最新の問題
The problem describes a company's electricity pricing for non-extreme weather months. The pricing st...
Word ProblemLinear EquationsPricingCalculation
2025/4/18
$x = \frac{1}{\sqrt{7} + \sqrt{5}}$, $y = \frac{1}{\sqrt{7} - \sqrt{5}}$ のとき、以下の式の値を求めよ。 (1) $x+...
式の計算有理化平方根
2025/4/18
The problem describes a piecewise function for electricity charges. For usage up to 1200 kWh, the ch...
Piecewise FunctionsLinear EquationsWord ProblemElectricity ChargesUnit Conversion
2025/4/18
The problem requires us to write a piecewise function that represents the monthly charge for electri...
Piecewise FunctionsLinear EquationsModeling
2025/4/18
問題文は、応用例題3(1)を解く際に、「6個の数字から4個を取って並べる順列から、4桁の整数にならないもの（先頭が0になるものなど）を除く」という考え方で解いてみよう、と述べています。問題文だけでは、...
順列場合の数組み合わせ整数
2025/4/18
The problem asks to convert the percentage 46% into a fraction in simplest form.
PercentagesFractionsSimplification
2025/4/18
The problem asks to find the piecewise function that represents the given graph. The graph consists ...
Piecewise FunctionsLinear EquationsCoordinate GeometrySlopePoint-Slope Form
2025/4/18
(1) 7人の生徒から3人を選んで1列に並べるときの並べ方の総数を求めます。 (2) 1から9までの9個の数字から異なる4個を選んで作る4桁の整数の総数を求めます。
順列場合の数組み合わせ
2025/4/18
The problem asks to represent 42% as a fraction in simplest form. The decimal representation is give...
FractionsPercentagesSimplificationGreatest Common Divisor (GCD)
2025/4/18
The problem asks us to express $44\%$ in three ways: visually by shading a grid, as a decimal, and a...
PercentagesFractionsSimplificationGreatest Common Divisor (GCD)
2025/4/18