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2 years ago

Im dum on this but smart on other things look at points too...

Mathematics

1 answer:

Over [174]2 years ago

4 0

Step-by-step explanation:

Whole numbers = Natural numbers + "0"

Integers = Whole numbers + Negative counterparts

Since the set do contains negative numbers, only Rational numbers and Integers are correct. (D)

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Find the value of x in (4x -5) = 7(x -5)

Vlad1618 [11]

Answer: x = 10

Step-by-step explanation:

( 4 x − 5 ) = 7 ( x − 5 )

Simplify 7 ( x − 5 ) .

4 x − 5 = 7 x − 35

Move all terms containing x to the left side of the equation.

− 3 x − 5 = − 35

Move all terms not containing x to the right side of the equation.

− 3 x = − 30

Divide each term by − 3 and simplify.

x = 10

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3 years ago

Figure out the slope of the line that passed through each pair of points (4,-11) and (7,-8)

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$slope = \frac{ - 8 - ( - 11)}{7 - 4} \\$

$slope = \frac{ - 8 + 11}{7 - 4} \\$

$slope = \frac{3}{3} \\$

$slope = 1$

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3 years ago

The air pressure inside Jason’s bike tires decreases by about 6% each week. The original pressure was 45 pounds per square inch

Brrunno [24]

Compound percentage reduction can be calculated by multiplying the initial number by (1-x)^t where x is the percentage reduction (/100, i.e. 1% reduction is 0.01), and t is the number of times it has reduced.

So:
a) $p=45(1-0.06)^t=45*0.94^t$
Where t is the number of weeks.

We can then just substitute in to work out the final pressure:
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