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Explain how the human circulatory system is adapted to: 1. supply oxygen to the tissues 2. remove waste products from tissues.

The human circulatory system has dual / double system which means that it has higher blood pressure and a greater flow of blood to the tissues. The heart is made of specialised (cardiac) muscle cells which h...
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Answered by Mariam B. • Biology tutor
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Nadia has £5 to buy pencils and rulers. Pencils are 8p each. Rulers are 30p each. She says “I will buy 15 pencils. Then I will buy as many rulers as possible. With my change I will buy more pencils.” How many pencils and how many rulers does she buy?

15 x 0.08 = £1.20 which means Nadia has £5 - £1.20 = £3.80 remaining£3.80/0.3 = 12.6 recurring so 12 whole rulers can be bought 12 x 0.3 = £3.60 spent on rulers£3.80 - £3.60 = £0.20 change remaining £0.20/0....
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Answered by Alicia T. • Maths tutor
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Conjugate the following verbs: haben, sein, werden.

ich habe; du hast; er/sie/es/man hat; wir haben; ihr habt; sie/Sie haben | ich bin; du bist; er/sie/es/man ist; wir sind; ihr seid; sie/Sie sind | ich werde; du wirst; er/sie/es/man wird; wir werden; ihr wer...
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Answered by Daniel B. • German tutor
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Solve the equation 3x^2 +17x -6 = 0 without using a calculator

In order to solve this equation without using a calculator we will need to factorise. The first step in factorising this equation is to rewrite our 17x as two separate terms. The coefficients of these need t...
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Answered by Phoebe R. • Maths tutor
5627 Views

Conjugate the following verbs: aller, faire, avoir, être.

je vais; tu vas; il/elle/on va; nous allons; vous allez; ils/elles vont | je fais; tu fais; il/elle/on fait; nous faisons; vous faites; ils/elles font | j'ai; tu as; il/elle/on a; nous avons; vous avez; ils/...
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Answered by Daniel B. • French tutor
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