How can i use multiplication/division to calculate a percent of a number?

Answer:

Yes

Step-by-step explanation:

12/21 simplified is 4/7. if you divide the numerator (12) by 3 and the denominator (21) by 3, you get 4 and 7, or 4/7 if you put it together.

4/7 and 12/21 are equivalent fractions

A fraction represents a part of a whole.

We need to check whether the fractions  4/7 and 12/21  are equivalent or not.

Equivalent fractions are the fractions that have different numerators and denominators but are equal to the same value.

12/21 we have to simplify.

12 and 21 are the multiples of 3, so  divide numerator and denominator by 3

which gives 4/7

12/21=4/7

Hence, 4/7 and 12/21 are equivalent fractions

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Answer:

$7.99 for 10 cans

Step-by-step explanation:

First you want to see what the price is for one can. Do this by dividing 6 from 4.99 (4.99/6). This gives you 83 cents per can. Do the same for the other, and you get 79 cents per can. 79 cents is a better value than 83 cents.

Answer:

[tex]y=-\frac{1}{3}x+1[/tex]

Step-by-step explanation:

Let the equation of the line is,

y = mx + b

Where 'm' = slope of the line

b = y-intercept

From the picture attached,

b = 1

Slope of the line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is represented by,

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

Slope of the line passing through the points (0, 1) and (3, 0) will be,

m = [tex]\frac{0-1}{3-0}[/tex] = [tex]-\frac{1}{3}[/tex]

Equation of the line will be,

[tex]y=-\frac{1}{3}x+1[/tex]

Answer:

24

Step-by-step explanation:

1 ant = 6 legs

6 legs ×2 ants= 12 legs of ants

1 butterfly = 6 legs

2 butterfly ×6 legs = 12 legs of butterfly

total

12 legs of butterfly + 12 legs of ants

= 24 legs in total

Answer:

24

Step-by-step explanation:

1 ant = 6 legs

2 ants = 6 + 6 = 12

2 ants = 12 legs

1 butterfly = 6 legs

2 butterflies = 6 + 6 = 12

2 butterflies = 12 legs

12 + 12 = 24

There were 24 legs all together.

Both are 123

When dealing with angles you have to remember that all angles add up to 180, “the line angle” as I like to call it, it’s because 180 is completely flat.

2: Here you can use your eyes to see the angle is wider than 90, ”a perfect right”. So you can easily assume that the angle is gonna be 123.

1: the angle here shares the same place as your original angle. So you can easily assume that they have the same degree

Simple things very clear, hope this helps

Answer:

Step-by-step explanation: B

Answer: (F-G)(x)=5x2+2i +1

Step-by-step explanation

The resulting function for (f−g)(x) is 2x²+x-3

Let the required functions be:

f(x)=2x²+3x

g(x)=2x+3

We are required to find (f−g)(x).

(f−g)(x). = f(x) - g(x)

(f−g)(x) = 2x²+3x - (2x+3)

(f−g)(x) = 2x²+3x - 2x - 3

(f−g)(x) = 2x²+x-3

Hence the resulting function for (f−g)(x) is 2x²+x-3

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Answer:

it so blurry

Step-by-step explanation:

Answer:

Answer is -10

Step-by-step explanation:

Explanation:

First, define the variable. Let n represent the unknown number.

Next, write an equation to represent the situation. Because a quotient is the result of division, divide the unknown number by -5:

.

Then, use opposite operations and the properties of equality to solve for n. Notice that the variable, n, is divided by -5. So, to isolate n, do the opposite and multiply both sides of the equation by -5:

Finally, to check the solution, substitute -10 for n in the original equation:

The resulting statement is true, so the solution is correct.

9514 1404 393

Answer:

  A. f(x)=56,000(0.93)x+8400

Step-by-step explanation:

The growth rate is -7%, so the growth factor will be 1 -7% = 0.93. This is the base of the exponential term.

The 8400 special passes will add 8400 visitors to the park in addition to those who pay the regular fee. Thus the number of visitors is ...

  f(x) = 56,000(0.93^x) +8400 . . . . matches choice A

Answer:

Step-by-step explanation:

[tex]\sqrt{x} \sqrt{x} -(-9)^{2} \\=x-81\\x=81[/tex]

Answer:

No

Step-by-step explanation:

Triangular Inequalities state that in a triangle, the sides must always be less than the sum of the other two.

You would have sides x, 2x, 3x in this case and use the inequality a+b>c.

if...

a=x, b=2x, c=3x

then...

x+2x>3x

3x>3x which is false.

Therefore you cannot make a triangle with sides proportional to 1, 2, and 3.

Answer:

The solution to this problem is −2−14

Step-by-step explanation:

Answer:

4/99

Step-by-step explanation:

Answer:

Step-by-step explanation:

A discriminate of -8 is never going to give you a real root. D is wrong

You cannot have just 1 complex root, nor can you have just 1 real root unless the discriminate is 0. A and C are both wrong for the same reason. 1 complex root is impossible. They come in pairs.

So the answer is B. You have 2 complex roots.

Answer:Use the radioactive decay formula: A = Ao*2^(-t/h), where:

A = Amt of remaining after t time

Step-by-step explanation:

Ao = Initial amt

t = time of decay

h = half-life of the substance

in this problem

A = 21.5

Ao = 38

t = 1 year

h = half life of substance

Answer:

10(x + 4)

Step-by-step explanation:

Let x be the number

I hope this helps!

The mathematical expression​ of Ten times the sum of a number and 4 is 10(x + 4).

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

The Numbers constants, variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbol; that can also be used to indicate the logical syntax's order of operations and other features.

Let x be the number,

Where the Sum of a number and 4:

x + 4

Then Ten times the sum of a number and 4:

10(x + 4)

Therefore, the mathematical expression​ of Ten times the sum of a number and 4 is 10(x + 4).

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Answer:

B

Step-by-step explanation:

2d represents the amount sold on Tuesday

subtracting 150 from this amount fits the question

Step-by-step explanation:

p/q=2/3

q/r=6/5

First q is to be made same . So take LCM of 3 and 6 which is 6 only.

Now,

p/q=2×2/3×2=4/6

q/r=6/5 only

Cancel both the 6.

Therefore the answer is p/r=4/5.

Hope this helps

Answer:

p:r =4:5

hope it helps

Answer:

The point G represents: "60 dollars is the cost to dry clean 6 suits."

Step-by-step explanation:

If you look at the graph, on the bottom it shows number of suits, which is the independent. On the left it shows the cost of suits which is the dependent.

The dependent (Money) depends on the independent (Suits) so when you look at the point G you see that it is graphed on 6 suits for 60 dollars.

Answer:

Alright well first off you start by converting everything to fractions, but decimals work better for me. So it would be 40.5 and 1.25, 40.5 being miles and the other gas. Divide 40.5 by 1.25, giving you 32.4

His car get 32.4 miles per gallon

Answer:

14) No. 15) No. 16) Yes. 17) Yes.

Explanation:

When something is not a function, you can either use the vertical line test which involves drawing a line going up and down to see if the graph hits the line more than once. If this is the case, it is not a function. Or the input or x value of a function cannot have more than one

output or y value.

The line x = |y| on the graph of #14 is not a function because there is more than one y value for a single x value. This also hits a vertical line more than once.

The table on #15 is not a function because their is more than one y value per x value. It also hits a vertical line more than once.

The equation y = 1/4x is a function because there is only one output for each input. This also does not hit a vertical line more than once

The equation x = y - 1 is a function because it is simply a rearanged version of y = x + 1 which has only one output for each input. It also does not hit a vertical line more than once.

Answer:

You multiply

Step-by-step explanation:

You multiply 3 4/5 and 2 5/7

Answer is 10 1/3

Step-by-step explanation:

Remember (y2-y1)/(x2-x1)

[tex] \frac{y {}^{2} - y ^{1} }{x {}^{2} - x {}^{1} } [/tex]

for y, 10-6 = 4

for z, -3 + 1= -2

4/-2 is -2

your slope is -2

Answer:

Find the Inverse Function f(x)=5x-7. Replace with . Interchange the variables. Solve for . Tap for more steps... Rewrite the equation as . Add to both sides of the equation. Divide each term by and simplify.

Step-by-step explanation:

Step-by-step explanation:

5x+7=8x-3

subtract 7 from both sides

5x=8x-10

subtract 8x from both sides

-3x=-10

divides -3 from both sides

x=0.3

I hope I'm right and hope I helped :))

Answer:

CT = 10x-44

Step-by-step explanation:

Since J is the midpoint you would set your equation up like this

Now you would add like terms

Hope this helps!