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3 years ago

5

In a probability experiment, Karen flipped a coin 58 times. The coin landed on heads 33 times. What percentage of the coin flips

resulted in tails? Round to the nearest percent.

1 answer:

V125BC [204]3 years ago

5 0

Answer:

25

Step-by-step explanation:

i just subtracted 58 from 33.

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Create an equivalent ratio to 10:16 by dividing both sides by 2. What is the equivalent ratio?

Darya [45]

10 / 2 = 5

16 / 2 = 8

The equivalent ratio is 5:8

5 0

2 years ago

Please can I have an explanation also, I am terrible at these kinds of questions!

wlad13 [49]

Answer:

<em>The fraction of the beads that are red is</em>

Step-by-step explanation:

<u>Algebraic Expressions</u>

A bag contains red (r), yellow (y), and blue (b) beads. We are given the following ratios:

r:y = 2:3

y:b = 5:4

We are required to find r:s, where s is the total of beads in the bag, or

s = r + y + b

Thus, we need to calculate:

$\displaystyle \frac{r}{r+y+b} \qquad\qquad [1]$

Knowing that:

$\displaystyle \frac{r}{y}=\frac{2}{3} \qquad\qquad [2]$

$\displaystyle \frac{y}{b}=\frac{5}{4}$

Multiplying the equations above:

$\displaystyle \frac{r}{y}\frac{y}{b}=\frac{2}{3}\frac{5}{4}$

Simplifying:

$\displaystyle \frac{r}{b}=\frac{5}{6} \qquad\qquad [3]$

Dividing [1] by r:

$\displaystyle \frac{r}{r+y+b}=\displaystyle \frac{1}{1+y/r+b/r}$

Substituting from [2] and [3]:

$\displaystyle \frac{r}{r+y+b}=\displaystyle \frac{1}{1+3/2+6/5}$

Operating:

$\displaystyle \frac{r}{r+y+b}=\displaystyle \frac{1}{\frac{10+3*5+6*2}{10}}$

$\displaystyle \frac{r}{r+y+b}=\displaystyle \frac{10}{10+15+12}$

$\displaystyle \frac{r}{r+y+b}=\displaystyle \frac{10}{37}$

The fraction of the beads that are red is $\mathbf{\frac{10}{37}}$

8 0

3 years ago

What is 15x+8y less than or equal to 64

navik [9.2K]

Less than, because if you add 15+8 it equals 23 so less than

5 0

3 years ago

I NEED AN ANSWER NOWWWW!!!!!!!!!!!!!

Lunna [17]

9514 1404 393

Answer:

(c) The volume of a rectangular pyramid is 1/3 the volume of a rectangular prism. The volume of the rectangular pyramid is 66 cm3.

Step-by-step explanation:

The pyramid with the same overall dimensions will obviously have a smaller volume. The ratio is 1/3.

__

The formula for the volume of a rectangular prism is ...

V = LWH

The formula for the volume of a rectangular pyramid is ...

V = (1/3)LWH

The pyramid has 1/3 the volume of the prism.

5 0

3 years ago

Read 2 more answers

11111nata11111 [884]

(4/7) / (3/-8)...when dividing fractions, flip what u r dividing by, then multiply
4/7 * - 8/3 =
- 32/21 <===

3 0

3 years ago