2 years ago

Order of operations and cross reduce: I got 20/3 but I think I’m wrong

Mathematics

1 answer:

poizon [28]2 years ago

8 0

Answer:

130/81

simplified: 1 49/81

Step-by-step explanation:

I did the math

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Answer:

Step-by-step explanation:

Plugging in 32 for z, you get:

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2 years ago

We call a number peachy if every digit in the number is either a 3 or next to a $3.$ For example, the numbers 333, 83, 303 and 3

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3 years ago

Can y'all please help.

sattari [20]

Answer:

See explanation

Step-by-step explanation:

<u>Step 1.</u> Substitute for d to solve for n:

From the first equation:

$d=70-n$

Then substitute it into the second equation:

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

<u>Step 2:</u> Substitute for n to solve for d:

$d+n=70\\ \\d+30=70\\ \\d=70-30=40$

There are 40 dimes and 30 nikels in the piggy bank

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3 years ago