3 years ago

In which situation is the distance traveled proportional to time? A: An airplane landing

Mathematics

2 answers:

Softa [21]3 years ago

8 0

Answer:

Step-by-step explanation:

you add it my g

Lilit [14]3 years ago

3 0

Answer:

C: A person running on a treadmill at 3mph for 6 minutes

Step-by-step explanation:

I just had the question and got it right.

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What is -3x +3y = 15 <br> -2x - 6y = -14<br>

Katarina [22]

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Step-by-step explanation:

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2 years ago

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Celia filled the glasses shown below completely with water. The total amount of water that Celia poured into the glasses is 80 c

bagirrra123 [75]

The height of glass 1 is 7.6
so, you find the volume of glass 2,= 26.376
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3 years ago

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morpeh [17]

It’s would be 24 photos per day

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2 years ago

The sum of the first n terms of an arithmetic sequence is n/2(4n + 20).

lesantik [10]

Answer:

(a).

$S_{n} = \frac{n}{2} (4n + 20) \\ \\S _{n - 1} = \frac{(n - 1)}{2} (4n - 4 + 20) \\ \\ S _{n - 1} = \frac{(n - 1)}{2} (4n + 16) \\ \\S _{n - 1} = \frac{(n - 1)(4n + 16)}{2} \\ \\ { \boxed{S _{n - 1} = {2 {n}^{2} + 6n - 8}}} \\$

(b).

from general equation:

$S _{n - 1} = \frac{(n - 1)}{2} (4n + 16)$

first term is 4n

common difference:

$16 = \{(n - 1) - 1 \}d \\ 16 = (n - 2)d \\ d = \frac{16}{n - 2}$

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3 years ago

The ratio of boys to girls who play soccer in Mr. Fraser’s class is 14:6. If there were 400students in the school, how many boys

ollegr [7]

Answer:

280

Step-by-step explanation:

Set up a ratio to solve.

Mr. Fraser's class has 20 soccer playing students, and 14 are boys.

14/20 = x/400

Cross multiply. 20x= 5600

Divide by 20 to solve

x= 280

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2 years ago