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3 years ago

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Peter won £75 as a prize. He gave 4/5 of the prize money to Roger and Bethan. Roger and Bethan shared the present in the ratio 2

:3. Work out how much they each got.

1 answer:

jeka57 [31]3 years ago

4 0

Roger will get 24 Bethany will get 36

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The average college lecture hall (auditorium) can seat 60 students with a standard deviation of 21. Assume that a total of 60 le

fiasKO [112]

Answer:

The standard deviation of the sample mean is $\sigma _ {\= x } = 2.711$

Step-by-step explanation:

From the question we are told that

The mean is $\= x = 60$

The standard deviation is $\sigma = 21$

The sample size is $n = 60$

Generally the standard deviation of the sample mean is mathematically represented as

$\sigma _ {\= x } = \frac{\sigma }{\sqrt{n} }$

substituting values

$\sigma _ {\= x } = \frac{ 21 }{\sqrt{60} }$

$\sigma _ {\= x } = 2.711$

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2 years ago

Help me pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Slav-nsk [51]

Answer:

A, 2 5/8 cups

Step-by-step explanation:

Since six dozen brownies is three times as much as two dozen, we can multiply 7/8 cups by 3. 3 x 7/8 = 21/8 If we simplify this fraction, it is 2 5/8. Therefore the answer is A, 2 5/8 cups.

4 0

2 years ago

Read 2 more answers

Given the following absolute value function find the range. ƒ(x) = |x + 5| - 8

balandron [24]

The result of an absolute value operation is never negative. So the smallest that the expression |x+5| can be is 0.

Tacking on "-8" to |x+5| leads to |x+5|-8

The range of this is [-8, infinity) since the smallest |x+5|-8 can be is -8. All I did was subtract 8 from the smallest value of |x+5|

Final Answer: choice C)

7 0

2 years ago

What doe decimals have that fractions don't have?

chubhunter [2.5K]

A decimal point................................................................

4 0

2 years ago

Help me find the answer

elixir [45]

Answer:

y = - $\frac{1}{4}$ x - 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (0, - 3) and (x₂, y₂ ) = (4, - 4) ← 2 points on the line

m = $\frac{-4+3}{4-0}$ = - $\frac{1}{4}$

Note the line crosses the y- axis at (0, - 3) ⇒ c = - 3

y = - $\frac{1}{4}$ x - 3 ← equation of line

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2 years ago