115%of what number is 84.87

Answers

Answer 1

Answer: 100% - x 115% - 84.87 x=(100*84.87)/115=73.8

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What are the pattern conbination between these number 18 48 88 128 178 38 68
A recipe calls for cup of broth. The largest volume-measuring tool that Tabitha has is a teaspoon. She knows that there are 16 tablespoons in 1 cup and 3 teaspoons in 1 tablespoon. How many teaspoons of broth should she use?

Beverly needs to make a container in the shape of a rectangular prism that holds 1000 in3 of liquid. The height of the container must be 10 in. She wants to use the dimensions that will allow her to use the least amount of material possible. Beverly’s mother says the difference in the amount of material will be too minor to worry about. Beverly believes it is possible to save more than half the material needed if they pick the right dimensions. Who is correct? Support your answer with specific numbers, and explain your reasoning. The dimensions are measured in whole units.

Answers

Given:
volume = 1,000 in³
height = 10 in

1,000 in³ / 10 in = 100 in² Area.

100 in²

Length Width Surface Area of the Rectangular prism
100 in 1 in 2,220 in²
50 in 2 in     1,240 in²
25 in 4 in    780 in²
20 in 5 in    700 in²


Surface area = 2(wl + hl + lw)

The best dimension is 20 inches by 5 inches by 10 inches. It has lesser surface area than other dimensions. Thus, it can save more materials.

These cuboids are made from small cubes. Write how many small cubes there are in each cuboid

Answers

The number of small cubes in each cuboid is:

(a) 3, b) 6, c) 27, and d) 16.

Given are four cuboids.

It is required to find the number of small cubes that are used to make these cuboids.

a) There are only 3 small cubes.

b) There is only one step of cubes.

Number of cubes = 3 + 3 = 6

c) There are 3 cubes arranged horizontally and 3 cubes arranged vertically through each surface.

Number of cubes in one step = 3 × 3 = 9

There are 3 steps like that.

So, total number of cubes = 3 × 9 = 27

d) There are 4 cubes in the horizontal position.

And there are 4 cubes going down.

Total number of cubes = 4 × 4 = 16

Learn more about Cuboids here :

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Answer:

a) 3 cubes

b) 6 cubes

c) 15 cubes

d) 16 cubes

Circle A and Circle B are congruent circles. Which statement must be true?

Answers

Answer:

There is not enough information given to determine which statement must be true. Additional information about the relationship between the two circles is needed

Scores on a test are normally distributed with a mean of 68.2 and a standard deviation of 10.4. Estimate the probability that among 75 randomly selscted students, at least 20 of them score greater that 78.

Answers

First, find the probability of scoring higher than 78. Scores are normally distributed, so you have

$\mathbb P(X>78)=\mathbb P\left((X-68.2)/(10.4)>(78-68.2)/(10.4)\right)\approx\mathbb P(Z>0.9423)\approx0.173$

Now, the event that any given student scores higher than 78 follows a binomial distribution. Here you have 75 total students (so $n=75$ ) with success probability $p=0.173$ .

So the probability of getting 20 students that fit the criterion is

$\mathbb P(Y=20)=\dbinom{75}{20}p^(20)(1-p)^(75-20)\approx0.0134$

How do you know that 4x2x2 is the same as 4x4

Answers

If you would like to know if 4x2x2 is the same as 4x4, you can find out using the following step:

2x2 equals to 4, so instead of 2x2 you can write 4.

The result is: 4x2x2 = 4x(2x2) = 4x4, which is the same as 4x4 in the second part of the question.

Because 2×2=4
so 4×4=16
and 4×2×2=16

Trying to find out what 18 minus one third is and what 12 minus 0ne fourth

Answers

18 - 1/3 = 53/3 or 17 2/3

12 - 1/4 = 47/4 or 11 3/4

:]

so what you do is 18/1 - 1/3 then you find the least common denominator which is 3
then you multiply 18/1 by three and turn it into 54/3
then you do 54/3-1/3 which equals 53/3
answer is 17 2/3

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