55 is 20% of what numeber

Answer:

1/2 and 3/4

Step-by-step explanation:

First, let's look at the pattern of the fractions.

Each fraction is increasing by 1/4.

1/4 = 2/8

2/4 = 4/8

We know that 5/8 is in between 4/8 and 6/8 because 5 is in between 4 and 6.

Since we now know want fractions 5/8 is in between, all we have to do is convert.

4/8 = 2/4 (as is mentioned on the top)

6/8 = 3/4

Note: On the number line, 2/4 is referred to as 1/2...

Therefore, 5/8 is in between 1/2 and 3/4.

-kiniwih425

The best way the department can obtain the a simple random sample is by randomly selecting 128 students.

Refers to a sampling method where every member has an equal chance of being picked.

= 10% x 1,280

= 128 students

To perform simple random sampling, the department can randomly select 12e students from the 1,280.

Find out more on simple random sampling at https://brainly.com/question/3139978.

Answer:

  2. 17 or more times

  3. C = 3 +5h; slope is cost per hour; y-intercept is flat fee; $28 for 5 hours

  4. C = 25 +50h; $425 for 8 hours; $525 for 10 hours

Step-by-step explanation:

In every case, the total cost is the sum of the flat fee and the product of the cost per unit and the number of units.

With the pass, the cost for n matinees is ...

  with pass = 40 +1.00×n

Without the pass, the cost for n matinees is ...

  without pass = 0 +3.50×n

We want to find n such that the cost with the pass is less:

  with pass < without pass

  40 +n < 3.5n

  40 < 2.5n

  n > 16

Seth must attend 17 or more matinees for the pass to be of benefit.

__

  C = 3 +5h . . . . . $3 flat fee and $5 per hour

  slope: cost per hour

  y-intercept: flat fee

  cost for 5 hours: 3 +5·5 = 28 . . . dollars

__

  C = 25 +50h . . . . . . $25 flat fee and $50 per hour

For the given amounts of hours, we use that value for h.

  C = 25 +50(8) = 425 . . . dollars for 8 hours

  C = 25 +50(10) = 525 . . . dollars for 10 hours

Answer:

  (d)  -1.83

Step-by-step explanation:

The explicit expression for the sum is ...

  S = (-11/5)×(1 -(-1/5)^10)/(1 -(-1/5)) = -2.2(1 -1.024×10^-7)/1.2

  S = -1.8333331456

The sum is approximately -1.83.

_____

Additional comment

For a sum of a sequence with multiplier 'a' and common ratio r, we find ...

  [tex]\displaystyle S=\sum_{n=1}^{10}ar^n=ar+ar^2+ar^3+\dots+ar^{10}\\\\rS=ar^2+ar^3+\dots+ar^{10}+ar^{11}\\\\S-rS=ar+(ar^2-ar^2)+(ar^3-ar^3)+\dots+(ar^{10}-ar^{10})-ar^{11}\\\\S=\dfrac{ar-ar^{11}}{1-r}=ar\dfrac{1-r^{10}}{1-r}[/tex]

__

A calculator or spreadsheet can also find the sum for you.

Answer:

He would have a score of 110%

It's a shame to use a calc, but oh well

answer is [tex]300\frac{13}{125}[/tex] when you use a calc

Answer: 2304 millimeters

Step-by-step explanation: 48 x 48 = 2304

Answer:

i want to help you but i don't know the answer

Answer:

[tex]x = 4[/tex]

Step-by-step explanation:

It's an equilateral triangle, so the length of each edge is the same.

Solve the equation:

[tex]5x - 8 = 2x+4\\3x = 12\\x=4[/tex]

Answer:

23- 2x

Step-by-step explanation:

Twice a number is 2 and "x" represents "a number"

Key words: Twice, Difference (subtraction)

Answer:

[tex]\frac{p}{2}+3 [/tex]

Step-by-step explanation:

Subtract 3 bags of "safe measure" rice:

12 - 3 = 9 bags

Each bag serves 2 people:  2 x 9 = 18 people

Therefore, [tex]\frac{18}{2} +3=12[/tex]

So the answer is [tex]\frac{p}{2}+3 [/tex]

Answer:

D. 69.2

Step-by-step explanation:

v= 3.14 ×2.1^2 × 5

v = 69.237

when you round it, it is

69.2 cubic cm

Answer:

(c) 69.2 cm³

formula: v=πr²h

here, r = 2.1cm , h = 5cm

Answer:

20 :)

Step-by-step explanation:

as you can see it goes 8,10,12,14,16,20

Based on the assets the company has and its liabilities, its net working capital is $12,000.

The net working capital can be found by deducting the current liabilities from the current assets.

Solving gives:

= Current assets - Current liabilities

= 77,000 - 65,000

= $12,000

In conclusion, the net working capital is $12,000.

Find out more on the net working capital at https://brainly.com/question/5617813.

The length of PQ is 20 units

From the given triangle PQ = 2ST

Given the following parameters

PQ = -4x + 32

ST = 37 - 9x

Equate both expression:

-4x + 32 = 2(37 - 9x)

-4x + 32 = 74 - 18x

14x = 74 - 32

14x= 42

x = 3

Get the length of PQ
PQ = -4x + 32

PQ = -4(3) + 32

PQ = 20

Hence the length of PQ is 20 units

Learn more on median property of a triangle here: https://brainly.com/question/16189203

Answer:

D. [6 18] is the correct answer.

Answer:

Answer:

5:6 --> 10:12

Step-by-step explanation:

A good way to think of this is to provide a perspective: there are 5 boys every time there is 6 girls. So if there is 10 boys, that means there would be 12 girls (because 5 *2 = 10 and 6*2 = 12).

tl:dr: 5 *2 = 10 so 6*2 = 12

Answer:

9/12 or 3/4

Step-by-step explanation:

5+3+4=12

12-3=9

9 cards are not green so there is 9/12 of a chance the card is not green

Answer:

  $682

Step-by-step explanation:

The sum of ratio units is 4+7 = 11. The difference is 7 -4 = 3. That is, the sum of amounts saved is 11/3 times the difference of amounts saved:

  (11/3)($186) = $682

Together, Maria and Mark saved $682.

Answer: 1/10?

Step-by-step explanation:

Answer:

v = 70

Step-by-step explanation:

Plug in 40 for u, and 3 for t:

v = 40 + 10 * 3

Remember to follow PEMDAS. PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Additions

Subtractions

~

First, multiply, then add:

v = 40 + (10 * 3)

v = 40 + 30

v = 70

v = 70 is your answer.

~

Answer:

so if we take 450 an divide it by 6 you get 75. So take 75 times 18 and you get 1,350 so he would need 1,350 kilograms of rice for 18 people

Step-by-step explanation:

hope this helps :D

Answer:

118%

Step-by-step explanation:

Cora's kitten weighed in the last visit to the veterinarian's office= 550 grams

Right now, Cora's kitten weighs = 1200 grams

Increase in the kitten's weight= 1200 - 550 = 650 grams

Percent increase in weight= 650/550 * 100

= 118.18% = 118%

Hence, there is 118% increase in kitten's weight.

Answer:

  44 ft

Step-by-step explanation:

There are a couple of ways this can be worked. You could find the height of the tower, then use the Pythagorean theorem to find the wire length.

Or, you can find the wire length for the smaller triangle and scale up the result to the larger triangle. We choose this method.

The length of the wire (w) from the stake to the top of the pole is given by the Pythagorean theorem:

  w² = 4² +7² = 16 +49 = 65

  w = √65 . . . . . . take the square root

The base of the larger triangle is 18+4 = 22. The scale factor from the smaller to larger triangle is the ratio of base lengths: 22/4 = 11/2

The overall length of the guy wire is this ratio times "w" ...

  (11/2)√65 ≈ 44 . . . . feet

Answer: 11054.25

Step-by-step explanation:

Answer:

Step-by-step explanation:

The relevant relation is ...

  distance = speed × time

__

If we use x to represent hours after Wanda starts the race, the distance she travels at 16 miles per hour is ...

  16x . . . . miles

Hector has already traveled 18 miles. The distance he travels in x hours after Wanda starts the race is 12x at 12 miles per hour. His total distance from the start of the race is ...

  18 +12x . . . . miles

Wanda will catch up to Hector when these two distances are equal. That is the equation you want to write:

  16x = 18 +12x

__

To solve this equation, you subtract 12x from both sides.

  16x -12x = 18 +12x -12x

  4x = 18

Then, you divide both sides by 4.

  4x/4 = 18/4

  x = 9/2 = 4 1/2

If the given rates are maintained, Wanda will catch up to Hector after she rides 4 1/2 hours.

__

Additional comment

It should be noted here, that Hector will finish his remaining 42 -18 = 24 miles in (24 mi)/(12 mi/h) = 2 hours. Wanda will catch Hector at the finish line when she gets there after (42 mi)/(16 mi/h) = 2 5/8 hours, assuming Hector is still waiting.

You may want to discuss this question with your teacher to see if you are supposed to consider the practical domain of the equation you found.

Answer:

Move the decimal place to the right 2 places.

Step-by-step explanation:

If you are multiplying it is right and the opposite for dividing.