Whakaoti i te 0.6*0.6xgeq4*5

$$0.6 \times 0.6x \geq 4 \times 5$$

Whakaoti mō x

$$x\geq \frac{500}{9}$$

Ngā Upane Otinga

Whakareatia te 0.6 ki te 0.6, ka 0.36.

$$0.36x\geq 4\times 5$$

Whakareatia te 4 ki te 5, ka 20.

$$0.36x\geq 20$$

Whakawehea ngā taha e rua ki te 0.36. I te mea he tōrunga te 0.36, kāore e huri te ahunga koreōrite.

$$x\geq \frac{20}{0.36}$$

Whakarohaina te \frac{20}{0.36} mā te whakarea i te taurunga me te tauraro ki te 100.

$$x\geq \frac{2000}{36}$$

Whakahekea te hautanga \frac{2000}{36} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$x\geq \frac{500}{9}$$