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3 years ago

Mathematics of inequality

Mathematics

1 answer:

Lady_Fox [76]3 years ago

8 0

Answer:

(-3x²+5x-2)-2(x²-2x-1)

-3x²+5x-2-2x²+2x+2

-5x²+7x

b = 7

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What is the simplest form of Negative 0.14 in a mixed number

Kazeer [188]

0.14 = 14/100 = 7/50

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3 years ago

What is the cost of each item? What is the subtotal? What is the tax? What is the total paid? Shoes: $49.99 (normally) they are

prisoha [69]

Answer:

Cost of shoes = $37.4925

Cost of jacket = $92.4533

Tax = $9.81

Total paid = $144.2458

Step-by-step explanation:

Normal price of shoes = $49.99

Discount = 25%

Discounted price:

$\$49.99 - \$49.99\times \dfrac{25}{100} = \$37.4925$

Normal price of jacket = $137.99

Discount = 33%

Discounted price:

$\$137.99 - \$137.99\times \dfrac{33}{100} = \$92.4533$

Price of pack of cookies = $4.49

No discount on cookies as per question statement.

Total amount without tax = $37.4925 + $92.4533 + $4.49 = $134.4358

Sales Tax = 7.3% of total amount without tax = 7.3% $\times$ $134.4358 = $9.81

Total paid = $134.4358 + $9.81 = <em>$144.2458</em>

4 0

3 years ago

7x2+3[81-(4x6)]<br> Simplify

4vir4ik [10]

P E M D A S

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3 years ago

Read 2 more answers

Is 5.3 repeating rational

Goshia [24]

Repeating decimals are considered rational numbers because they can be represented as a ratio of two integers. If a number is terminating or repeating, it must be rational if a decimal is both non terminating and non repeating, the number is irrational.

So yes.

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4 years ago

I don’t know it can someone help me

tatiyna

Answer:

Step-by-step explanation:

supplementary angles: 180-85 = 95

95 = 5x-20 ( i forgot the name of the rule, something relating to same side interior angles i think)

115 = 5x

23= x

hope that helped

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3 years ago