Question

The Mecklanberg public school district stipulates that a standard school day will average at least 5.5 hr excluding meal breaks. For the first 4 days of one school week, bad weather resulted in school days of 4 hr, 6.5 hr, 3.5 hr, 6.5 hr. How long must the friday school day be in order to average at least 5.5 hr for the week?

4, 6.5, 3.5, 6.5, + x = 20.5+ x /5=5.5
=20.5+ x = 27.5
x = 7

or

5 working days, total working hours 5.5
=5.5x5=27.5
=4+6.5+3.5+6.5+friday=20.5 + friday
=27.5-20.5=7 hrs
x=7 hrs.

Is this problem going to be an equation or an inequality? And how would I

Answer 1

How would I write it?

Answer 2

1st aproach is coreect

Answer 3

would it be an equation or equality

Answer 4

it is eqation

Answer 5

Let Friday hours = F
total required hours for week = 5 * 5.5 = 4 + 6.5 + 3.5 + 6.5 + F
F = 27.5 - 20.5 = 7 hours

Answer 6

so kropot72, would it be an equation

Answer 7

The answer is just a number followed by the units (hours). A series of equations is needed to fully show how the answer was obtained.

Answer 8

Great. Thank you.

Answer 9

You're welcome :)