3 years ago

A shirt is on sale for $30. It was originally $40 What is the percent of the decrease?

Mathematics

1 answer:

SpyIntel [72]3 years ago

4 0

Answer:

25% percent

Step-by-step explanation:

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F(x) = 2x3 + 732 – 4x - 5<br> g(x) = 3x – 2<br> Find ( f - g)(x).

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2 years ago

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37. The sum of first three terms in an arithmetic progression is 24 and the sum of their squares is 224. Find the first three te

Airida [17]

Answer:

12, 8, and 4

Step-by-step explanation:

Given

a + d + a + a - d = 24

3a = 24 ⇒ [ a = 8 ]

and (a + d)² + a² + (a - d)² = 224

3a² + 2d² = 224

2d² = 224 - 192 = 32

d² = 16

[ d = ±4 ]

∴ The first three terms to A.P are

a + d = 8 + 4 = 12

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2 years ago

4. = 38 -8(n-1), n=1, 2, 3...

stepladder [879]

Answer:

$38-8\left(n-1\right),\:n=123:\quad -938$

$\mathrm{For}\:38-8\left(n-1\right)\:\mathrm{substitute}\:n\space\mathrm{\:with\:}\space123$

$38-8(123-1)= -938$

$-938$

Step-by-step explanation:

5 0

2 years ago

A shirt is on sale for $30. It was originally $40 What is the percent of the decrease?​

A shirt is on sale for $30. It was originally $40 What is the percent of the decrease?