All categories

3 years ago

Help me plzzz i need hwlp

Mathematics

1 answer:

Anuta_ua [19.1K]3 years ago

3 0

Answer:

x = -2

Step-by-step explanation:

so how i would do it is

-4x + (-3) = -x +3 you would subtract 3 from the right side and add/ subtract it onto the left

then you have

-4x + (-6) = -x next you take the -4x and you would add it to the right side to get

-6 = 3x

lastly you divide -6 / 3 to get

x = -2

would love if i could have brainlist

You might be interested in

14 times 4 times 18 times 6 times 5 Caleb draws $14 on each of 4 posters he draws 18 cats on each of six other posters if he dra

Rama09 [41]

Just add it all up with a calculator

4 0

3 years ago

Read 2 more answers

The probability that a student uses Smarthinking Online Tutoring on a regular basis is 0.31 . In a group of 21 students, what is

Ivenika [448]

Answer: 0.0241

Step-by-step explanation:

This is solved using the probability distribution formula for random variables where the combination formula for selection is used to determine the probability of these random variables occurring. This formula is denoted by:

P(X=r) = nCr × p^r × q^n-r

Where:

n = number of sampled variable which in this case = 21

r = variable outcome being determined which in this case = 5

p = probability of success of the variable which in this case = 0.31

q= 1- p = 1 - 0.31 = 0.69

P(X=5) = 21C5 × 0.31^5 × 0.69^16

P(X=5) = 0.0241

4 0

3 years ago

Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil.

oksian1 [2.3K]

Answer:

0.36 = 36% probability that the land has oil and the test predicts it

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.

45% chance that the land has oil.

This means that $P(A) = 0.45$

He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil.

This means that $P(B|A) = 0.8$

What is the probability that the land has oil and the test predicts it?

This is $P(A \cap B)$ . So

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

$P(B \cap A) = P(B|A)*P(A) = 0.8*0.45 = 0.36$

0.36 = 36% probability that the land has oil and the test predicts it

5 0

3 years ago

my yearly income is 18,000. My medical insurance premium is 230 a month. Is my medical premium 9.66% less then yearly income?

JulijaS [17]

NO.....9.66% less than $18,000 is $16,261.20
230×12= $2,760

7 0

3 years ago

How do i find the percentage if my number correct is 68 and my total is 85?

Andreyy89

68 divided by 85 multiply by 100
68/85=0.8 x 100= 80%

8 0

3 years ago