3 years ago

What single percentage change is equivalent to a 9% decrease followed by a 17% decrease?

Mathematics

1 answer:

Leni [432]3 years ago

4 0

Answer:

26% decrease is the equivalent percentage change

Step-by-step explanation:

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Last year, Michael opened an investment account with $5400. At the end of the year, the amount in the account had decreased by 2

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He would have $4131 left from $5400 with a decrease with 23.5%

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3 years ago

Stefan measured a weight of a package as 15.375 pounds. The actual weight of the package is 15.125 pounds.

Ainat [17]

15.375/15.125 x 100 =~98.4

The ~% is 98.4%
Error = ~2.6%

Part B

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3 years ago

The following numerically ordered sequence of numbers has a mean of 17 and a median of 18.

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The values of a and b equals 10

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3 years ago

Solve x2 − 10x = −13.

aev [14]

Answer:

Step-by-step explanation:

First, let's rearrange the given equation into something more recognizable. If we add 13 to both sides, we now have the polynomial $x^{2}-10x+13$ . We can now use the quadratic formula to solve.

Remember that the quadratic formula is

$\frac{-b+/-\sqrt{b^{2}-4ac } }{2a}$

Substitute the numbers from the equation into the formula.

$\frac{-(-10)+/-\sqrt{(-10)^{2}-4(1)(13) } }{2(1)}$

Simplify:

$\frac{10+/-\sqrt{100-52} }{2}$

$\frac{10+/-\sqrt{48} }{2}$

Here, I'm going to assume that there was a mistype in option B because if we divide out the 2 we end up with $5+/-\sqrt{48}$ .

Hope this helps!

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2 years ago

To play a game you spin a spinner like the one shown you win if the arrow lands in one of the areas marked win lee played this g

matrenka [14]

The experimental p=8/48=1/6

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3 years ago