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2 years ago

7

James found a pair of shoes he wanted at two stores. At store A they are $35 and he had a 20% off coupon. At store B they were $

40 and he had a 30% off coupon. Which would be the better deal and by how much?

1 answer:

Oxana [17]2 years ago

7 0

Answer: They cost the same amount.

Step-by-step explanation:

35(0.20)=7

35-7=28

40(0.30)=12

40-12=28

28=28

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If you want to buy an item in a store that costs $9.50 and is on sale for 25% off, then how much would the item actually cost yo

eduard

Answer:

<em>See below.</em>

Step-by-step explanation:

Divide the percentage to get decimal form.

$\frac{25}{100} =.25$

Multiply the total by .25.

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Round to the nearest cent, which would be $2.38$ .

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Ratios 24 dollars for 9 books how much is worth one book

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In ΔJKL, k = 9.6 cm, l = 2.7 cm and ∠J=43°. Find ∠L, to the nearest 10th of a degree.

Bogdan [553]

Answer:

L = 10.64°

Step-by-step explanation:

From the given information:

In triangle JKL;

line k = 9.6 cm

line l = 2.7 cm; &

angle J = 43°

we are to find angle L = ???

We can use the sine rule to determine angle L:

i.e

$\dfrac{j}{SIn \ J} = \dfrac{l}{ SIn \ L}$

Using Pythagoras rule to find j

i,e

j² = k² + l²

j² = 9.6²+ 2.7²

j² = 92.16 + 7.29

j² = 99.45

$j = \sqrt{99.45}$

j = 9.97

∴

$\dfrac{9.97}{Sin \ 43} = \dfrac{2.7}{ Sin \ L}$

${9.97 \times Sin (L ) = (2.7 \times Sin \ 43)$

$= Sin \ L = \dfrac{ (2.7 \times Sin \ 43)}{9.97 } \\ \\ = Sin \ L = \dfrac{ (2.7 \times 0.6819)}{9.97 } \\ \\ = Sin \ L = 0.18466 \\ \\ L = Sin^{-1} (0.18466) \\ \\ L = 10.64 ^0$

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