12.5 is 25% of what number

Answers

Answer 1

Answer: 12.5 is 25% of x
percent means parts out of 100
25%=25/100=1/4
12.5=1/4 of a number
mulitply both sides by 4
50=number

the number is 50

Answer 2

Answer: Since 25% is 1/4 of 100%, then you do 12.5 times 4 to get 50.

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Does the associative property always,sometimes or never hold for subtraction.

Answers

You can use the associative property with addition and multiplication operations, but not subtraction of division, only some times.

Tracy is running in a 5.25km race on Saturday. a marathon is approximately 42km. how many times as long as Tracy's race is a marathon?

Answers

The answer is 36.8km, because all you do is subtract 5.2km minus 42km

Which points are 3.5 units apart?A.(7.5, 1.2) and (7.5, –2.3)
B.(7.5, –3.5) and (7.5, 3.5)
C.(7.5, 1.2) and (7.5, 2.3)
D.(7.5, –3.5) and (7.5, 7)

Answers

The points between whom the distance is 3.5 units apart are (7.5, 1.2) and (7.5, -2.3).

What is time taken in kinematics? What is a mathematical function, equation and expression?

distance formula : The distance formula is given by -

$$d = √((x_2 - x_1)^2 + (y_2-y_1)^2)\n$

function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.

expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.

equation : A mathematical equation is used to equate two expressions.

Given is to find the points between whom the distance is 3.5 units apart.

Using the distance formula for the points (7.5, 1.2) and (7.5, -2.3), we get-

d² = (- 2.3 - 1.2)² + (7.5 - 7.5)²

d² = (3.5)²

d = 3.5 units

Therefore, the points between whom the distance is 3.5 units apart are (7.5, 1.2) and (7.5, -2.3).

To solve more questions on functions, expressions and polynomials, visit the link below -

brainly.com/question/17421223

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(7.5, 1.2) and (7.5, –2.3)
hope this helps

Lines l, m, and n are parallel.
What is the value of x?

Answers

since the lines are parallel, the angles created with lines l and n are equivalent. So if you find the angle for line l,
180°-46°=134°
that is also your angle for x

6x + 5y = 147
8x + 4y = 156

Answers

Answer:

[12, 15]

Step-by-step explanation:

{6x + 5y = 147

{8x + 4y = 156

-¾[8x + 4y = 156]

{6x + 5y = 147

{-6x-3y=-117← New Equation

________________

2y = 30

______

y = 15 [Plug this back into both equations to get the x-coordinate of 12]; 12 = x

So, using the Elimination Method, what I did here was took the bottom equation and multiplied it by -¾, turning 8x to -6x, canceling out all x-terms.It does not matter which variable you choose to eliminate, as long as you know what you are doing.

I am joyous to assist you anytime.

30,050,000 in scientific notation

Answers

3.005 x 10^7 or 10 to the seventh power. i cant type it on the computer.

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