3 years ago

47 in = ? ft ? in 3 ft 11 in 4 ft 0 in 3 ft 9 in 564 ft 0 in

Mathematics

1 answer:

Veseljchak [2.6K]3 years ago

8 0

Answer:

3ft 11 in

Step-by-step explanation:

1 foot equals 12 inches, 12 × 3 = 36 = 3 feet + 11 inches = 47 inches = 3ft 11in

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4 years ago

Sarah has a cell phone plan that charges $0.12 per minute plus a monthly fee of $21.00. She budgets $65.50 per month for total c

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3 years ago

Andy, Beth, Charlie, and Daniel take a test with thirty questions. Andy and Beth together get the same number of questions wrong

olga_2 [115]

Answer:

Andy gets 7 questions wrong.

Step-by-step explanation:

Let A, B, C and D be the number of questions answered wrong by Andy, Beth, Charlie, and Daniel, respectively.

Andy and Beth together get the same number of questions wrong as Charlie and Daniel together:

$A+B =C+D$

Andy and Daniel together get four more questions wrong than Beth and Charlie do together:

$A+D =B+C+4$

Charlie gets five questions wrong:

$C=5$

Solving the linear system:

$C=5\\A+B =5+D\\A+D =B+9\\\\A+B =5+D\\A-B =9-D\\\\2A = 14\\A=7$

Andy gets 7 questions wrong.

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