All categories

3 years ago

What number increased by 3 is equal to three less than twice the number. In math form?

Mathematics

1 answer:

vova2212 [387]3 years ago

5 0

Answer:

The answer is 6.

Step-by-step explanation:

Let x represent the number.

x + 3 = 2x -3

3 + 3 = 2x - x

6 = x

I hope this was helpful to you! If it was, please consider rating, pressing thanks, or labelling my answer brainliest! Have a fantastic day.

You might be interested in

A truck has total of a pounds of fruit in each of n boxes. How many pounds of fruit are on the truck?

Mekhanik [1.2K]

The answer is a times n

3 0

3 years ago

Read 2 more answers

The amount of paint needed to cover the walls of a room varies jointly as the perimeter of the room and the height of the wall.

Mekhanik [1.2K]

<h3>4.4 quarts of paint needed to cover the walls of a room with a perimeter of 55 feet and 8-foot walls</h3>

Solution:

Given that,

The amount of paint needed to cover the walls of a room varies jointly as the perimeter of the room and the height of the wall

The formula for joint variation is:

$z = k \times x \times y$

Where,

z is the amount of paint needed

x is the perimter of room

y is the height of room

Room with a perimeter of 35 feet and 10 foot high walls requires 3.5 quarts of paint

Therefore,

$3.5 = k \times 35 \times 10\\\\ k = \frac{3.5}{350}\\\\k = 0.01$

find the amount of paint needed to cover the walls of a room with a perimeter of 55 feet and 8-foot walls

Substitute k = 0.01, x = 55 and y = 8 in joint variation formula

$z = 0.01 \times 55 \times 8\\\\z = 4.4$

Thus, 4.4 quarts of paint needed to cover the walls of a room with a perimeter of 55 feet and 8-foot walls

7 0

3 years ago

3(4x + 5) = 12 Which of the following correctly shows the beginning steps to solve this equation? (4 points) Group of answer cho

Marysya12 [62]

Answer:

1 is correct

Step-by-step explanation:

3(4x + 5) = 12

12x + 15 = 12

12x = -3

4 0

3 years ago

Rhonda's backyard has a rectangular patio that is 12.5 feet long,

Bas_tet [7]

Answer:

34992.66

Step-by-step explanation:

nice to know!

5 0

3 years ago

A sample from a population with μ = 40 and σ = 8 has a mean of M = 36. If the sample mean corresponds to a z = –1.00, then how m

juin [17]

Answer:

There are 4 scores in the sample.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .