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Leni [432]
3 years ago
10

An airplane has a total of 152 seats. the number of coach class seats is 5 more than six times the number of first class seats.

how many of each type of seat are there on the plane
Mathematics
1 answer:
horsena [70]3 years ago
8 0

Solution: Find the relationship between the coach class seat and the first class seat. Then solve for the unknown.

First class seat = x

Coach class seat = 6x + 5

x + 6x + 5 = 152

7x = 147

x = 21 <======== number of first class seats

6x + 5 = 6 x 21 + 5 = 131 <======== number of coach class seats

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Find the first three terms of the series represented by the formula 3(- 2)(n - 1).
enyata [817]

Answer:

0, - 6, - 12

Step-by-step explanation:

To find the first 3 terms, substitute n = 1, 2, 3 into the formula

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a₂ = 3(- 2)(2 - 1) = 3 × - 2 × 1 = - 6

a₃ = 3(- 2)(3 - 1) = 3 × - 2 × 2 = - 12

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8 0
3 years ago
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soldi70 [24.7K]
Your equation is a circle where the center is the origin (0, 0) and the radius is 5. With the translation, the new center is (- 7, - 2). Radius stays the same. 

Your new equation is:

(x + 7)² + (y + 2)² = 25
4 0
2 years ago
Please answer this correctly
Firdavs [7]

Answer:

Simple:

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Step-by-step explanation:

5 0
3 years ago
PLS HELP ME!!!!!! <br> 5w ≥ –6w + 11
vampirchik [111]

Answer:

w ≥ 1

Step-by-step explanation:

Given

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5 0
2 years ago
Please show your work! I’ll mark you brainlist!
melamori03 [73]

Answer:

105 feet or inches^2

Step-by-step explanation:

First we find the surface area of the base, (or the square.)

That is 25.

Next we find the areas of the triangle which is: \frac{1} {2} base×height

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That is 80.

Finally, we add both surface area to find the total surface area.

That is 80 + 25 = 105

Hope that helped!

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3 years ago
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