MATHEMATICS MIDDLE SCHOOL

There were some ducks in a pond. Twenty-eight ducks flew away . Seven more arrived at the pond. Now there are 43 ducks in the pond. How many ducks were in the pond to start? How did you find the answer 64

Answers

Answer 1
Answer: 43 - 7 = 36
36 + 27 = 63

There were 63 ducks at the start.

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Write the fraction or mixed number as a money amount , and as a decimal in terms of dollars. 65/100

Elena works out on a treadmill. She uses a program that combines running and walking. She knows that she runs at 0.2 miles per minute and she walks at 0.1 miles per minute. At the end of her workout, the treadmill showed her workout distance was 8 miles.

Answers

There’s no question how are we supposed to answer? Lol

Answer:

040 is the answer

Step-by-step explanation:

Grady marks down some $2.49 pens to $1.99 for a week and then marks them back up to $2.49. Find the percent of increase and the percent of decrease to the nearest tenth. Are the percents of change the same for both price changes? If not, which is a greater change

Answers

$2.49 -------------------100 %
$1.99 ------------------- x %
-------------------------------------
2.49 : 1.99 = 100 : x
x = ( 1.99 * 100 ) / 2.49 = 79.9 %
100 % - 79.9 % = 21.1 % ( Decrease )
$1.99 -------------------- 100 %
$2.49 -------------------- x %
------------------------------------
1.99 : 2.49 = 100 : x
x = ( 2.49 * 100 ) / 1.99 = 125.1 %
125.1 % - 100 % = 25.1 % ( Increase )
The percents of change are not the same.
The greater change is during the increase of price ( 25.1 % > 21.1 % ). 

Maria plants 8 tulip bulbs. she gives 3 of the tulip bulbs to her neighbor. what fraction of her tulip bulbs does Maria give to her neighbor?

Answers

   3
-------
   8

OBS:(3 em cima e 8 em baixo)
It is

3
------
8
Hope this helped

Need help on all three questions 30 pointss

Answers

#6. C
#7. B
#8. B
(I know the questions dont have indicating letters but I used letters to shorten my answer, I'm sure you can understand it)

Can someone answer this question?

Answers

Answer:

You're correct, it's 7.5!

Step-by-step explanation:

15% is still 15/100. So, if you to divide 100 by 2 to convert it to 50, then you divide 15 by 2 as well! And the answer to that is 7.5.

Answer my question please

Answers

Answer:

4500 feet

Step-by-step explanation:

Unit Conversion used:

            1 yard = 3 feet

Unit multipliers used:

(30 laps)/(1 week)

(25 yards)/(1 lap)

(3 feet)/(1 yard)

The unit multipliers are set up in such a way that when they are multiplied with eachother, the initial unit of “weeks” gets cancelled out and the final answer is assigned the units of  “feet”

∴Total distance he swam during =  (2 weeks) × ((30 laps)/(1 week)) × ((25 yards)/(1 lap)) × ((3 feet)/(1 yard))

  hiswinter break                         = 4500 feet
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