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Alex17521 [72]
3 years ago
12

Only need help with The angle the road makes with horizontal

Mathematics
1 answer:
drek231 [11]3 years ago
8 0
Tan -1 = 13/21
31.7
32degrees
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A shopper’s discount club charges a monthly fee of $15 and sells gasoline for $2.05 per gallon. The gas station across the stree
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Answer:

15 + 2.05 x = 2.35 x

Step-by-step explanation:

Let x be the number of gallons you would have to buy for the two places to be the same.

At the club, there is a monthly fee of $15 that is charged once in a month. They also charge $2.05 per gallon, which is charged every gallon of gas you buy.

We can write an expression: 15 + 2.05 x

At the gas station, they charge $2.35 per gallon with no other fees.

We can also write an expression: 2.35 x

For the prices to be the same, we have 15 + 2.05 x = 2.35 x

If we were to solve, then we have:

(2.35 - 2.05) x = 15

x = 15 / 0.3 = 50 gallons

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3 years ago
Find the arc length of a central angle of 7pi/3 in a circle whose radius is 3 inches.
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\bf \textit{arc's length}\\\\ s=r\theta ~~ \begin{cases} r=radius\\ \theta =angle~in\\ \qquad radians\\ \hrulefill\\ r=3\\ \theta =\frac{7\pi }{3} \end{cases}\implies s=3\cdot \cfrac{7\pi }{3}\implies s=7\pi

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How many variables are in the equation? 7y + 2x + 8 = 29 *
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Y and X AKA 2

Step-by-step explanation:

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20 minus the product of 3 and 5.
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Step-by-step explanation:

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2/3=14/21 and 5/7=15/21 so 14/21+15/21=29/21 or 1 and 8/21
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