3 years ago

Paco solves the equation -3x-5=1. where did paco make an error in his calculation

Mathematics

1 answer:

borishaifa [10]3 years ago

7 0

Answer:

The answer is x=-2

Step-by-step explanation:

-3x-5=1

-3x=6

x=-2

hope this helps!

You might be interested in

in a paper airplane contest marcels plane travels 3.345 meters. salvadors plane travels 3.35 meters. jennifers plane travels 3.3

ahrayia [7]

Salvadors
u . t h th
3 . 3 0 0
3 . 3 4 5
3 . 3 5 0
salvador has the farthest distance.

6 0

3 years ago

Read 2 more answers

What is 5 and 10 in simplest form<br>

dimulka [17.4K]

Answer:

5/10 in simplist form is 1/2

6 0

3 years ago

Read 2 more answers

What is the measure of the angle that is a complement of angle c

Paladinen [302]

Answer:

Step-by-step explanation:

40 degrees

4 0

3 years ago

How much is 21 hundreds

Dmitrij [34]

21 hundreds would be 2100

5 0

2 years ago

Read 2 more answers

The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.917 g and a standard deviation

Nutka1998 [239]

Answer:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

Step-by-step explanation:

Let X the random variable that represent the amounts of nocatine of a population, and for this case we know the distribution for X is given by:

$X \sim N(0.917,0.303)$

Where $\mu=0.917$ and $\sigma=0.303$

We have the following info from a sample of n =37:

$\bar X= 0.872$ the sample mean

And we want to find the following probability:

$P(\bar X \leq 0.872)$

And we can use the z score formula given by;

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

And if we find the z score for the value of 0.872 we got:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

6 0

3 years ago