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2 years ago

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Students taking an online english test are randomly assigned 3 questions out of a set of 9 different questions. How many differe

nt sets of questions (i.e. tests) are possible for the students?

1 answer:

wolverine [178]2 years ago

4 0

Answer:

2 sets I think

Step-by-step explanation:

what are the answer choices

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Pls help question b

Snowcat [4.5K]

Answer: 44

Step-by-step explanation:

1/5 of the slab are grey implies that 4/5 are yellow.

The ratio of grey to yellow is thus given as :

1/5 : 4/5

which is 1 : 4

Therefore , the ratio of grey to yellow is 1: 4

The total ratio = 1 + 4 = 5

To calculate the number of yellow , we use the formula

number of yellow = $\frac{ratio of yellow}{total ratio}$ X total number of slabs , that is

number of yellow = $\frac{4}{5}$ X 55

number of yellow slab = 44

3 0

2 years ago

Bond [772]

$\frac{77}{16} = \frac{64+13}{16} = \frac{64}{16} + \frac{13}{16} =4 \frac{13}{16}=4.8125\\=4.81 \times 100~percent=481~percent\to\boxed {D}$

5 0

3 years ago

Hannah received $30 for her birthday and bought 3 shirts that were all the same price. If she had $9 left over, which equation s

Natasha2012 [34]

Money spent + money left over = total money

money spent + 9 = 30

We don't know the price of each shirt, so let x = price of 1 shirt.
Then, 3 shirts cost 3 times as much as x, or 3x.
She spent 3x.

3x + 9 = 30

5 0

2 years ago

Read 2 more answers

Triangle angle- sum theorem <br>help!!!<br>

PIT_PIT [208]

Answer:

222555413`125431534

Step-by-step explanation:

8 0

2 years ago

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If K = {(x, y)|x - y = 5}, find the corresponding range of y for the domain {0, 2, 4}.

Furkat [3]

Answer:

the answer is A {-5,-3,-1}

4 0

3 years ago