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Describe the theory of enzyme action.

Enzymes are biological catalysts that speed up the rate of biological reactions. The enzyme active site and the substrate are complimentary in shape. This allows the substrate to bind to the active site of t...
CD
Answered by Catherine D. • Biology tutor
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Solve 7(x-5)=25-3x

Firstly, expand the left hand side of the equation out to produce: [7x-35=25-3x]. Bring all the x's to one side (to form 10x=60). Divide both sides by 10 to find the solution for x [x=60/10]. Therefore, x=6
JJ
Answered by Jenni J. • Maths tutor
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Explain how to conjugate the conditional tense for regular verbs

The conditional tense is formed in two parts. For regular -ir and -er verbs, we use the infinitive as the stem. For regular verbs ending in -re we must first remove the "e" to create the stem. Once...
MJ
Answered by Miranda J. • French tutor
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Factorise (x^2-100) and then solve for x.

When looking at factorising quadratic equations, the first approach should be to identify what is in front of the x term and the value of the c term, with the equation being in the form of y=A(x^2)+Bx+c.So t...
SA
Answered by Syed A. • Maths tutor
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Solve x/2 + 3x/(x+) = 1

(x/2) + 3x/(x+1) = 1x(x+1) + 6x = 2x + 2x 2 + x + 6x - 2x = 2x 2 + 5x - 2 = 0 Using the quadratic formula, x 1 = (-5+(29) 1/2 )/2x 2 = (-5-(29) 1/2 )/2
ED
Answered by Emily D. • Maths tutor
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