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2 years ago

14

hmmm. i’ve been stuck for a while on this question. i am NOT cheating on a test, this is a routine practice assignment that isn’

t graded. i don’t know how to do it :/

1 answer:

S_A_V [24]2 years ago

7 0

Answer:

Well its not A. or D.

Step-by-step explanation:

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By how much is the product of 27 and 13 greater than their sum?

iragen [17]

Well its quite simple...
the product of 27 and 13 is 351 (which is found by multiplying 27 and 13)
and the sum of 27 and 13 is 40 (which is found by adding 27 and 13 together)

therefore to work out the difference you have to do:
351 - 40 which equals 311

so 311 is your answer

8 0

2 years ago

Read 2 more answers

1.What is the ratio of v to v max expressed as a percentage when [s] = 30 km

Helga [31]

Answer:

(a)96.77%

(b)3.23%

Step-by-step explanation:

Starting with the Michaelis-Menten equation which is used to model biochemical reactions:

Dividing both sides by $V_{\max }}$

$\dfrac{v}{V_{max}}=\dfrac{[S]}{K_M + [S]}$

Where: $V_{\max }} =$ maximum rate achieved by the system

$K_{\mathrm {M} }}$ =The Michaelis constant

${\displaystyle {\ce {[S]}}}=$ Substrate concentration

(a) When $[S]=30K_M$

$\dfrac{v}{V_{max}}=\dfrac{[S]}{K_M + [S]}\\\dfrac{v}{V_{max}}=\dfrac{30K_M}{K_M + 30K_M}\\\dfrac{v}{V_{max}}=\dfrac{30}{1 + 30}\\\dfrac{v}{V_{max}}=\dfrac{30}{31}\\$Expressed as a percentage\\\dfrac{v}{V_{max}}=\dfrac{30}{31}X100=96.77\%$

(b)When $K_M=30[S]$

$\dfrac{v}{V_{max}}=\dfrac{[S]}{K_M + [S]}\\\dfrac{v}{V_{max}}=\dfrac{[S]}{30[S] + [S]}\\\\=\dfrac{1[S]}{30[S] + 1[S]}\\=\dfrac{1}{30 + 1}\\\dfrac{v}{V_{max}}=\dfrac{1}{31}\\$Expressed as a percentage\\\dfrac{v}{V_{max}}=\dfrac{1}{31}X100=3.23\%$

8 0

2 years ago

Choose all the equations for which x=3 is a solution

gregori [183]

A and D

A= 3+1=4

D=4*3=12

8 0

3 years ago

Read 2 more answers

What is 383,342 rounded?

solmaris [256]

It could be 400,000 or 383,000

6 0

2 years ago

Factorise p^2 + q^2 +5(p^2 + q^2)

Vinvika [58]

Step-by-step explanation:

p² + q² + 5(p² + q²)

= 1(p² + q²) + 5(p² + q²)

= (1 + 5)(p² + q²)

= 6(p² + q²).

5 0

2 years ago