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Wewaii [24]
4 years ago
10

3/7 x + 5/8 - 3/14 x + 1/4

Mathematics
1 answer:
Anvisha [2.4K]4 years ago
5 0
\frac{3}{7} x +  \frac{5}{8} -  \frac{3}{14}x +  \frac{1}{4} =
\frac{3}{7} x - \frac{3}{14} x = - \frac{5}{8} -\frac{1}{4}
<span>
MMC (7,8,14,4)

7,8,14,4 | 2
7, 4, 7, 2| 2
7, 2, 7, 1| 2
7, 1, 7, 1| 7
1, 1, 1, 1____ 2*2*2*7 = 56

Solving
</span>\frac{3}{7} x - \frac{3}{14} x = - \frac{5}{8} - \frac{1}{4}
\frac{(56\div7*3)}{56} x - \frac{(56\div14*3)}{56} x = - \frac{(56\div8*5)}{56} -\frac{(56\div4*1)}{56}
\frac{24}{56}x -  \frac{12}{56} x = - \frac{35}{56}  - \frac{14}{56}
<span>Cancel the denominators (56)
</span>24x - 12x = - 35 - 14
12x = - 49
\boxed{x = - \frac{49}{12}}
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i will give brainliest A person who weighs 240 pounds burns 180 calories per mile of running.A person who weighs______pounds, bu
Vedmedyk [2.9K]

Set up a ratio:

240/180 = X/36

Cross multiply:

240 * 36 = 180x

8640 = 180x

Divide both sides by 180:

X = 8640 / 180 = 48

The person would weigh 48 pounds.

7 0
3 years ago
Read 2 more answers
Does anyone know how to solve this?
Lilit [14]

The pattern is that the numbers in the right-most and left-most squares of the diamond add to the bottom square and multiply to reach the number in the top square.


For example, in the first given example, we see that the numbers 5 and 2 add to the number 7 in the bottom square and multiply to the number 10 in the top square.


Another example is how the numbers 2 and 3 in the left-most and right-most squares add up to the number 5 in the bottom square and multiply to the number 6 in the top square.


Using this information, we can solve the five problems on the bottom of the paper.


a) We are given the numbers 3 and 4 in the left-most and right-most squares. We must figure out what they add to and what they multiply to:

3 + 4 = 7

3 x 4 = 12

Using this, we can fill in the top square with the number 12 and the bottom square with the number 7.


b) We are given the numbers -2 and -3 in the left-most and right-most squares, which again means that we must figure out what the numbers add and multiply to.

(-2) + (-3) = -5

(-2) x (-3) = 6

Using this, we can fill the top square in with the number 6 and the bottom square with the number -5.


c) This time, we are given the numbers which we typically find by adding and multiplying. We will have to use trial and error to find the numbers in the left-most and right-most squares.


We know that 12 has the positive factors of (1, 12), (2,6), and (3,4). Using trial and error we can figure out that 3 and 4 are the numbers that go in the left-most and right-most squares.


d) This time, we are given the number we find by multiplying and a number in the right-most square. First, we can find the number in the left-most square, which we will call x. We know that \frac{1}{2}x = 4, so we can find that x, or the number in the left-most square, is 8. Now we can find the bottom square, which is the sum of the two numbers in the left-most and right-most squares. This would be 8 + \frac{1}{2} = \frac{17}{2}. The number in the bottom square is \boxed{\frac{17}{2}}.


e) Similar to problem c, we are given the numbers in the top and bottom squares. We know that the positive factors of 8 are (1, 8) and (2, 4). However, none of these numbers add to -6, which means we must explore the negative factors of 8, which are (-1, -8), and (-2, -4). We can see that -2 and -4 add to -6. The numbers in the left-most and right-most squares are -2 and -4.

4 0
4 years ago
What is the solution for the equation 14.8 equals n -0.3
vodomira [7]

Hello there!

14.8=n-0.3

Answer:

\boxed{n=15.1=15.0}

You can also round up to the nearest tenths is 15.1 to 15.0 and its going to be stay.

Step-by-step explanation:

First you had to switch sides of equation form.

n-0.3=14.8

Then you add by 0.3 from both sides of equation form.

n-0.3+0.3=14.8+0.3

And finally, simplify by equation. You can also cross out by -0.3+0.3 and it gave us equal to zero. Then you add 14.8+0.3 and it equal to 15.1. You had to used their variable and its should be the right answer.

n=15.1

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

-Charlie

6 0
3 years ago
How to make a circeldiagramm
lys-0071 [83]
Make a circle and then another circle. There should be a oval in the middle. 
Like this:
 https://docs.google.com/drawings/d/10jIdkQW5rnxfDS9T2WeqkwRTvl92oJsYkXVLj8Zn6hU/edit



4 0
3 years ago
What is 10 as a percentage?
Marta_Voda [28]

i think its 1000%

why?

''Convert the decimal to a percentage by multiplying the decimal by 100.''

8 0
3 years ago
Read 2 more answers
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