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64% of an audience are female. Work out the ratio females : males Give your answer in its simplest form.

64% are female. This 64% out of 100%.

36% are male

So the ratio is 64 : 36 or 32 : 18

Can then be simplified to 16 : 9

Answered by Jordan Q. • Maths tutor

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When plant cells are placed in salt solution their appearance is different to when they are placed in distilled water. Explain these changes.

When the plant cells are placed in the salt solution, there is a higher concentration of water molecules in the cell and a lower concentration of water in the salt solution and thus a concentration gradie...

Answered by Christopher G. • Biology tutor

69508 Views

A cuboid of height 5 cm has a base of side 'a' cm. The longest diagonal of the cuboid is 'L' cm. Show that 'a' = SQRT[ (L^2 - 25)/2]

A cuboid is made of squares and rectangles, with the diagonal 'L' connecting opposite corners of the 2 square faces. As the cuboids corners are all right angles, all the diagonals form right angled triang...

Answered by Joshua P. • Maths tutor

4951 Views

Energy is obtained from both aerobic and anaerobic respiration during exercise. Give three differences between aerobic and anaerobic respiration.

aerobic respiration uses oxygen for eaxaplme a relaxed human will be inhaling oxygen and their bodies using it to break down glucose in their cells. glucose + oxygen = carbon dioxide + water

Howev...

Answered by Andrea G. • Biology tutor

7126 Views