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Express 126 as a product of its prime factors

(2) (63)-->(2) (3) (21)-->(2) (3) (3) (7)*(1)
TC
Answered by Taner C. • Maths tutor
6216 Views

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 soup a...
MC
Answered by Maddy C. • Maths tutor
13275 Views

Solving quadratic equations using the factorisation method.

The Form of a quadratic equation where a ≠ 0ax 2 + 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 through: 10x ...
CE
Answered by Clem E. • Maths tutor
4392 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
WH
Answered by Will H. • Maths tutor
3400 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, turn ...
EC
Answered by Em C. • Maths tutor
4234 Views