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1 year ago

5

Sean began jogging to live a healthier lifestyle. On his first run, he ran one-half mile. He increased his workouts by adding tw

o miles a month to his run. He wrote the equation f(x)= 0.5 + 2x to model his progress

2 answers:

Lerok [7]1 year ago

7 0

<span> The variable x represents the number of </span>months he runs.

Oliga [24]1 year ago

4 0

Answer:

b. months he runs :)

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Answer:

(1/2, 5)

Step-by-step explanation:

8x + 7y = 39

-2(4x - 14y = -68)

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add the two equations together

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1 year ago

Which correctly applies the distributive property to show an equivalent expression to (–2.1)(3.4)?

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1 year ago

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1 year ago

25xy=225 convert to polar form

bixtya [17]

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1 year ago

A customer at a restaurant leaves $80 on the table to pay for the food, a 15% tip, and 8% sales tax. If both tip and sales tax w

Romashka-Z-Leto [24]

Answer:

<em>$65.04</em>

<em></em>

Step-by-step explanation:

Given:

Total amount left by the customer on table = $80

It contains cost of the food + 15% tip + 8% sales tax.

Sales tax and tip are calculated from the cost of food.

To find:

Cost of the food = ?

Solution:

Let the cost of food = $ $x$

As per given question statement:

Tip = 15% of $x$

Sales Tax = 8% of $x$

Money left on table = Cost of food + Tip + Sales tax

$80 = $x$ + 15% of $x$ + 8% of $x$

Now, let us solve the equation:

$\$80 = x + 15\%\ of\ x + 8\%\ of\ x\\\Rightarrow 80 = x + \dfrac{15}{100} \times x + \dfrac{8}{100} \times x\\\Rightarrow 80 = \dfrac{100x + 15\times x + 8\times x}{100}\\\Rightarrow 80 = \dfrac{123x}{100}\\\Rightarrow 80 \times 100= 123x\\\Rightarrow x = \dfrac{8000}{123}\\\Rightarrow \bold{x = \$65.04}$

Therefore, the cost of food, rounded off to nearest cent is <em>$65.04.</em>

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2 years ago