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A t-shirt is in the sale section of a store. It has 20% off and the new sale price is £12. What was the original price of the t-shirt?

Original Price x Percentage Multiplier = New Price Percentage Multiplier = (100-20)/100 = 0.8 OP x 0.8 = £12 OP = £12/0.8 = £15
KB
Answered by Katy B. • Maths tutor
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What is Kants kategorical imperative?

Kant's kategorical imperative is a maxim - a rule - which states that all your actions must be such that they could creature the foundation for a law about how everyone ought to act in similar situations. In...
ZR
Answered by Zinet R. • Philosophy tutor
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Outline one study that has investigated stress-related illness and the immune system. In your answer you should refer to what was done and what was found. (4 marks)

One study which investigated into the relationship between stress-related illness and the immune system was carried out by Kiecolt-Glaser et al (1984). They used medical students to look into whether short t...
TS
Answered by Tina S. • Psychology tutor
4246 Views

A ball is projected at an angle b from the horizontal. With initial velocity V the ball leaves the ground at point O and hits the ground at point A. If Vcos(b) = 6u and Vsin(b) = 2.5u, how long does the ball take to travel between O and A.

This is a classic 2-D projectile question. The best way to solve this problem is to split the velocity into its x and y components. In the x-direction a projectile has no forces acting on it (as we neglect a...
TC
Answered by Tristan C. • Maths tutor
8779 Views

What is an isotope?

Each element has a unique number of protons. For example, every carbon atom contains 12 protons. The number of neutrons can differ for each "form" of the same element - this is known as an isotope....
JG
Answered by Joanna G. • Chemistry tutor
4669 Views