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Artist 52 [7]
3 years ago
6

All freshmen, sophomores, juniors, and seniors attended a high school assembly. The total student attendance is shown in the tab

le.
A 2-column table has 4 rows. The first column is labeled Class with entries freshmen, sophomores, juniors, seniors. The second column is labeled Number of people with entries 31, 10, 17, 22.

Twice during the assembly, a student is chosen at random to assist with the presentation. After the first student has finished assisting, the student returns to the group and can be chosen a second time. What is the probability that the first student chosen is a senior and the second student chosen is a sophomore?

StartFraction 11 Over 320 EndFraction
StartFraction 3 Over 80 EndFraction
StartFraction 11 Over 40 EndFraction
Two-fifths
Mathematics
2 answers:
tatyana61 [14]3 years ago
5 0

Answer:

A / 1st option

\frac{11}{320}

Step-by-step explanation:

Edge 2021

mezya [45]3 years ago
3 0

Answer:

11/320

Step-by-step explanation:

edge

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What is the common ratio between successive terms in the sequence
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The common ratio of this sequence is the following:
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Three students were given the expression shown to simplify.
masya89 [10]
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Emily spent £2400 on holiday in 2017.
LekaFEV [45]

Answer:

£1920

Step-by-step explanation:

The amount she spent in 2016 is 20% less than 2017. 20% less than is the same as 80% of the amount she spent in 2017. So, to find how much she spent in 2016, multiply 2400 by 0.80 (the decimal form of 80%):

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I hope this helps :)

8 0
2 years ago
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Nadusha1986 [10]
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3 years ago
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Vaselesa [24]

Answer:

1/3

Step-by-step explanation:

(1/3)^2x(1/3)^-1

so, we can write this as:

1/3 x 1/3 x 3/1

if calculated by cutting, the answer is 1/3

There is also an easier way to do this,

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as the bases are same, the powers will be added.

2+(-1)

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=1

so,

(1/3)^1 or 1/3

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