5.- Marcos corrige una cuartilla en 2 h y Jesús lo realiza e 3 h . Si trabajan juntos, ¿cuánto se tardarian en correg un libro de 60 páginas?

b. \( 8.23 \div 1000 \)

titanium chloride vapour is passed through molten magnesium in an atmosphere of argon the products are allowed to cool to form a solid mixture of titanium and magnesium chloride this mixture is crushed into a powder and then added to water to dissolve the magnesium chloride Write a chemical equation for the reaction between titanium chloride and magnesium.

3. Solve these problems. Show all your working. a. Janet waters her garden three times a week. Last week she used 39 \( \frac{1}{2} \ell, 56 \ell \) and 300 ml and 38000 ml . How much water did Janet use altogether? b. Nomhle has \( 12 \frac{1}{2} \) € of milk and she sells \( 8 \frac{1}{4} \). How much does Nomhle have left over? c. Solly has seven containers and he pours three 250 ml bottles of juice into each. How much juice does Solly need for this? d. Josh has 4 litres of fruit juice to share equally between six friends. How much can each friend have? 4. Round each answer in Question 3 to the nearest litre.

\( \frac{1}{\sin ^{2} x}-1=\frac{1}{\tan ^{2} x} \), com \( \cos x \neq 0 \) e \( \sin x \neq 0 \)

Make \( x \) the subject: 1) \( y=4 x+8-1 \)