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2 years ago

-7x is less than or equal to -21

1 answer:

6 0

The answer is x=3
if you divide each by -7 to isolate x, it’s equal to positive three because 2 negatives make a positive

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Assume you are planning a picnic for lunch, but when you woke up there were rain clouds in the sky. If 50% of rainy days start w

Tasya [4]

Answer:

0.25 = 25% probability that it will rain today and ruin your picnic

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Cloudy skies

Event B: Rain

20% of all days start with clouds in the air

This means that $P(A) = 0.2$

50% of rainy days start with rain clouds in the air

50% of 10%. So

$P(A \cap B) = 0.5*0.1 = 0.05$

What is the probability that it will rain today and ruin your picnic

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.05}{0.2} = 0.25$

0.25 = 25% probability that it will rain today and ruin your picnic

3 0

2 years ago

Calculate the percent change in net sales from

oksian1 [2.3K]

Answer:

8.7%

Step-by-step explanation:

Well the net sales of Quarter 1 = 115 whilst the net sales of Quarter 2 = 125.

So the difference in the 2 numbers is 125-115 = 10

To find percentage change, you do 10/115 = 0.0869565217

Then, 0.0869565217 x 100 = 8.7% change to 1 decimal point.

So your percentage change is 8.7%.

7 0

2 years ago

3x-6<12 step by step equation

Mandarinka [93]

Answer:

x < 6

Step-by-step explanation:

Given

3x - 6 < 12 ( add 6 to both sides )

3x < 18 ( divide both sides by 3 )

x < 6

8 0

3 years ago

ANSWER THIS URGENTLY

neonofarm [45]

I think B if not type 1/3 pi 6 squared and add 6.71 or something with the 6.71

8 0

2 years ago

1. Bailey made 5 - cups of applesauce. He

madam [21]

Answer:

2 cups

Step-by-step explanation:

6 0

2 years ago