Difference between revisions of "Find a Number Problems"
From mispar
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<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle a+b=c\\\scriptstyle a+c=100b\end{cases}</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle a+b=c\\\scriptstyle a+c=100b\end{cases}</math><div class="mw-collapsible-content"> | ||
{{#annotask: | {{#annotask: | ||
− | [[category: #find | + | [[category: #find a number]] |
[[comment: a+b=c;a+c=100b]] | [[comment: a+b=c;a+c=100b]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle a:b=2:3\\\scriptstyle b:c=3:4\\\scriptstyle\left(a^2\sdot a\right)+b^2=\left(12+\frac{1}{2}\right)\sdot c\end{cases}</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle a:b=2:3\\\scriptstyle b:c=3:4\\\scriptstyle\left(a^2\sdot a\right)+b^2=\left(12+\frac{1}{2}\right)\sdot c\end{cases}</math><div class="mw-collapsible-content"> | ||
{{#annotask: | {{#annotask: | ||
− | [[category: #find | + | [[category: #find a number]] |
[[comment: (a²·a)+b²=12½c]] | [[comment: (a²·a)+b²=12½c]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle\left(a+b\right):c=3+\frac{2}{5}+\frac{1}{7}\\\scriptstyle\left(a+c\right):b=7+\frac{2}{3}+\frac{1}{4}\\\scriptstyle b=30\end{cases}</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle\left(a+b\right):c=3+\frac{2}{5}+\frac{1}{7}\\\scriptstyle\left(a+c\right):b=7+\frac{2}{3}+\frac{1}{4}\\\scriptstyle b=30\end{cases}</math><div class="mw-collapsible-content"> | ||
{{#annotask: | {{#annotask: | ||
− | [[category: #find | + | [[category: #find a number]] |
[[comment: (a+b)\c=3⅖⅐;(a+c)\b=7⅔¼;b=30]] | [[comment: (a+b)\c=3⅖⅐;(a+c)\b=7⅔¼;b=30]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle\left(a+b\right):c=\frac{3}{5}+\frac{1}{6}\\\scriptstyle\left(a+c\right):b=2+\frac{1}{3}\\\scriptstyle a=20\end{cases}</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle\left(a+b\right):c=\frac{3}{5}+\frac{1}{6}\\\scriptstyle\left(a+c\right):b=2+\frac{1}{3}\\\scriptstyle a=20\end{cases}</math><div class="mw-collapsible-content"> | ||
{{#annotask: | {{#annotask: | ||
− | [[category: #find | + | [[category: #find a number]] |
[[comment: (a+b)/c=⅗+⅙;(a+c)/b=2⅓;a=20]] | [[comment: (a+b)/c=⅗+⅙;(a+c)/b=2⅓;a=20]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle b:\left(c-a\right)=3+\frac{1}{3}\\\scriptstyle c:\left(b-a\right)=6\end{cases}</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle b:\left(c-a\right)=3+\frac{1}{3}\\\scriptstyle c:\left(b-a\right)=6\end{cases}</math><div class="mw-collapsible-content"> | ||
{{#annotask: | {{#annotask: | ||
− | [[category: #find | + | [[category: #find a number]] |
[[comment: b/(c-a)=3⅓;c/(b-a)=6]] | [[comment: b/(c-a)=3⅓;c/(b-a)=6]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle\left(a+b\right):\left(c-a\right)=4+\frac{1}{2}\\\scriptstyle\left(a+c\right):\left(b-a\right)=5\end{cases}</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle\left(a+b\right):\left(c-a\right)=4+\frac{1}{2}\\\scriptstyle\left(a+c\right):\left(b-a\right)=5\end{cases}</math><div class="mw-collapsible-content"> | ||
{{#annotask: | {{#annotask: | ||
− | [[category: #find | + | [[category: #find a number]] |
[[comment: (a+b)/(c-a)=4½;(a+c)/(b-a)=5]] | [[comment: (a+b)/(c-a)=4½;(a+c)/(b-a)=5]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle a+\frac{1}{4}\sdot\left(b+c\right)=b+\frac{1}{6}\sdot\left(a+c\right)=c+\frac{1}{9}\sdot\left(a+b\right)\\\scriptstyle b=20\end{cases}</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle a+\frac{1}{4}\sdot\left(b+c\right)=b+\frac{1}{6}\sdot\left(a+c\right)=c+\frac{1}{9}\sdot\left(a+b\right)\\\scriptstyle b=20\end{cases}</math><div class="mw-collapsible-content"> | ||
{{#annotask: | {{#annotask: | ||
− | [[category: #find | + | [[category: #find a number]] |
[[comment: a+¼(b+c)=b+⅙(a+c)=c+⅑(a+b);b=20]] | [[comment: a+¼(b+c)=b+⅙(a+c)=c+⅑(a+b);b=20]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle a:b=b:c\\\scriptstyle a\sdot b\sdot c=1000\end{cases}</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\begin{cases}\scriptstyle a:b=b:c\\\scriptstyle a\sdot b\sdot c=1000\end{cases}</math><div class="mw-collapsible-content"> | ||
{{#annotask: | {{#annotask: | ||
− | [[category: #find | + | [[category: #find a number]] |
[[comment: a·b·c=1000;a\b\c]] | [[comment: a·b·c=1000;a\b\c]] | ||
}}</div></div><br> | }}</div></div><br> |
Revision as of 17:13, 9 October 2022
Category | Comment | Link | Annotated text |
---|---|---|---|
word problem/find a number | repeated subtraction | מלאכת_המספר#TEa8 | Question: if we subtract 12 from the double of any number, then we subtract another 12 from double the remainder also, and double the remainder is 12, how much is the original number?
:![]() |
word problem/find a number | repeated subtraction | ספר_חשבון#QPoG | If one asks you: a number, you subtract a tenth from it, then you subtract again a tenth from the remainder, and 100 are left.
:How much was the original number before subtracting the two tenths? : ![]() כמה היה כל החשבון בטרם שהסרת ממנו ב' העשיריות |
word problem/find a number | repeated subtraction | מלאכת_המספר#j27H | Question: if the half of any amount plus one are subtracted, then the half of the remainder plus one, then the half of the remainder plus one, and one remains, how much is the original number?
שאילה אם מאי זה כמות ילקח חציו ואחד יותר ומהנשאר חציו ויותר אחד ומהנשאר חציו ויותר אחד ונשאר אחד כמה היה המספר הראשון
|}
:![]() |
Contents
[hide]Find a Perfect Number
[Expand]perfect number
Find One Number
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[Expand]![\scriptstyle\left[a-\left(\frac{2}{3}\sdot a\right)\right]^2=20](/mediawiki/images/math/0/2/0/020aa7d4628e7b55eaa289ac0c2211b9.png)
![\scriptstyle\left[a-\left(\frac{2}{3}\sdot a\right)\right]^2=20](/mediawiki/images/math/0/2/0/020aa7d4628e7b55eaa289ac0c2211b9.png)
[Expand]![\scriptstyle\left[a\sdot\left(\frac{2}{3}\sdot a\right)\right]^2=36](/mediawiki/images/math/4/4/d/44d26474e128ec5582fe301dd2b9863a.png)
![\scriptstyle\left[a\sdot\left(\frac{2}{3}\sdot a\right)\right]^2=36](/mediawiki/images/math/4/4/d/44d26474e128ec5582fe301dd2b9863a.png)
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Find Two Numbers
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b=2a
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a:b=2:3
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[Expand]![\scriptstyle\begin{cases}\scriptstyle a:b=2:3\\\scriptstyle3a+4b=\sqrt[3]{216}\end{cases}](/mediawiki/images/math/3/7/c/37c574e931d2b293ce8e7c05872dd409.png)
![\scriptstyle\begin{cases}\scriptstyle a:b=2:3\\\scriptstyle3a+4b=\sqrt[3]{216}\end{cases}](/mediawiki/images/math/3/7/c/37c574e931d2b293ce8e7c05872dd409.png)
a:b=3:4
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[Expand]![\scriptstyle\begin{cases}\scriptstyle a:b=3:4\\\scriptstyle\sqrt[3]{2a+3b}=8\end{cases}](/mediawiki/images/math/f/d/f/fdfeea3918f71a57781b72d247caef5c.png)
![\scriptstyle\begin{cases}\scriptstyle a:b=3:4\\\scriptstyle\sqrt[3]{2a+3b}=8\end{cases}](/mediawiki/images/math/f/d/f/fdfeea3918f71a57781b72d247caef5c.png)
a:b=4:5
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a:b=3:5
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[Expand]![\scriptstyle\begin{cases}\scriptstyle a:b=3:5\\\scriptstyle\left[\left(a\sdot\sqrt{a}\right)+\left(b\sdot\sqrt{b}\right)\right]\sdot\sqrt{8}=100\end{cases}](/mediawiki/images/math/7/1/1/71187e61ee927d7bba48ce232ff213cc.png)
![\scriptstyle\begin{cases}\scriptstyle a:b=3:5\\\scriptstyle\left[\left(a\sdot\sqrt{a}\right)+\left(b\sdot\sqrt{b}\right)\right]\sdot\sqrt{8}=100\end{cases}](/mediawiki/images/math/7/1/1/71187e61ee927d7bba48ce232ff213cc.png)
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[Expand]![\scriptstyle\begin{cases}\scriptstyle a:b=3:5\\\scriptstyle a\sdot b=\sqrt[3]{729}\end{cases}](/mediawiki/images/math/0/5/a/05a756d12f1bd790b4653042daf26458.png)
![\scriptstyle\begin{cases}\scriptstyle a:b=3:5\\\scriptstyle a\sdot b=\sqrt[3]{729}\end{cases}](/mediawiki/images/math/0/5/a/05a756d12f1bd790b4653042daf26458.png)
a:b=2:5
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a:b=1:4
[Expand]![\scriptstyle\begin{cases}\scriptstyle a:b=1:4\\\scriptstyle\left(a\sdot b\right)\sdot a=\sqrt[3]{216}\end{cases}](/mediawiki/images/math/1/7/1/171ce646462d735ef90bd02638d35efb.png)
![\scriptstyle\begin{cases}\scriptstyle a:b=1:4\\\scriptstyle\left(a\sdot b\right)\sdot a=\sqrt[3]{216}\end{cases}](/mediawiki/images/math/1/7/1/171ce646462d735ef90bd02638d35efb.png)
a:b=1:3
[Expand]![\scriptstyle\begin{cases}\scriptstyle a:b=1:3\\\scriptstyle\sqrt[3]{a}\sdot\sqrt[3]{b}=100\end{cases}](/mediawiki/images/math/6/b/6/6b684d922156985988350c4b2a4c248d.png)
![\scriptstyle\begin{cases}\scriptstyle a:b=1:3\\\scriptstyle\sqrt[3]{a}\sdot\sqrt[3]{b}=100\end{cases}](/mediawiki/images/math/6/b/6/6b684d922156985988350c4b2a4c248d.png)
a:b=5:7
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Find Three Numbers
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Find Six Numbers
[Expand]six proportional numbers