3 years ago

Tenths and Hundredths write each fraction or mixed number as a decimal 1/5=

Mathematics

1 answer:

Olegator [25]3 years ago

4 0

1/5 as a decimal is .2 or 20%

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The difference of sample means of two populations is 55.4, and the standard deviation of the difference of sample means is 28.1.

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Can y'all please help.

sattari [20]

Answer:

See explanation

Step-by-step explanation:

Step 1. Substitute for d to solve for n:

From the first equation:

$d=70-n$

Then substitute it into the second equation:

$0.1(70-n)+0.05n=5.5\\ \\7-0.1n+0.05n=5.5\\ \\7+(-0.05n)=5.5\\ \\-0.05n=5.5-7=-1.5\\ \\n=\dfrac{-1.5}{-0.05}=30$

Step 2: Substitute for n to solve for d:

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There are 40 dimes and 30 nikels in the piggy bank

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3 years ago

X over 2 + 1 equal 6

Nataly_w [17]

First isolate $\frac{x}{2}$ by subtracting 1 from both sides of the equation.

That gives you $\frac{x}{2} = 5$ .

From here, since x is being divided by 2, multiply both sides of the equation by 2.

So x = 10.

Work is attached in the image below.

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Please help me on geometry

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