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3 years ago

Which is the best buy?12 tins of fish at K7.80 or 6 tins of fish at K4.20?

Mathematics

1 answer:

sweet-ann [11.9K]3 years ago

8 0

Divide price by quantity of each and compare:

7.80 / 12 = o.65 per tin

4.20 / 6 = 0.70 per tin

12 for 7.80 is less per tin, so is the Best Buy.

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I need help I can’t figure it out

dusya [7]

Answer:

$\large\boxed{\dfrac{41p}{70q^4(r-9)^2}}$

Step-by-step explanation:

$\dfrac{2p^4}{5q^5(r-9)^3}\cdot\dfrac{41q(r-9)}{28p^3}\\\\=\dfrac{2\!\!\!\!\diagup^1\cdot41}{5\cdot28\!\!\!\!\!\diagup_{14}}\cdot\dfrac{q\!\!\!\!\diagup}{q^{5\!\!\!\!\diagup^4}}\cdot\dfrac{(r\!\!\!\!\!\!{--}-9)\!\!\!\!\!\!{--}}{(r-9)^{3\!\!\!\!\diagup^2}}\cdot\dfrac{p^{4\!\!\!\!\diagup}}{p^3\!\!\!\!\!\!\diagup}\\\\=\dfrac{41}{70}\cdot\dfrac{1}{q^4}\cdot\dfrac{1}{(r-9)^2}\cdot\dfrac{p}{1}\\\\=\dfrac{41p}{70q^4(r-9)^2}$

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3 years ago

What is the simplified from of 4x^2-25 over 2x-5?

stealth61 [152]

We can factor 4x^2-25 into (2x +5) * (2x -5) and
dividing by (2x -5)
yields (2x +5)

That neatened up pretty nicely.

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3 years ago

PLEASE HELP ME QUICKLY!!!!!

Gwar [14]

Y=2/5+3; u gotta find two points, count the rise over run and find the y-intercept

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3 years ago

Which numbers below are integers but not natural numbers? 1, - 5.41,3root12, 0, -3, -9/7,23

m_a_m_a [10]

Answer:

0 and -3

Step-by-step explanation:

Natural numbers are all whole numbers from 1 to infinity. i.e

1, 2, 3, 4 . . .

These numbers do not include 0.

Integers are all whole numbers (positive and negative) including 0. i.e

. . ., -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, . . .

These numbers are all natural numbers including their negative counterparts (i.e negatives of the natural numbers) and also 0.

So from the options in the question:

1 is a natural number as well as an integer

-5.41 is not a natural number neither is it an integer.

3 root 12 (written as $3\sqrt{12}$ ) is neither a natural nor an integer number.

0 is an integer but not a natural number

-3 is an integer but not a natural number

-9/7 is neither a natural nor an integer number.

23 is a natural number as well as an integer

Therefore, 0 and -3 are integers but not natural numbers

8 0

3 years ago

HELP. Pleaseee. I have no idea what this means.

Vilka [71]

Answer:

Step-by-step explanation:

roots are the intercepts at the x axis I believe

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3 years ago

Which is the best buy?12 tins of fish at K7.80 or 6 tins of fish at K4.20?​

Which is the best buy?12 tins of fish at K7.80 or 6 tins of fish at K4.20?