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3 years ago

To which set or sets below does the number -7/8 belongs to ?

Mathematics

1 answer:

adoni [48]3 years ago

8 0

Answer:

-7/8

Step-by-step explanation:

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Solve the following:<br> a) 4x-3 = 2x + 7<br><br> b)<br> 2x+6=7x14

Igoryamba

$\huge \qquad \qquad \sf \underline{Answer}$

$\textbf {Let's Solve :}$

<h3>Question 1 :</h3>

$\textsf{4x - 3 = 2x +7}$

$\textsf{4x -2x = 3 +7}$

$\textsf{2x = 10}$

$\textsf{x=5}$

<h3>Question 2 :</h3>

$\sf{2x + 6 = 7 \times 14}$

$\sf{2x + 6 = 98}$

$\sf{2x = 98-6}$

$\sf{2x = 92}$

$\sf{x=46}$

6 0

1 year ago

Ruth has a beaker containing a solution of 800 mL of acid and 200 mL of water. She thinks the solution is a little strong, so sh

NISA [10]

Answer:

350 mL of water

Step-by-step explanation:

Well she starts with 200mL of water and there is 800 mL of acid of water.

She drains 100 mL of acid and adds 100 mL of water so there is 300 mL of water.

And she stirs meaning the compounds have mixed.

Then she drains 100 mL and she they are mixed she drains half of acid and half of water so she has 250 mL of water.

The she adds 100 mL of water so now there’s 350 mL of water left.

3 0

3 years ago

If x2 =<br> 20, what is the value of x?

leva [86]

Answer:

the square root of 20 is 4.472135955

Step-by-step explanation:

4 0

3 years ago

The statement explains why the ordered pair is a solution to the system of equations. Is the statement true or false? True False

tigry1 [53]

The system of the equation doesn't give the solution at (-3, -6).

<h2>Given to us</h2>

-4x+y = 6
5x-y =21

<h3>Equation 1,</h3>

-4x+y = 6

solve for y

$-4x+y =6\\y= 6+4x$

<h3>Equation 2,</h3>

5x-y =21

substitute the value of y in equation 2,

$5x-(6+4x) =21\\5x -6 -4x =21\\5x -4x=21+6\\x = 27$

Substitute the value of x in equation 2,

$5x-y =21\\5(27)-y =21\\135-y = 21\\-y=21-135\\-y = -114\\y=114$

We can see that the solution of the two equations is at (27, 114). Also, it can be verified by plotting the line on the graph.

Hence, the system of the equation doesn't give the solution at (-3, -6).

Learn more about system of equations:

brainly.com/question/12895249

6 0

2 years ago

Distribute 5 (10+7) ........

IRINA_888 [86]

Answer: 85

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers