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2 years ago

15

There are 5 boys and 4 girls in my class. All of them are distinguishable. In how many ways can they be seated in a row of 9 cha

irs such that at least 3 girls are all next to each other?

1 answer:

GalinKa [24]2 years ago

8 0

There are 16 ways to arrange the row so that at least 3 girls always sit next to each other.

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Sal made 8 ft of sausage links on Friday morning. He used 4 ft for dinner service on Friday night. On Saturday morning, he made

oee [108]

Answer:

Net change in the amount of sausage Sal had from Friday morning until after dinner service Saturday night = 8 - 0 = 8 ft

Step-by-step explanation:

Amount of sausage links made on Friday morning = 8 ft

Amount of sausage links used on Friday night = 4 ft

Amount of sausage links remaining = 8 - 4 = 4ft (i)

Amount of sausage links made on Saturday morning = 8 ft (ii)

So,

Total amount of sausage links = 8 + 4 = 12 ft (from (i) and (ii) )

Amount of sausage links used on Saturday night = 12 ft

Amount of sausage links remaining = 12 - 12 = 0 ft

Net change in the amount of sausage Sal had from Friday morning until after dinner service Saturday night = 8 - 0 = 8 ft

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3 years ago

Ben has a cellphone plan where he pays $12 per

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Answer:

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Step-by-step explanation:

I have done the work before

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2 years ago

Solve the following system y=-2 -2x-7y=24

Dafna1 [17]

Answer:

x = -5

y = -2

Step-by-step explanation:

<em><u>Since you have y, plug that into the equation:</u></em>

-2x - 7y = 24

-2x - 7(-2) = 24

-2x + 14 = 24

<u><em>Then, subtract 14 from both sides:</em></u>

-2x + 14 = 24

- 14 - 14

__________

-2x = 10

<u><em>Finally, divide both sides by -2:</em></u>

-2x = 10

x = -5

So now you have, x = -5 and y = -2.

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3 years ago

If two polygons are similar, must they also be congruent?

NISA [10]

Answer:

I think No

Explanation:

We say two figures are similar if they have the same shape, but not necessarily the same size. <u>If they also have the same size</u>, we say they are congruent.

<h2> $hope \: this \: helps$ </h2>

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3 years ago

What is the relationship between 30 hours and 15 hours

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Answer:

it is 2

Step-by-step explanation:

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2 years ago