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Find the equation of the straight line which passes through the points (5, 0) and (6, 4).

We can use the general equation of a straight line to tackle this question: y=mx+c (m is the gradient and c is the y-intercept).(Note: The points are in the form (x, y).) First, we will determine the gradien...
CM
Answered by Chloe M. • Maths tutor
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x : y = 11 : 3 x + y = 140 Find x and y

x = 110y = 30From x: y = 11:3 we can rearrange to find x = 11y/3 or y = 3x/11We can then substitute into x + y = 140 to get 11y/3 + y = 14y/3 = 140 y/3 = 10 y = 30once we have y, we can find that x + 30 = 14...
JO
Answered by Jake O. • Maths tutor
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Identify two methods of external growth a company could use?

a company could either perform a merger or a takeover allowing them gain complete shares in another company therefore overtaking it as well as becoming one.
EO
2138 Views

Make x the subject of the equation: 2x+7=5x

Making x the subject means we must rearrange the equation to get it into the form 'x='First, we need to get all the x's on one side; to do so, we will subtract 2x from each side to give 2x+7-2x=5x-2x. This s...
SM
Answered by Safiya M. • Maths tutor
4215 Views

The coefficient of the x^3 term in the expansion of (3x + a)^4 is 216. Find the value of a.

From the binomial theorem we know that the x^3 term in the expansion of the above expression must satisfy, 4C3 * (3x)^3 * a = 216x^3. Hence, after multiplying out we must have, 108a * x^3 = 216x^3 and theref...
AB
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