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Anton [14]
3 years ago
14

What is 25% of 100????

Mathematics
2 answers:
seropon [69]3 years ago
7 0

Answer: 25

Step-by-step explanation: Well <em>percent</em> means <em>over 100</em> so we can set up an equation for this problem by reading it from left to right.

<em>What</em> means <em>x</em>, <em>is</em> means <em>equals</em>, <em>25%</em> is <em>25/100</em>, <em>of</em> means <em>times</em>, and 100 means 100. So we have the equation x = 25/100 · 100.

Simplifying on the right side of the equation,

notice that 25/100 reduces to 1/4.

So we have x = 1/4 · 100.

Think of the 100 as 100/1.

So we can cross-cancel the 100 and 4 to 25 and 1

and we have x = 1 · 25 over 1 · 1 or x = 25.

Now let's check our answer back in the original problem to see if it makes sense.

We have <em>25 is 25% of 100</em>.

Well we know that 100% of 100 would be 100 so 25% of 100 should be alot less than 100 so 25 seems to make sense.

My work is attached in the image provided.

adell [148]3 years ago
4 0

Answer:

25

Step-by-step explanation:100 percent of 100 is 100 so 25 percent is 25

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determine the vertex and axis of symmetry for the following: f(x) = 2x to the power of 2 - 12x + 24 ?
Vikki [24]

Answer:

vertex = (3,24)  Axis of symmetry = 3

Step-by-step explanation:

Use the vertex formula to find x: x=-b/2(a)

x= 12/2(2) = 3 (this is your axis of symmetry)

Substitute 3 for x in the equation to get y: y = 42

Once you have both x and y you have your vertex.

7 0
3 years ago
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muminat

Answer:

p  ≥ -10

Step-by-step explanation:

Divide both sides by-9:

When dividing or multiplying by a negative number, always flip the inequality sign:

-9p/-9 > = 90/-9

Cancel out the negatives:

9p/9 > = 90/-9

Simplify the fraction:

p > = 90/-9

Simplify the signs:

p > = -90/9

Find the greatest common factor of the numerator and denominator:

p >= -10 · 9/ 1 · 9

Factor out and cancel the greatest common factor:

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6 0
3 years ago
Solve the given system of equations utilizing either the substitution or addition method.
Nataly [62]

Answer:

Value of x=4 and y=-13/3

Step-by-step explanation:

We need to solve the systems of equations

5x+3y=7 \ and \ \frac{3}{2}x-\frac{3}{4}y =9\frac{1}{4}

Solving using substitution method:

Let:

5x+3y=7---eq(1) \\ \frac{3}{2}x-\frac{3}{4}y =9\frac{1}{4}---eq(2)

Find value of x from eq(1) and put in eq(2)

5x+3y=7\\5x=7-3y\\x=\frac{7-3y}{5}

Put value of x in eq(2)

\frac{3}{2}(\frac{7-3y}{5}) -\frac{3}{4}y =\frac{37}{4}\\\frac{21-9y}{10} -\frac{3}{4}y =\frac{37}{4}\\Taking \ LCM\\\frac{21*2-9y*2-3y*5}{20}  =\frac{37}{4}\\\frac{42-18y-15y}{20}  =\frac{37}{4}\\42-33y=\frac{37}{4}*20\\42-33y=185\\-33y=185-42\\-33y=143\\y=\frac{143}{-33}\\y=-\frac{13}{3}

Now, finding value of x by putting value of y in eq(1)

x=\frac{7-3y}{5}\\x= \frac{7-3(-\frac{13}{3}) }{5}\\x=\frac{7+13}{5}\\x=\frac{20}{5}\\x=4

So, Value of x=4 and y=-13/3

4 0
3 years ago
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