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3 years ago

12

Every row consists of 2,3 and 2 seats each. If there are 51 horizontal rows, and 13 seats are empty. How many passengers are on

board?

1 answer:

monitta3 years ago

7 0

Answer:

344

Step-by-step explanation:

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Civil engineer wants to estimate the maximum number of cars that can safely travel on a particular road at a given speed. He ass

pychu [463]

$N(s)= \frac{89s}{14+14( \frac{s}{17})^2 }
\\
\\N'(s)= (\frac{89s}{14+14( \frac{s}{17})^2 } )'= \frac{89\times 14(1+( \frac{s}{17})^2)-89s\times \frac{28}{17} }{14^2(1+( \frac{s}{17})^2)} 
\\
\\N'(s)=0
\\
\\89\times 14(1+( \frac{s}{17})^2)-89s\times \frac{28}{17}=0
\\
\\1+( \frac{s}{17})^2- \frac{2s}{17} =0
\\
\\289+s^2-34s=0
\\
\\s^2-34s+289=0
\\
\\(s-17)^2=0
\\
\\s=17
$

5 0

3 years ago

A submarine dives below the surface, heading downward in five moves. If each move downward was 200 feet, where is the submarine

weqwewe [10]

Given:

A submarine dives below the surface, heading downward in 5 moves.

Each move downward = 200 feet

To find:

The location of submarine after it is finished diving.

Solution:

According to the question,

1 move downward = 200 feet

5 move downward = 5 × 200 feet

= 1000 feet

Since, the submarine heading downward in 5 moves, therefore the submarine is 1000 feet downward after it is finished diving.

5 0

3 years ago

In the diagram, the measure of angle 2 is 126°, the measure of angle 4 is (7x)°, and the measure of angle 5 is (4x + 4)°. A tran

kramer

Answer:

The correct option is C

C) 76°

Step-by-step explanation:

The question is incomplete because the figure is not given. I have attached the figure of the same question below. Consult it for better understanding.

We can see in the figure that <2 and <4 are opposite angles, therefore these are equal.

<2 = <4

126 = 7x

x = 18

Similarly we can also see that <5 and <7 are also opposite angles, therefore they are equal too.

<7 = <5

<7 = 4x+4

Substitute x=18

<7 = 4(18) + 4

<7 = 76°

3 0

4 years ago

Johnny earns $5 per day delivering newspapers. What equation shows how much money m he earns delivering papers for d days?

jeyben [28]

Hello there,

Your correct answer would be C.) m=5d.

The reason is so because 5 and d are going to be multiplied and so sence they would be multiplied this mean's that you will see how much money he earned in (m) days.

Correct answer would be "C.) m=5d"

Hope this helps!

4 0

3 years ago

Marissa rode her bike to the park and back home. She lives 2 3/10 miles from the park. How many miles did Marissa ride her bike

Dovator [93]

$2\frac{3}{10} +2\frac{3}{10} =\frac{(2\times10)+3}{10}+\frac{(2\times10)+3}{10} =\frac{20+3}{10}+\frac{20+3}{10}\\\\=\frac{23}{10} +\frac{23}{10} =\frac{23+23}{10} =\frac{46}{10} =4\frac{6}{10} =\boxed{\bf{4\frac{3}{5}}}$

Marissa rode 4 3/5 miles in all.

5 0

3 years ago

Read 2 more answers