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To find the differen...

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Solve the simultaneous equations: 1) 4x - 2y = 28, 2) 4y - 3x = -36.

Before starting, look whether either equation has common factors. Equation 1 does common factor 2, so divide it by 2 both sides to get 1) 2x - y = 14. Rearrange 1) to get one unknown in terms of the other...

Answered by Aaron H. • Maths tutor

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Tommy, Anna and Jacob all have 40 sweets. they decide to split the sweets between each other in the ratio 1:4:5. Calculate how many sweets each get, rounding down your answer where necessary.

1+4+5=10. 40/10 = 4. 1 x 4= 4 = 4 sweets for Tommy. 4 x 4 = 16 sweets for Anna. 5 x 4 = 20 sweets for Jacob

Answered by Praveen M. • Maths tutor

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Name how the structure of the three main blood vessels are adapted to their function.

A) Arteries - Arteries carry blood away from the heart at high blood pressure. Therefore they have a thick muscle layer and elastic tissue in their walls to cope with and maintain the high blood pressure ...

Answered by Christa E. • Biology tutor

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Explain 2 limiting factors of photosynthesis and how can they be removed

There are many limiting factors of photosynthesis (light, temperature, water, carbon dioxide) but we'll focus on light and temperature: Chlorophyll absorbs light at certain wavelengths and light needs to ...

Answered by Nikita S. • Biology tutor

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