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Factorise 15r+10

Step 1) look at the numbers Both 15 and 10 are factors of 5 step 2 ) look at the letters there is only one letter 'r' after the 15 step 3) there is only one possible thing that can be factorised out therefor...
JL
Answered by Judy L. • Maths tutor
10701 Views

How do I solve a simple simultaneous equation?

Simultaneous equations pop up all the time in maths, science, and engineering, so being able to solve them is really useful. Although they can look a bit daunting at first, the same general rules apply to so...
JM
Answered by Joe M. • Maths tutor
5432 Views

Trolley A weighs 5kg and is moving at 15m/s to the right. It collides with a stationary Trolley B, weighing 10kg more than Trolley A. After the collision they move off together. Calulate the velocity that they move off with.

To start with, we should work out all of the quantities we need: Mass of Trolley A: M A = 5kg Mass of Trolley B: B weighs 10kg more than A --> Therefore M B = 10 + 5 = 15kg Mass of Both Trolleys together:...
JD
Answered by Joshua D. • Physics tutor
8251 Views

Describe the four moraine landforms found in glacial environments.

'Moraine' is a term given to pieces of rock transported by a glacier, and can my divided into four different categories. 'Ground Moraine' is a collection of rock dragged underneath a glacier as it moves down...
CB
Answered by Calum B. • Geography tutor
5526 Views

How do you form the imperfect tense in Spanish?

The imperfect tense is used in Spanish to describe something in the past or to talk about something that happened often or habitually, for example going to school every day. It has two different types of end...
DM
Answered by Danielle M. • Spanish tutor
4628 Views