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3 years ago

What is the experimental probability of drawing a red marble, given the following results?

Mathematics

1 answer:

ziro4ka [17]3 years ago

5 0

Answer:

7/20..i hope its correct

Step-by-step explanation:

all = 8+5+7

=20

red marbles / all = 7/20

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Answer pls…………………………..

Gnesinka [82]

Answer:

10/27

Step-by-step explanation:

3^x = 10

We want to find 3^(x-3)

Rewriting

We know that a^(b-c) = a^b * a^ (-c)

3^x * (3^-3)

We know that 3^-3 = 1/3^3

3^x * 1/27

10 * 1/27

10/27

6 0

3 years ago

mr. huber bought a block of fudge that weighed 2/5 of a pound. he cut the fudge into 6 equal pieces. what was the weight of each

Marina86 [1]

Answer:

$\large \boxed{\frac{1}{15} \text{ lb}}$

Step-by-step explanation:

You are starting with ⅖ lb of fudge. Then you cut it into six pieces.

You want to evaluate ⅖ ÷ 6

1. Treat the integer as a fraction

$\dfrac{2}{5}\div{\dfrac{6}{1}}$

2. Invert the divisor and change divide to multiply

$\dfrac{2}{5}\times{\dfrac{1}{6}}$

3. Divide numerator and denominator by 2

$\dfrac{1}{5}\times{\dfrac{1}{3}}$

4. Multiply numerators and denominators

$\dfrac{1}{5}\times{\dfrac{1}{3}} = \mathbf{\dfrac{1}{15}}\\\\\text{Each piece of fudge weighs $\large \boxed{\mathbf{\frac{1}{15}} \textbf{ lb}}$}$

7 0

4 years ago

What is the equation of the graphed line in point-slope form?

Flura [38]

We first need to find the gradient of the line
$\frac{y_{2}- y_{1} } {x_{2}-x_{1} } = \frac{-3-1}{-3-3}= \frac{-4}{-6}= \frac{2}{3}$

From the graph, we see the graph intercepts y-axis at -1

Hence, the equation of the line is $y= \frac{2}{3}x-1$

5 0

3 years ago

Read 2 more answers

Which is a perfect square?<br> 61<br> 62<br> 63<br> 65

user100 [1]

Answer:

So none of these would be a perfect square but the closet one to it would be 65

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Someone help me out please

Dimas [21]

Answer: 2 to 1 and 2;1

Step-by-step explanation:

in general there are 3 ways to write these ratios. A fraction, the one using to, and the ones with semicolans. This is how you will always want to write your ratios on the problems you are solving with your ratios when it asks that.

3 0

4 years ago

Read 2 more answers