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1 year ago

Two shops, Lidal and Oldi, sell the same brand of toilet rolls but with different package sizes.

Mathematics

1 answer:

Rina8888 [55]1 year ago

8 0

The price per roll for Lidal and Oldi shop is 0.35 and 0.36 respectively.

Therefore Lidal shop is the best value for money.

Given,

Lidal shop:

8 rolls costs 2.80

∴ one roll costs = 2.80/8

= 0.35

Oldi shop:

9 rolls costs 3.24

∴ one roll costs = 3.24/9

= 0.36

Hence we get the per price for the shops as 0.35 and 0.36

we can see that for lidal shop if per roll it is 0.35 then if a person wants to buy 9 rolls then it will cost him 3.15, whereas in the case of oldi shop the price for 9 rolls is 3.24.Therefore, lidal shop is the best value for money.

Learn more about "Profit and loss" here-

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Answer:

169

Step-by-step explanation:

You need to use a Z-table for this.

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2 years ago

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Question 2(Multiple Choice Worth 1 points) (06.01) Solve 2x + 5y = −13 3x − 4y = −8 (4, 1) (−4, 1) (4, −1) (−4, −1)

dlinn [17]

ANSWER

The solution is
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EXPLANATION

The given equations are:

$2x + 5y = - 13...(1)$

and

$3x - 4y = - 8...(2)$

We multiply equation 1 by 3 to get,

$6x + 15y = - 39...(3)$

We multiply equation 2 also by 2 to get,

$6x - 8y = - 16...(4)$

We subtract equation 4 from equation 3 to get,

$23y = - 23$
This implies that,

$y = - 1$

We put this value of y into any of the equations say equation 2

$3x - 4( - 1) = - 8$
Simplify

$3x + 4 = - 8$
Group like terms
$3x = - 8 - 4$
Simplify,

$3x = - 12$

Divide both sides by 3 to get,

$x = - 4$

Therefore the solution is
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The correct answer is option D.

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3 years ago

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Answer:

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Step-by-step explanation:

35y = mx + c

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1 year ago

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Reptile [31]

6 1/25 is the answer

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2 years ago

What is the coefficient of x2y3 in the expansion of (2x + y)5?

Zigmanuir [339]

Option C:

The coefficient of $x^{2} y^{3}$ is 40.

Solution:

Given expression:

$(2 x+y)^{5}$

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Here $a=2 x, b=y$

Substitute in the binomial formula, we get

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Now to expand the summation, substitute i = 0, 1, 2, 3, 4 and 5.

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