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3 years ago

A girl found dress fo £65.50 and there was an 15% sale on

Mathematics

2 answers:

Leno4ka [110]3 years ago

5 0

All you have to do is subtract 65.50-15% with equals to $55

Alika [10]3 years ago

4 0

Answer: $65.50 - 15% = 55.675

Step-by-step explanation:

Conversion a decimal number to a fraction: 65.50 = 655

= 131

Conversion a decimal number to a fraction: 9.825 = 9825

1000

= 393

Subtract: 65.5 - 9.825 = 131

- 393

= 131 · 20

2 · 20

- 393

= 2620

- 393

= 2620 - 393

= 2227

The common denominator you can calculate as the least common multiple of the both denominators - LCM(2, 40) = 40

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2 years ago

Mai and Tyler work on the equation 2/5b+1=-11 together. Mais soulution is b=-25 and Tyler’s is b=-28. Here is their work. Do you

Anika [276]

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No I don't agree with their solution; both their answers are wrong.

Correct answer is $b=-30$ .

Step-by-step explanation:

Given:

$\frac{2}{5}b+1=-11$

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According to Mai $b = -25$ and According to Tyler $b = -28$

Now we need to find which of them is correct.

So we will solve the given equation we get;

$\frac{2}{5}b+1=-11$

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$\frac{2}{5}b+1-1=-11-1\\\\\frac{2}{5}b =-12$

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