3 years ago

How many pennies would you need to make a stack that is an inch high?

Mathematics

1 answer:

satela [25.4K]3 years ago

3 0

A penny is about 1/16 inch thick. So it would be 16 pennies.

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Step-by-step explanation:

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pashok25 [27]

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Step-by-step explanation:

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3 years ago

An art supply store buys paintbrush sets for $2 and sells them at a markup of 240%. One day, they decide to put the sets on sale

pav-90 [236]

Answer:

A. <em>6.12</em>

Step-by-step explanation:

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2 years ago

Read 2 more answers

Complete the equation of the line through (3,-8)(3,−8)left parenthesis, 3, comma, minus, 8, right parenthesis and (6,-4)(6,−4

miv72 [106K]

$y=mx+b$
$(3;-8)\rightarrow x=3;\ y=-8;\ (6;-4)\rightarrow x=6;\ y=-4$

$substitute:\\\\ \left\{\begin{array}{ccc}-8=3m+b\\-4=6m+b&|\cdot(-1)\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}-8=3m+b\\4=-6m-b\end{array}\right}\ \ \ |add\ both\ sides\\.\ \ \ \ -4=-3m\ \ \ |:(-3)\\.\ \ \ \ m=\dfrac{4}{3}\\\\substitute\ the\ value\ of\ m\ to\ first\ equation:\\\\3\cdot\dfrac{4}{3}+b=-8\\\\4+b=-8\ \ \ |-4\\b=-12\\\\Answer:\boxed{y=\dfrac{4}{3}x-12}$

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3 years ago