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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 whic...

Answered by Mariam B. • Biology tutor

4293 Views

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...

Answered by Alicia T. • Maths tutor

4135 Views

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 ...

Answered by Daniel B. • German tutor

1974 Views

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 nee...

Answered by Phoebe R. • Maths tutor

5417 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; i...

Answered by Daniel B. • French tutor

2714 Views