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2 years ago

PLSSS HELPPPPP

Mathematics

2 answers:

BabaBlast [244]2 years ago

5 0

Answer:

a: 1

b: 0

d:2

e:3

Step-by-step explanation:

Since you already know that C is -1, you can add or subtract along the numberline by ones to get the values of each letter

Komok [63]2 years ago

3 0

Answer: B is 0 A is 1 D 2 E 3

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Let the first number be x and the second be y.

So:

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And:

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Substitute $Average = (1 - 30\%) * x$ in $Average = \frac{x + y}{2}$

$\frac{x + y}{2} = (1 - 30\%) * x$

$\frac{x + y}{2} = (1 - 0.30) * x$

$\frac{x + y}{2} = 0.70 * x$

$\frac{x + y}{2} = 0.70x$

Cross multiply

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$x + y = 1.40x$

Collect like terms

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$0.40x = y$

Make x the subject

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$x = 2.50y$

So, the average is:

$Average = (1 - 30\%) * x$

$Average = (1 - 30\%) * 2.50y$

$Average =0.70 * 2.50y$

$Average =1.75y$

Rewrite as:

$Average =(1 + 0.75)y$

Express as percentage

$Average =(1 + 75\%)y$

This means that the average is 75% bigger than the second number

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