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KS3

This rectangle is twice as long as it is wide. The perimeter of the rectangle is 30cm. What is the area?

50cm²

Answered by Sammy B. • Maths tutor

2818 Views

Write the missing numbers on the lines.

76 + 84 = 16036+54 = 90

Answered by Sammy B. • Maths tutor

2108 Views

What is the Pythagoras’ theorem and how can it be used to work out the distance between two points?

Pythagoras’ theorem is the formula used to calculate any side of a right-angled triangle. The concept is that the square of the hypotenuse is equal to the sum of the squares on the other two sides. Assign...

Answered by Samuel W. • Maths tutor

2536 Views

Find the value of 'a' in the equation: 5a + 12 = 37

First step is to take away 12 from both sides of the equation:5a + 12 = 37 (-12) 5a = 25 Second step is to then divide both sides by 5:5a = 25(÷5) Which gives you the final answer:a = 5

Answered by Meghan B. • Maths tutor

2777 Views

Expand and simplify: 4(2x − 3) − 2(x − 5)

4(2x - 3) - 2(x - 5) [Remember that a negative multiplied by a negative makes a positive]
8x - 12 - 2x +10
6x - 2 [Check: can I simplify further?
2(3x -...

Answered by Rachel C. • Maths tutor

9240 Views