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Nutka1998 [239]

3 years ago

8

elizabeth and success buy books from 2 different book shop, elizabeth bought 4 books for £28, sucess bought 7 book for £63 who h

ad a better deal

1 answer:

earnstyle [38]3 years ago

7 0

Answer:

Elizabeth got the better deal

Step-by-step explanation:

Elizabeth bought 4 books for £28 = £28/4 = £7 per book

Success bought 7 books for £63 = £63/7 = £9 per book

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Y is directly related to x and y is 81 when x is 27 the constant of.variation is

suter [353]

Answer:

The constant of variation is 3

Step-by-step explanation:

Given.

$y=81$

$x=27$

And y is directly related to x

$y$ ∝ $x$

Here k is constant of variation

$y=kx$

$k=\frac{y}{x}$ --------------(1)

Put the $y$ and $x$ value in equation 1.

$k=\frac{81}{27}$

$k=3$

So, the constant of variation is 3.

6 0

2 years ago

Simplify: 8^2 + 9(12 / 3*2) -7

Naily [24]

Answer:

357 / 2

Step-by-step explanation:

your answer would have been 178.5 but just a reminder always do whats in the exponets

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3 years ago

Y=-2+4 ¿Cuál es la intersección y de la línea con la ecuación?

Orlov [11]

y = -2x + 4

intersección y es 4

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2 years ago

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kap26 [50]

Answer:2/16

Step-by-step explanation:

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2 years ago

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