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3 years ago

E is the midpoint between D and F. If DE=3x+2, EF=5x, find the value of x. A. 1 B. 15 C. 3 D. 5

Mathematics

1 answer:

Nadya [2.5K]3 years ago

7 0

Step-by-step explanation:

then u times the d and e to get the equivalent fraction to the number u get

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Solve: -4x-8x+17=23 check solution

Sveta_85 [38]

Answer:

x = -1/2

Step-by-step explanation:

To solve the equation, we first need to combine like terms:

$-12x+17=23$

Simplify further:

$-12x=6$

Divide by -12 on both sides to get:

$x = -\frac{1}{2}$

To check the solution, plug x back into the original equation and check if we get the correct answer:

$-4(-\frac{1}{2})-8(-\frac{1}{2})+17=23$

$2+4+17= 23$

$23=23$

Thus, it checks out and our answer is correct.

4 0

3 years ago

77 over 200 as mixed number as a decimal

e-lub [12.9K]

Every mixed number is (a whole number) + (a piece of another one).
So every mixed number must be bigger than ' 1 ', because ' 1 ' is the
smallest whole number.

77/200 is less than ' 1 ', because the numerator is less than the
denominator. So it doesn't have what it takes to be a whole number.

Every fraction is a short way to write a division problem. It means

(the top number) divided by (the bottom number).

When you actually do the division, the answer is the decimal form
of the fraction.

When you divide 77 by 200 , you get 0.385 .

6 0

3 years ago

There are 12 football teams in a competition. The lions have a probability of 1/12 of winning the competition. How is this true?

MaRussiya [10]

Asuming that all the teams have the same skill levels the game will mostly be chance. The chance of winning will be 1/12 because they are 1 out of 12 teams.

7 0

3 years ago

Solve for p. 7+p+9=17 Enter your answer in the box.

Dovator [93]

First combine like terms.

7+9=16

16+p=17

Subtract 16 from both sides of the equation.

16-16+p=17-16

p=1

You can check to see if the solution is true by substituting 1 into the original equation.

7+1+9=17

17=17

4 0

3 years ago

In the rhombus m1 = 10x, m2 = x + y, m3 = 18z. Find the value of each variable

Blababa [14]

I think the question is missing some details. I found a similar question with an image as i attached in this question.

From this image, it its clear that m1, m2 and m3 refers to the angles in the middle of the rhombus

Answer:

x = 9

y = 81

z = 5

Step-by-step explanation:

Note that in rhombus, all sides are the same. If the diagonal lines are made, it will create 4 division of angles of 90 degrees.

Therefore m1 = m2 = m3 = 90 degrees

m1 = 10x and m1 =90

So, 10x = 90. Rearrange it to get x = 90/10 = 9

x = 9

m2 = x + y and m2 = 90

So, x + y = 90

9 + y = 90

y = 90 - 9 = 81

m3 = 18z and m3 = 90

So, 18z = 90

z = 90/18 = 5

3 0

3 years ago