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wel
1 year ago
6

Peter Schmidt ordered sandwiches and salads for a luncheon meeting. The sandwiches cost three times as much as a salads. The tot

al bill was $24.92. how much did the salads cost
Mathematics
1 answer:
evablogger [386]1 year ago
3 0

EXPLANATION

Let's see the facts:

$Sandwiches= 3*$Salads

Bill = $24.92

We can represent this in an equation:

Total Bill = Sandwiches + Salads

Let's call to Sandwiches "x" to Salads "y" and to Bill "B"

Then, the equation will be:

B = x+y = (3*y) + y

Applying distributive property:

24.92 = 3y + y

Adding similar terms:

24.92 = 4y

Dividing both sides by 4:

6.23 = y

Switching:

y=6.23

As we know, y variable represent the salads cost, so:

Answer is $6.23.

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Answer:

\displaystyle h'(s) = 64s + 20

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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  4. Multiplication
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Derivative Notation

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Derivative Rule [Product Rule]:                                                                                  \displaystyle \frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)

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\displaystyle h(s) = (-8s - 9)(-4s + 2)

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  2. [Derivative] Basic Power Rule:                                                                       \displaystyle h'(s) = (1 \cdot -8s^{1 - 1} - 0)(-4s + 2) + (-8s - 9)(1 \cdot -4s^{1 - 1} - 0)
  3. [Derivative] Simplify:                                                                                         \displaystyle h'(s) = (-8)(-4s + 2) + (-8s - 9)(-4)
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Unit: Derivatives

Book: College Calculus 10e

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