If x is a negative number , what is true about -x plz help me thanks

Answers

Answer 1

Answer: If x is negative, then -x is the minus of x which is positive, so -x is positive.
I hope this helped! :D

Answer 2

Answer: If the only thing we know about x is that it is negative, we only know that -x will always be positive.

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Four years ago, Alex was twice as old as Jake. Four years from now,Jake will be 3/4 of Alex’s age. How old is Alex?

Answers

Answer:Four years ago, Alex was twice as old as Jake. Four years from now, Jake will be 3/4 of Alex's age. How old is Alex? - Answer: 12.

Step-by-step explanation:

Solve the system of linear equations by substitution y=x-4
y=4x-10

Solution: ( , )

Answers

The value of the x is 2 and y is -2.

Given that,

The system of equation is;

$\rm y=x-4\n\ny=4x-10$

We have to determine

The value of x and y by using the substitution method.

According to the question

The system of equation is;

$\rm y=x-4\n\ny=4x-10$

Substitute the value of y from equation 1 to equation 2

$\rm y = x-4\n\n4x-10=x-4\n\n4x-x=-4+10\n\n3x=6\n\nx = (6)/(3)\n\nx=2$

Substitute the value of x in equation 1

$\rm y = x-4\n\ny = 2-4\n\ny = -2$

Hence, The value of the x is 2 and y is -2.

To know more about the Substitution Method click the link given below.

s://brainly.com/question/15683891

There is the equal values method, so you can do:

x-4 = 4x-10 (remove x from both sides)
-4 = 3x -10 (add ten to both sides)
6 = 3x (devide by 3x)
2 = x

Check: (by plugging it into the equation)
y = 2-4 and y = 8-10
y = -2 and y = -2
that's matches so it is correct...
YOUR ANSWER IS:
(2, -2)

I hoped I helped sort things out, and have a great day!

Nick's bank account balance was $21. if he writes a check for $30 and his bank charges him $35 for overdrawing his account, find his account balance

Answers

The balance of Nick's bankaccount is $86.

Concept:

As we have the bank balance after deducting the check amount and bank charges, we will add those amounts to the balance to get the initial bank balance.

How to solve this question?

Amount of Check = $30
Amount of Bank Charges = $35
Amount after deduction of Check and bank charges =$21
∴ Initial bank balance = 21 + 30 + 35 = $86

Thus ,the balance of Nick's bank account is $86.

Learn more about amount here:

brainly.com/question/1153322

#SPJ2

It is saying that the Balance was 21 if he wrote a check for 30 and The bank was charging him $35 for overdrawing his account of basically you’re gonna just Add so 21+30+35 is 86

in a laboratory, solution A will be mixed with solution B in a ratio of 3 to 2. what amount of solution A is needed to mix with 750 ML of solution B

Answers

1,125 ML of solution A will be mixed

Patricia scored 80% on a math test. She missed 4 problems. How many problems were on the test?

Answers

Answer: There are 20 problems on the test.

Step-by-step explanation:

Since we have given that

Patricia scored 80% on a math test.

She missed 4 problems.

So, 20% of the math test is equal to 4 problems.

Let the total number of problems on the test be x

According to question,

$(20)/(100)* x=4\n\nx=(100)/(20)* 4\n\nx=20$

Hence, there are 20 problems on the test.

There would be exactly twenty problems on the test for her to be able to get 80%.
You know it can't be ten because then that would make it 60% not 80% but if you add the first number of the percentage (8) and multiply it by two it will get you 16 then if you add 4 to that that would make it 20 and 16/20 equals 80%

What is the approximate area of the shaded region? A.
104.86 cm²

B.
87.47 cm²

C.
27.02 cm²

D.
10.54 cm²

Answers

7 x 7 = 49 area of square.

The radius of the circle is half the diameter. 7 cm/2 = 3.5

A = 3.14 × 3.5 cm × 3.5 cm = 38.465

Finale step. Subtract the area of the circle from the area of the square.

49 cm^2 −38.465 cm^2 = 10.535 or round to 10.54 cm^2

D. 10.54

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