Mathematics, 05.05.2020 02:01 tonyrod617
Alan used the expression StartFraction 5 over 9 EndFraction (F minus 32), where F is a temperature in degrees Fahrenheit, to convert a temperature from Fahrenheit to Celsius. He evaluated the expression as shown below and found that 45 degrees Fahrenheit was equivalent to –7 degrees Celsius.
StartFraction 5 over 9 EndFraction (F minus 32) = StartFraction 5 over 9 (45 minus 32) = 25 minus 32 = negative 7
What error did Alan make?
He substituted 45 for F instead of –7 and should have found the answer to be Negative 21 and two-thirds degrees Celsius.
He did not combine within the parentheses first before multiplying and should have found the answer to be 7 and StartFraction 2 over 9 EndFraction degrees Celsius.
He multiplied 45 by the fraction incorrectly and should have found the answer to be 49 degrees Celsius.
He divided 5F by 9 before subtracting 32 and should have found the answer to be 21 and StartFraction 4 over 9 EndFraction degrees Celsius.
PLEASE HELP
Answers: 3
Mathematics, 21.06.2019 21:50
What function has a range {yly< 5}? question on picture above^
Answers: 3
Mathematics, 22.06.2019 02:30
Ben works in his dads bakery packing bagels each package can have no more then 16 bagels 3/4 of the bagels in each package are plain what other fractions could represent the part of the bagels in each package that will be plain
Answers: 1
Mathematics, 22.06.2019 04:20
Atriangle abc has two side lengths of 28 ft. and 24 ft. if angle c is 91°, what's the measurement of angle b?
Answers: 1
Mathematics, 22.06.2019 04:30
The three sides of a triangle have lengths of 4x+3, 2x+8, and 3x-10. what is the length of the shortest side if the perimeter of the triangle is 136cm?
Answers: 1
Alan used the expression StartFraction 5 over 9 EndFraction (F minus 32), where F is a temperature i...
Biology, 27.08.2019 12:30
History, 27.08.2019 12:30
Social Studies, 27.08.2019 12:30
SAT, 27.08.2019 12:30
Mathematics, 27.08.2019 12:30
Biology, 27.08.2019 12:30
Advanced Placement (AP), 27.08.2019 12:30
Mathematics, 27.08.2019 12:30
English, 27.08.2019 12:30
Mathematics, 27.08.2019 12:30
Health, 27.08.2019 12:30
Social Studies, 27.08.2019 12:30
Geography, 27.08.2019 12:30
Mathematics, 27.08.2019 12:30
Biology, 27.08.2019 12:30