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The problem states that six kilograms of carrots cost $16.80. We need to find the approximate cost o...

Unit PriceDivisionRounding

The air distance between London and Cairo is 3510 km. On a map, this distance is represented by 30 c...

RatioUnit ConversionProportion

We are given a triangle $ABC$ with $C = 96.2^{\circ}$, $b = 11.2$ cm, and $c = 39.4$ cm. We are ask...

TrigonometryLaw of SinesTrianglesAngle CalculationSide Length Calculation

家から1540m離れた図書館へ行くのに、最初は歩き、途中から走って13分で到着した。歩く速さは分速80m、走る速さは分速180mのとき、走った距離を求める。

連立方程式文章問題距離速さ時間

2桁の正の整数がある。十の位の数の3倍と一の位の数の2倍の和は25である。また、十の位の数と一の位の数を入れ替えてできる数は、元の整数より45大きくなる。元の整数を求めなさい。選択肢は28, 54, ...

連立方程式文章問題整数

Solve the first-order linear differential equation $y' - \cot(x)y = \tan(x)$.

Differential EquationsFirst-Order Linear Differential EquationIntegrating FactorCalculusTrigonometry

We need to solve the second-order homogeneous linear differential equation $26y'' - 2y' + y = 0$.

Differential EquationsSecond-Order Differential EquationsHomogeneous Differential EquationsComplex RootsLinear Differential Equations

We are asked to solve the second-order linear non-homogeneous differential equation: $y'' + y' = 4x ...

Differential EquationsSecond-Order Linear Differential EquationsHomogeneous EquationNon-homogeneous EquationCharacteristic EquationParticular SolutionGeneral Solution

We are given a first-order differential equation $(x^2 + 4)y' + xy^2 + x = 0$ with the initial condi...

Differential EquationsFirst-Order Differential EquationsInitial Value ProblemIntegrationSeparable Equations

問題1: あいさんの組の先週の欠席者数が表で与えられています。 (1) 1日平均の欠席者数を求めます。 (2) 欠席者の1日平均人数が先週と同じとすると、20日間で何人が欠席すると考えられるかを求めま...

平均割合計算

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