3 years ago

Would you rather have two 20% discount or a 40% discount?

Mathematics

2 answers:

yuradex [85]3 years ago

6 0

Answer:

Step-by-step 40%explanation:

zysi [14]3 years ago

5 0

Answer:2 20%

Step-by-step explanation: you can use it twice

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BabaBlast [244]

The answer in expanded form?

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3 years ago

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What is the solution to the inequality 0.8x+20<1.2x−40?

LuckyWell [14K]

Answer:x=150

Step-by-step explanation:

Step 1: Subtract 1.2x from both sides.

0.8x+20−1.2x=1.2x−40−1.2x

−0.4x+20=−40

Step 2: Subtract 20 from both sides.

−0.4x+20−20=−40−20

−0.4x=−60

Step 3: Divide both sides by -0.4.

−0.4x

−0.4

−60

−0.4

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3 years ago

Find ( f - g)(x). f (x) = -2x2 - 2x - 3 and g(x) = 3x2 - 4x - 4

Kruka [31]

Answer:

$\large\boxed{(f-g)(x)=-5x^2+2x+1}$

Step-by-step explanation:

$(f-g)(x)=f(x)-g(x)\\\\\text{We have}\ f(x)=-2x^2-2x-3\ \text{and}\ g(x)=3x^2-4x-4.\\\\\text{Substitute:}\\\\(f-g)(x)=(-2x^2-2x-3)-(3x^2-4x-4)\\\\(f-g)(x)=-2x^2-2x-3-3x^2+4x+4\qquad\text{combine like terms}\\\\(f-g)(x)=(-2x^2-3x^2)+(-2x+4x)+(-3+4)\\\\(f-g)(x)=-5x^2+2x+1$

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4 years ago

What is x in the equation 5^{3-2x} = 5^{-x} A) x = 3 B) x = 1 C) x = -1 D) x = -3

Naily [24]

Answer:

The answer is A) x equals 3

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4 years ago

A map scale is 1 cm :50Km.Two cities are 3.8cm apart .How many kilometers is it from on e city to the other

Gennadij [26K]

So what you do is you want to multiply
3.8 × 50=190km

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4 years ago