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3 years ago

In the equation x=−3y, what is the unit rate?

Mathematics

1 answer:

denis23 [38]3 years ago

7 0

To solve this set the equation equal to y to get slope intercept form. the rate of change is -1/3

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A person draws a card from a hat. Each card is one color with the following probabilities of being drawn: 1/10 for red, 1/5 for

Kay [80]

Answer:

$\dfrac{1}{4}$

Step-by-step explanation:

We are given that a card is drawn from a hat.

Probability that a red card is drawn, P(red) = $\frac{1}{10}$

Probability that a blue card is drawn, P(blue) = $\frac{1}{5}$

Probability that a black card is drawn, P(black) = $\frac{1}{20}$

Probability that a pink card is drawn, P(pink) = $\frac{1}{5}$

All these events are mutually exclusive i.e. they do not have anything in common.

For any two events A and B which are mutually exclusive, with probability P(A) and P(B), the probability that any one of the two events occur:

$P(A\cup B) = P(A) + P(B)$

Here event A can be thought of as drawing a blue card and

event B can be thought of as drawing a black card

So, P(blue or black) = P(blue) + P(black)

$\Rightarrow \dfrac{1}{5}+\dfrac{1}{20}\\\Rightarrow \dfrac{4+1}{20}\\\Rightarrow \dfrac{5}{20}\\\Rightarrow \dfrac{1}{4}$

So, the probability that a blue or black card is drawn from the hat:

$\dfrac{1}{4}$

8 0

3 years ago

HELP ASAP I WILL GIVE BRAINLIEST FOR CORRECT ANSWER

yuradex [85]

Answer:

Step-by-step explanation:

5 0

3 years ago

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Select the formula for the xth term of the sequence.<br> 3, 11, 19,

djyliett [7]

Answer:

8n - 15

Step-by-step explanation:

for finding the nth term we need to figure out the difference between the numbers:

3,11,19 = difference of 8

multiples of 8:

8,16,24,32,40...

the nth term would be 8n - 5 because in order to get to 3 from 8, we minus 5

8 0

3 years ago

kevin has a rectangular-shaped garden its 15 feet by 12 feet wide he plants 36 square feet of tomatoes what percent of the garde

dusya [7]

Answer:

<u>20%</u> of the garden are tomatoes planted.

Step-by-step explanation:

Given:

Kevin has a rectangular-shaped garden its 15 feet by 12 feet wide.

He plants 36 square feet of tomatoes.

Now, to find the percent of the garden where tomatoes planted.

We need to get the total area of the garden first:

Total area of the garden = $15 feet by 12 feet.$

= $15 feet\times 12 feet.$

= $180\ square\ feet.$

So, getting the area of the garden 180 square feet.

Now, we calculate the percent of the area of garden where tomatoes are planted:

$\frac{Area\ of\ tomatoes\ planted}{Total\ area\ of\ garden} \times 100.$

$=\frac{36\ square\ feet}{180\ square\ feet} \times 100$

$=\frac{36}{180} \times 100$

$=\frac{3600}{180}$

$=20\%.$

Therefore, 20% of the garden where are tomatoes planted.

3 0

3 years ago

sam and cliff are both saving money. sam starts with 20$ and save 10$ per week. cliff starts with 50 and saves 7$ per week. when

tamaranim1 [39]

Answer:

i think that they will get the same amount after a week's pay

4 0

3 years ago

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