Convert each fraction below so that the denominator is 100.

Answer:

5000

Step-by-step explanation:

Let's start with something that makes sense:

10 is 2 times larger than 5 because 5*2=10 or 10/5=2.

100 is 4 times larger than 25 because 25*4=100 or 100/25=4

Notice what's in bold. To find out how many times a larger number is compared to a smaller number, divide the larger number by the smaller number. Now, see attachment 1

Answer:

-38y - 19z - 4

Step-by-step explanation:

You meses to multiply the numbers outside the brackets with the values inside.

First you have -2(3y+2) so you multiply -2 with 3y = -6y and then you multiply the -2 with the +2 = -4. So you're left with -6y - 4 - 7z - 4(3z+8y).

Now do the same with the last one, multiply -4 by 3z = -12z, then multiply -4 with +8y = -32y. You're left with -6y-4-7z-12z-32y.

Now we change the order to make it easier and we have -32y-6y-12z-7z-4, we make the subtractions and we get -38y - 19z - 4

Answer:

48 square units

Step-by-step explanation:

Use the area formula, A = lw, where l is the length and w is the width

Plug in the length and width:

A = lw

A = (12)(4)

A = 48

So, the patio will cover 48 units²

9514 1404 393

Answer:

  5x +y = 20

Step-by-step explanation:

The equation of the parallel line will have the same x- and y-coefficients. The constant will be adjusted to make the equation true at the given point.

  5x +y = 5(3) +(5) = 20

The parallel line is ...

  5x +y = 20

Answer:

the total price of the item including sales tax is $330.

Step-by-step explanation:

If the sales tax rate is 10%, then the amount of sales tax charged on an item that costs $300 can be found by multiplying the cost of the item by the sales tax rate:

Sales tax = 10% of $300

= 0.1 x $300

= $30

Therefore, the sales tax charged on the item is $30.

To find the total price of the item including sales tax, we need to add the cost of the item to the sales tax charged:

Total price = Cost of item + Sales tax

= $300 + $30

= $330

Therefore, the total price of the item including sales tax is $330.

Answer:

30% decrease

Step-by-step explanation:

We have to divide 39 by 130 and then find the percentage of it. 39/130 is equal to 3/10, and 3/10 is equal to 30%. That means that it was a 30% decrease.

Answer:

35%

Step-by-step explanation:

Answer:

The radius of the ball is of 6 feet.

Step-by-step explanation:

The radius of the ball in spheric format is given by:

\(V = \frac{4\pi r^3}{3}\)

In which r is the radius.

A water-walking ball has a volume of approximately 904.32 cubic feet. What is the radius of the ball?

Volume in cubic feet, so the radius will be in feet. We have to find r for which \(V = 904.32\). So

\(V = \frac{4\pi r^3}{3}\)

\(904.32 = \frac{4\pi r^3}{3}\)

\(r^3 = \frac{904.32*3}{4\pi}\)

\(r = \sqrt[3]{\frac{904.32*3}{4\pi}}\)

\(r = 6\)

The radius of the ball is of 6 feet.

Answer:

  9500

Step-by-step explanation:

If r represents the number of registered voters, we are given that ...

  5985 = 0.63·r

  r = 5985/0.63 = 9500

9500 people are registered to vote.

Answer:

See explanation

Step-by-step explanation:

It appears that the second graph is better since it seems to be rather consistent. The graph of the first one seems out of place. Therefore it seems to be confusing and could be misleading.

Note that as x gets larger, y gets smaller, but the product xy remains constant at 192.

In mathematics, a function is a relationship between two sets, called the domain and the range, such that each element of the domain corresponds to exactly one element of the range. A function takes an input value (or values) and produces an output value (or values) according to a specific rule or formula. The input values are the domain of the function, and the output values are the range of the function. Functions can be represented using equations, graphs, tables, or verbal descriptions. They are used to model relationships between variables in various fields of mathematics, science, engineering, economics, and many other areas.

Here,

If x and y vary inversely, this means that their product is a constant. We can use this fact to find the constant of proportionality k as follows:

k = xy

If we know that y is 24 when x is 8, we can substitute these values into the equation above to solve for k:

k = xy

= 8(24)

= 192

Now we can use this value of k to write the inverse variation function:

xy = 192

or

y = 192/x

To sketch a graph of this function for x > 0, we can plot a few points and connect them with a smooth curve. Here are some points we can use:

(x, y)

(1, 192)

(2, 96)

(4, 48)

(8, 24)

(16, 12)

(24, 8)

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Since y is inversely proportional to x squared and y = 8 when x = 3.5, the negative value of x when y = 8/9 is equal to -10.5 or -21/2.

In Mathematics, an inverse variation can be modeled by this mathematical expression:

y ∝ 1/x

y = k/x

Where:

Based on the information provided above, we would determine the constant of proportionality (k) by substituting the value of the given variable as follows:

y = k/x²

k = yx²

k = 8(3.5)²

k = 98.

Now, we can determine the negative value of x:

x = √(k/y)

x = √(98/(8/9)

x = √110.25

x = 10.5 or 21/2.

x = -10.5 or -21/2.

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Answer: 4



Step-by-step explanation:

4/10 or 2/5 simplified

Hope this helps you out!

Step-by-step explanation:

Circumference of Circle =

\(2\pi \: r\)

given d = 19.4mi

r = 1/2d

= 1/2 x 19.4

= 9.7mi

Circumference of Circle =

\(2\pi(9.7) \\ = 19.4\pi \\ = 60.9mi \: (nearest \: tenth)\)

Answer:

yeah

Step-by-step explanation:

0

Your second impression was "right"; the answer is 36 in one restricted interpretation of the problem, in which a sandwich has precisely one type of bread, one type of meat, and one type of cheese.

The largest possible interpretation is that a sandwich consists of a top bread, 1 to 3 types of meat, 1 to 3 types of cheese, and a bottom bread which could be different from the top slice of bread (but two sandwiches are considered the same if the only difference is turning one upside down). The answer to that problem involves, for example, seven possible combination of meats, and is

(42)bread⋅(23−1)meat⋅(23−1)cheese=6⋅7⋅7=594

If you must use the same type of bread top and bottom the answer is

(41)bread⋅(23−1)meat⋅(23−1)cheese=4⋅7⋅7=396

The number of lights L that are on after t minutes of the stage shows is,

A. L = (1/2)t + 10.

A function can be defined as the outputs for a given set of inputs.

The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.

Given, When the show starts, 10 lights are on which is a constant in out function.

Every 30 seconds or (1/2) a minute 1 more light comes on.

∴  The function best models the number of lights that are on after t minutes of the stage shows is,

L = (1/2)t + 10.

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Answer:

12 feet

Step-by-step explanation:

1 inch= 8 feet

1/2 inch= 4 feet

1/4 inch= 2 feet

(2x2)/2= 2  (one triangle)

2x4=8 (rectangle)

2+2=4 +8=12

^2 was added 2 times cause there are 2 triangles

(you did not need a 3rd measurement cause the triangle measurements were equal)

Answer:

I think 164

Step-by-step explanation:

1312/8

Answer:

d = 5 is a solution to the equation 13 - d = 8

Step-by-step explanation:

We have to solve 13 - d = 8

Now,

13 - d = 8,

We add d on both sides,

13 - d + d = 8 + d

13 = 8 + d

we subtract 8 from both sides,

13 - 8 = 8 - 8 + d

5 = d

d = 5

Hence the answer is 5

Answer:

9 is friday and the ansr is 81

Step-by-step explanation:

Answer:

Maths is a very interesting subject, studying which - offers one with various positive & negative experience(s)

Step-by-step explanation:

Positive Experience : It enhances analytical, logical ability, which is useful in other subjects also. Eg - Accounts, Logical Reasoning

Negative Experience : It sometimes becomes bulky to solve, with loads of formulas & calculations. So, time management becomes a difficult task thereof

Answer:320000

Step-by-step explanation:

Using the z-distribution, it is found that a sample size of 1066 is required.

In a sample with a number n of people surveyed with a probability of a success of \(\pi\), and a confidence level of \(\alpha\), we have the following confidence interval of proportions.

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which z is the z-score that has a p-value of .

The margin of error is:

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)

From the previous study, the estimate is of 0.23, hence \(\pi = 0.23\).

98% confidence level, hence\(\alpha = 0.98\), z is the value of Z that has a p-value of \(\frac{1+0.98}{2} = 0.99\), so \(z = 2.327\).

The sample size is n for which M = 0.03, hence:

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)

\(0.03 = 2.327\sqrt{\frac{0.23(0.77)}{n}}\)

\(0.03\sqrt{n} = 2.327\sqrt{0.23(0.77)}\)

\(\sqrt{n} = \left(\frac{2.327\sqrt{0.23(0.77)}}{0.03}\right)\)

\((\sqrt{n})^2 = \left(\frac{2.327\sqrt{0.23(0.77)}}{0.03}\right)^2\)

\(n = 1065.5\)

Rounding up, a sample size of 1066 is required.

A similar problem is given at https://brainly.com/question/12517818

Answer:

38

Step-by-step explanation:

Answer:

the answer is 36ft² or c

Step-by-step explanation:

hope this helps :)

Answer:

0.6 = 60% probability that the bead is RED or GREEN.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question, we have that:

There are 9 + 8 + 3 = 20 beads.

Of those, 9 + 3 = 12 are red or green.

So, there is a \(\frac{12}{20} = 0.6\) probability that the bead is RED or GREEN.

The logarithmic model is:

\(g(x) = \frac{\ln{x}}{0.4}\)

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

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

The original function is:

\(y = f(x) = e^{0.4x}\)

To find the inverse function, first, we exchange y and x, so:

\(e^{0.4y} = x\)

Now, we have to isolate y, and we start applying the natural logarithm to both sides of the equality. So

\(\ln{e^{0.4y}} = \ln{x}\)

\(0.4y = \ln{x}\)

\(y = \frac{\ln{x}}{0.4}\)

Thus, the logarithmic model is:

\(g(x) = \frac{\ln{x}}{0.4}\)

A similar question is given at https://brainly.com/question/24290183

Answer: 42

Step by step:

42 is divisible by both 7 and 2

Answer:

44

Step-by-step explanation:

4 x 11 = 44

2 x 22 = 44

Answer:

It will take 1,080 min or 18 hours

Step-by-step explanation:

Here is why, since 6600 miles is 12 times farther than 550 miles you'd multiply the time it took to go 550 miles by 12 too