7. the perimeter of a triangle is 80cm. write and simplify an equation to solve for x.
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Answer:

425

Step-by-step explanation:

The number of dogs at the park that weighed over 50 pounds will be 332 dogs.

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

85% of the dogs at a park weighed over 50 pounds. If there were 400 dogs at the park. Then the number of dogs at the park that weighed over 50 pounds will be given as,

⇒ 85% of 400

⇒ 0.85 x 400

⇒ 332 dogs

The number of dogs at the park that weighed over 50 pounds will be 332 dogs.

More about the percentage link is given below.

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Answer: A) 6x = 54; x = 9 times older

Step-by-step explanation:

9 x 6 = 54

Answer:

6

Step-by-step explanation:

I believe it is 6 if not please let me know I can help you figure it out

Hope this helps

Answer

X = 4

Step-by-step explanation:

-2x - 4 +5x = 8

-2x + 5x = 3x

3x - 4 = 8

     +4   +4

3x = 12

3x     3x

X=4

Answer: Ok so when he starts with one month he has $1600 each month and add $500x for example for the second month add another $1600 and $500x and so on the x stands for however many cars he sold that day

Answer:

94.85 rounded to the nearest tenth is 94.9

(5, 40) is not on the line.

Equation: 8x + y = 200.

Plug in our choosen point: 8(5) + (40) = 200.

Mulitply: 40 + 40 = 200

Add: 80=200

Answer: 80≠200

This works for your problem.

Answer:

48 minutes

Step-by-step explanation:

Applying the rules of exponents and radicals, the table can be completed as follows:

First column: [tex]64^1 = 64[/tex]

Second Column: [tex]\mathbf{64^\frac{1}{2} = 8}[/tex]

Third Column: [tex]\mathbf{64^\frac{1}{3} = 4}[/tex]

Fourth Column: [tex]\mathbf{64^0 = 1}[/tex]

Fifth Column: [tex]\mathbf{64^{-\frac{1}{2}} = \frac{1}{8}}[/tex]

Sixth Column: [tex]\mathbf{64^{-1} = \frac{1}{64}}[/tex]

The table to complete is attached below.

We will need to apply the knowledge of exponents and radicals of a number in order to fill out the table.

The numbers expressed as powers of 64 in the top row are equivalent to the numbers expressed as radicals or rational numbers in the corresponding cells in the bottom row.

Also, recall the following rules of exponents and radicals:

Appling the above rule, we would have the following:

[tex]64^1 = 64[/tex]

[tex]64^\frac{1}{2} = \sqrt[]{64} = 8\\\\\mathbf{64^\frac{1}{2} = 8}[/tex]

[tex]64^\frac{1}{3} = \sqrt[3]{64} = 4\\\\\mathbf{64^\frac{1}{3} = 4}[/tex]

[tex]\mathbf{64^0 = 1}[/tex]

[tex]64^{-\frac{1}{2}} = \frac{1}{64^{\frac{1}{2}} } = \frac{1}{\sqrt{64} } = \frac{1}{8} \\\\\\\mathbf{64^{-\frac{1}{2}} = \frac{1}{8}}[/tex]

[tex]64^{-1} = \frac{1}{64^1} } = \frac{1}{64 } \\\\\mathbf{64^{-1} = \frac{1}{64}}[/tex]

Therefore, applying the rules of exponents and radicals, the table can be completed as follows:

First column: [tex]64^1 = 64[/tex]

Second Column: [tex]\mathbf{64^\frac{1}{2} = 8}[/tex]

Third Column: [tex]\mathbf{64^\frac{1}{3} = 4}[/tex]

Fourth Column: [tex]\mathbf{64^0 = 1}[/tex]

Fifth Column: [tex]\mathbf{64^{-\frac{1}{2}} = \frac{1}{8}}[/tex]

Sixth Column: [tex]\mathbf{64^{-1} = \frac{1}{64}}[/tex]

Learn more here:

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Using the condition for the hypothesis test of a proportion, it is found that since there are at least 10 successes and 10 failures in the sample, it is sufficient for him to use a simple random sample of 189 cars.

To test an hypothesis involving a proportion p in a sample of size n, it is needed that there are at least 10 successes and 10 failures, that is, these following conditions are needed.

In this problem:

Then:

[tex]np = 189(0.06) = 11.34 \geq 10[/tex]

[tex]n(1 - p) = 189(0.94) = 177.66 \geq 10[/tex]

Hence, since there are at least 10 successes and 10 failures in the sample, it is sufficient for him to use a simple random sample of 189 cars.

A similar problem is given at https://brainly.com/question/24261244

Answer:

43,099

Step-by-step explanation:

Answer:

42,499, 43,099, 42,983, 42,532

Step-by-step explanation:

9514 1404 393

Answer:

  3/45

Step-by-step explanation:

To find the numerator, multiply the desired denominator by the fraction.

  x/45 = 1/15

  x = (45)(1/15) = 45/15 = 3

The equivalent fraction is 3/45.

40 seats for that many people

Answer:

X=11º

Y=26º

Step-by-step explanation:

77=7x      11=x

180=77+77+y        26=y

Answer:

1. 0.55

2. 11.36 (12)

Step-by-step explanation:

Question 1

If the price of one gallon is 2.09, and the conversion rate of gallon to litre is:

1 gallon : 3.785l

We can divide the cost of one gallon by the equivalent of 1 gallon in litres:

2.09 ÷ 3.785 = 0.5521

= 0.55

Question 2

If one quart is 4kg, and we need to find the total number of quarts in 100 pounds, we can convert kg into lbs and divide:

1kg = 2.2lbs

4kg = 4(2.2)lbs

4kg = 8.8lbs

Now divide 100lbs by this:

100 ÷ 8.8 = 11.3636

= 11.36

Technically this should be rounded up to 12 quarts as you wouldn't be able to have 0.36 quarts but just in case.

Hope this helps!

Answer:

not similar 2 and 3

Step-by-step explanation:

The horizontal asymptote of the function is the minimum number of deer in the area.

The equation is given as:

[tex]\mathbf{f(x) = \frac{40 + 2x}{1 + 0.05x}}[/tex]

Expand the numerator

[tex]\mathbf{f(x) = \frac{40(1 + 0.05x)}{1 + 0.05x}}[/tex]

Cancel out the common factors

[tex]\mathbf{f(x) = 40}[/tex]

Hence, the equation of horizontal asymptote is:

[tex]\mathbf{f(x) = 40}[/tex]

The horizontal asymptote means that, the number of deer will never be less than 40

Read more about horizontal asymptotes at:

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Answer:

Combine the like terms. In this equation there are two like terms. They both are xy. Note: When there is no number in front of a term, you can assume that the number is 1.

5xy - 1xy

Subtract normally and then attach the xy.

4xy

Hope this helps! :)

Answer:

X(5y-y)

Step-by-step explanation:

Answers:

The graphs are below

========================================================

Explanation:

6)

Let's solve for y to get the equation in slope intercept form y = mx+b

[tex]5x+3y = 15\\\\3y = -5x+15\\\\y = \frac{-5x+15}{3}\\\\y = \frac{-5x}{3}+\frac{15}{3}\\\\y = -\frac{5}{3}x+5\\\\[/tex]

That last equation matches with y = mx+b to get

m = -5/3 = slope

b = 5 = y intercept

To graph this, we plot the y intercept at (0,5). Then move down 5 and to the right 3 to arrive at (3,0) as the second point. This movement is directly tied to the slope. We only need two points to graph a straight line.

---------------------------------

7)

The equation y = -x+2, aka y = -1x+2, is already in slope intercept form

m = -1 = slope

b = 2 = y intercept

Start at (0,2) which is the location of the y intercept. Move down 1 and to the right 1 due to the slope -1/1 = -1. This should move us to the point (1,1). Connect the two points (0,2) and (1,1) with a straight line to finish up the graph.

---------------------------------

8)

We start with the origin (0,0) because the y intercept of y = 3x is 0. It might help to think of y = 3x as y = 3x+0

Then we move up 3 units and to the right 1 unit to get to (1,3) as our next point. Connect the two points with a straight line

slope = 3

y intercept = 0

Once again, the graphs are shown below.

Answer:

y = 1/2x + 1/2

Step-by-step explanation:

Pick two point that you can write an ordered pair that are on the line.

Points (1, 1) and (3, 2).

Slope = (change in the y-values)/(change in the x-values)

Slope = (2 - 1)/(3 - 1)

Slope = 1/2

Next substitute the slope = 1/2 and point (3, 2) into y = mx + b and solve for "b"

y = mx + b

2 = 1/2(3) + b

2 = 3/2 + b

2 - 3/2 = b            

1/2 = b

The equation of the line: y = 1/2x + 1/2

Answer:

Step-by-step explanation:

Hmmmm... Several big questions about this simple phrase.

1) Are you using the European convention of using a period as an American would use a comma? Does 2.200 mean 2200 or 2.2 with precision to the nearest thousandths.

I will ASSUME you are using the European form and 2.200 = 2200

2) PEMDAS says multiply and divide are equal weight so complete as read left to right.

2200/54 = 40.740740740...

40.740740740...•20 = 814.814814814814...

or, if this is really supposed to be

2.200 / (54(20)) then = 2.037037037037...

Then again, the symbol between the 4 and last 2 is not really a multiplication symbol. It's more of a circle. Now does that mean degrees? and if degrees, are they temperature or angular? Or does that circle indicate an exponent of zero, in which case 54° = 1  and PEMDAS would say the result is 0.110 to an American and 110 to a European.

What we have here is a failure to communicate.

Answer:

In geometry, a hypotenuse is the longest side of a right-angled triangle, the side opposite the right angle. The length of the hypotenuse can be found using the Pythagorean theorem, which states that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the other two sides.

Step-by-step explanation:

I think your answer may be 100?

Double Checked on this site, it correct:

Answer:

y = (x - 3)²-2 is the correct answer

Answer:

2/3, 5/6, 2/9, 11/18

Step-by-step explanation:

Answer:

2/9, 11/18, 2/3, 5/6

Step-by-step explanation:

multipy all the denominators and numerators by what it takes to get 18

ie. 2/3 *6 =12/18

etc.

Answer:

8

Step-by-step explanation:

Answer:

Step-by-step explanation:

The cost of one throw blanket was 3(1.0825) = 3.2475

1 blanket costs 3.2475

x blankets cost 29.22                  Cross multiply

3.2475 x = 29.22                          Divide by 3.2475

x = 29.22/3.2475

x = 9 dollars.                                 The person writing the question and I differ by 1/433 because we rounded at different times. You should round at the end.

Answer:

sara has 18 rings

sammie has 25 rings

Step-by-step explanation:

Emilio has 34

Sammie has 9 less than Emilio

34-9=25

Sammie has 7 more than sara

25-7=18

sara has 18

The number of rings that Sammie and Sara will have will be 25 and 18 respectively.

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

Suppose the number of rings Sammie have is "S" the number of ring Emilio have is E and the number of rings that Sara has is "Sr"

As per the given,

S = E - 9

S = Sr + 7

And , E = 34

By substitution,

S = 34 - 9 = 25 and Sr = 25 - 7 = 18

Hence "The number of rings that Sammie and Sara will have will be 25 and 18 respectively".

For more about the equation,

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$ 6.30

Step-by-step explanation:

10 - (2.5 x $ 1.48) = $ 6.30