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Express 126 as a product of its prime factors

(2)(63)-->(2)(3)(21)-->(2)(3)(3)(7)*(1)

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5 tins of soup have a total weight of 1750 grams. 4 tins of soup and 3 packets of soup have a total weight of 1490 grams. Work out the total weight of 3 tins of soup and 2 packets of soup.

Step 1 - Find the weight of 1 tin of soup: 1750 ÷ 5 = 350 Step 2 - Use this number (350) to find the weight of 1 packet of soup: (4x350) + 3P = 1490, 3P = 90, P=30Step 3 - Work out weight of 4 tins of sou...

Answered by Maddy C. • Maths tutor

11347 Views

Solving quadratic equations using the factorisation method.

The Form of a quadratic equation where a ≠ 0ax²+ bx + c = 0In order to solve we need to create one term made up of factors.One or more of these factors must equal zero.Questions we will work...

Answered by Clem E. • Maths tutor

3595 Views

Solve (x/4)-(2x/x+2)=1. Give your solutions to 2 decimal places.

Re-arrange to x^2-10x-8=0Using quadratic formula obtains two values, x=10.74 and x= -0.74

Answered by Will H. • Maths tutor

2722 Views

A curve with equation y=f(x) passes through point P at (4,8). Given that f'(x)=9x^(1/2)/4+5/2x^(1/2)-4 find f(X).

To find f(x) using its derivative, first integrate f'(x) with respect to x using the 'add one to the power and divide by the new power' technique remembering to add the constant c. To make this easier, tu...

Answered by Em C. • Maths tutor

3515 Views