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Solve the equation (2x-4)/2 + (6x+1)/3 = (16x+10)/12.

To solve this equation for x we must first make sure there is a common denominator across the whole equation. In this case as 2 and 3 are both factors of 12, meaning 12 can be divided by them to generate ano...
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Answered by Steven D. • Maths tutor
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Global temperatures are expected to increase by 0.3-4.8 degrees C by 2100. Name 3 ways this will effect the physical environment.

Any 3 of: Melting ice Melting ice causes sea levels to rise, which could flood coastal habitats forever, losing the land and associated biodiversity.Changes to the way sea ice changes through the year is aff...
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Answered by Ella D. • Geography tutor
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A rectangle has length 3x+6 and width 2x-5. The perimeter of the rectangle is 22cm. What is the value of x?

The perimeter of the rectangle can be found using 3x+6+3x+6+2x-5+2x-5=10x+2We know from the question the perimeter equals 22cm.10x+2=22We can subtract 2 from both sides10x=20Divide through by 10 and we get x...
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Answered by Georgina P. • Maths tutor
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Salika travels to school by train every day. The probability that her train will be late on any day is 0.3. If salika is late on 4 consecutive days she gets a detention. what is the probability she will get a detention during a week?

we would draw a tree diagram to show this. 4 consecutive days means everyday except friday, or everyday except monday. this would be 2(0.3x0.3x0.3x0.3x0.7)
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Answered by Emma C. • Maths tutor
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Explain two causes of a shift of a supply curve to the right.

One cause of a shift in the supply curve to the right could be a decrease in costs of production. If a firm has lower costs of production, such as labour, it will be able to supply more of a product at any g...
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Answered by Fred W. • Economics tutor
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