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3 years ago

Is 5.565656... a rational number

Mathematics

2 answers:

seropon [69]3 years ago

7 0

Answer:

Yes 5.565656 is a rational number

Step-by-step explanation:

How do we know?

Rational: Numbers that end and do not go on forever

Examples:

Decimals that end or repeat (in your case)

Fractions

Whole numbers

Square Roots

Kitty [74]3 years ago

5 0

Answer:

Yes

Step-by-step explanation:

A rational number is a number that can be expressed as a fraction. Since the numbers after the decimal are repeating, (it's just repeating 56 over and over) it can be written as a fraction.

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Solve the system of equations using substitution. Write the solution as an ordered pair.

IrinaK [193]

Answer:

(-3, 3)

Step-by-step explanation:

Substitute for y:

x+6 = -2x -3

3x = -9 . . . . . . . add 2x -6 to both sides

x = -3 . . . . . . . . divide by 3

y = (-3) +6 = 3 . . substitute for x in the first equation

The solution is ...

(x, y) = (-3, 3)

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3 years ago

A photographer is planning to enlarge a photograph by a scale factor of 1:5 . The original photograph has an area of 154 square

Step2247 [10]

Your answer should have been 3850 in^2

1^2/5^2 = 1/25

1/25 = 154/x
1x= 154 (25)
1x/1= 3850/1
x= 3850

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Answer:

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3 years ago

Mario went to a store and bought 3 slices of pizza. The guy at the register said " that would be $3.75". Mario then said "wait,

Zarrin [17]

Answer:

Step-by-step explanation:

Cost per slice

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Cost of 4 slices

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FromTheMoon [43]

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