−5 − 5/3 HELP PLZ...............................

Mathematics

2 answers:

S_A_V [24]3 years ago

4 0

-5 is the same as -5/1
-5/1 - 5/3
Find the common denominator which is 3 in this case and multiply the numerator by 3 to get the two fractions to the same denominator.
-15/3 - 5/3
Now subtract 5 from -15 which will be -20
-20/3 is the answer.
Turn it into a decimal if needed to. Or mixed fraction -6 2/3

Hitman42 [59]3 years ago

3 0

I hope this helps you

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BlackZzzverrR [31]

Problem 4

Answer: 47

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Work Shown:

f(x) = x^2 - 7x + 3
f(x) = (x)^2 - 7(x) + 3
f(-4) = (-4)^2 - 7(-4) + 3 ... replace each x with -4
f(-4) = 16 - 7(-4) + 3
f(-4) = 16 + 28 + 3
f(-4) = 44 + 3
f(-4) = 47

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Problem 5

Answer: See the attached image for the table

------------------------

Work Shown:

Plug in n = 27 and we get...
C = 26 + 10*n
C = 26 + 10*27
C = 26 + 270
C = 296
The input n = 27 leads to the output C = 296. This means that 27 people will have the cost be $296

Do the same for n = 39
C = 26 + 10*n
C = 26 + 10*39
C = 26 + 390
C = 416
The input n = 39 leads to the output C = 416. This means that 39 people will have the cost be $416

and also n = 43 as well
C = 26 + 10*n
C = 26 + 10*43
C = 26 + 430
C = 456
The input n = 43 leads to the output C = 456. This means that 43 people will have the cost be $456