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3 years ago

Five times a number, subtracted from fourteen, is triple the number. What is the number?

Mathematics

2 answers:

DaniilM [7]3 years ago

5 0

14 - 5x = 3x

14 = 3x + 5x

14 = 8x

14/8 = x

7/4 = x

hope this helped c:

aniked [119]3 years ago

3 0

5x - 14 = 3x
-14=-2x
7=x

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What is 390,000×600÷5?

rewona [7]

Answer:

it is 46,800,000

Step-by-step explanation:

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3 years ago

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Jane had 27 stickers two weeks ago. She bought the same amount of stickers each day for these two weeks. Now she has 237 sticker

lesya [120]

Answer:

Jane bought 15 stickers per day.

Step-by-step explanation:

Given;

Total number of stickers Jane has = 237

Number of stickers 2 weeks ago = 27

To find : Number of stickers she bought each day for two weeks.

Solution,

Let the number of stickers she bought everyday be x.

∴ Number of stickers for 2 weeks = $14\times x=14x$

Now according to question,

Total number of stickers = Number of stickers 2 weeks ago + Number of stickers she bought for 2 weeks

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3 years ago

Directions: Use each graph below to write the equation of the line in slope-intercept form y=mx + b. Make sure to show your work

xxTIMURxx [149]

Answer:

Step-by-step explanation:

Y=mx+b

Slope (m) is rise over run.

1. rise= 4 run=5 therefore, slope=4/5

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3 years ago

When rolling two 6-sided dice, what is the probability of rolling a sum of 7 and 11?

RSB [31]

Answer:

We have two 6-sided dice.

Each one of them has 6 possible outcomes.

The total number of outcomes for the pair, will be equal to the product between the numbers of outcomes for each one of them

Then the total number of outcomes is:

C = 6*6 = 36.

The number of outcomes where the sum of the dice are 7 are:

1 and 6

6 and 1

2 and 5

5 and 2

3 and 4

4 and 3

So we have 6 outcomes where the sum of both numbers is equal to 7.

The probability of rolling a pair such that the sum is equal to 7, is equal to the quotient between the number of outcomes that meet this condition (6) and the total number of outcomes (36)

The probability is:

P = 6/36 = 1/6

Now let's do the same for 11.

The outcomes where the sum is 11 are:

5 and 6

6 and 5

So we have two outcomes.

In this case, the probability will be:

P = 2/36 = 1/18

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3 years ago

A line passes through the points (2, –2) and (–6, 2). The point (a, –4) is also on the line. What is the value of a?

leonid [27]

Answer:

The value of a=6[/tex]

Step-by-step explanation:

step 1:-

col linearity of three points :-

We know that slopes of two parallel lines are equal.If two lines having the same slope pass through a common point ,then two lines will coincide . Hence ,If A,B,C are three points in the X Y- plane, then they will lie on a line,

that is three points are col linear if and only if Slope of AB= slope of BC

step 2:-

Since the given three points are col-linear, we have

Slope of AB= slope of BC

given points are A(2,-2) ,B(-6,2) and C(a,-4)

Step 3 :-

Slope of AB= slope of BC

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4 years ago