is needed for every 10 grams than is more than 7.5 grams. what is the postage needed for a letter that is 37.5 grams?
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Mathematics, 21.06.2019 15:00
Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.
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Mathematics, 21.06.2019 17:00
Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.
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Tim is a postman that works at a local post office. the basic postage is $1.25 and covers any letter...
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