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garri49 [273]
3 years ago
15

A fraction changes from​ 3/4 to​ 4/10. The numerator changed by​ _____%; the denominator changed by​ _____%; the value of the fr

action changed by approximately​ _____%.
Mathematics
1 answer:
Korvikt [17]3 years ago
4 0
The change from 3/4 to 4/10 is found by obtaining and applying the LCD:

15/20 to 8/20 is a negative change, and the amount of the change was -7/20.

We compare this result to the original value, 15/20, to obtain the percentage change in the fraction:

   -7/20
----------- = -7/15 = -0.467  =>  -46.7%
   15/20
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The Environmental Club at a school has decided to plant bulbs, bushes, and trees in the spring. Each hallway has a flatbed for d
expeople1 [14]

Answer:

Step-by-step explanation:

Given:

Hallway A:

1/10 bulbs

2/10 small bushes

7/10 tree seedlings

Hallway B:

2/10 bulbs

1/10 small bushes

7/10 tree seedlings.

Total flatbed of tree seedlings = flatbed of tree seedlings in hallway A + flatbed of tree seedlings in hallway B

= 7/10 + 7/10

= 14/10

= 1 × 2/5 flatbed of tree seedlings

3 0
3 years ago
Round 290300 to the nearest hundred thousand
SSSSS [86.1K]

Answer:

300,000

Step-by-step explanation:

you have 290 for the first three numbers the 9 is above 5 making the numbere infront of it go up so it would be 300,000

1-5 stays the same and 6-9 go up.

My growing brain on yt has a good ecpelantion if you need more help.

Title of the video Rounding to the Nearest Hundred Thousand / My Growing Brain

6 0
3 years ago
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The total cost after tax to repair Keisha’s iphone is represented by the expression 0.09(75h) + 75h, where h represents the numb
elena55 [62]

the part where it says after tax to repair keishas iphone is represented by the expression 0.09


8 0
3 years ago
Suppose that the amount of algae in a pond dobles every 6 hours. If the pond initially contains 50 ponds of algae, how much alga
Vikki [24]
Well we know the algae doubles three times.
So take 50 x 2 = 100
take 100 x 2= 200
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So the answer is A
5 0
3 years ago
Can u guys help me please dont steal or guess ( will give brainiest for proof)
Novay_Z [31]

Answer:

30 feet

Step-by-step explanation:

To find the distance use a trigonometric ratio. Since we are looking for the hypotenuse and we are given the opposite side we will be using the ration of sine. We can set up the equation like this by using x as the measure we are looking for.

Sin of x=Opposite leg/Hypotnuse

Sin of 30= 15/x

Multiply by x and then divide by Sin of 30 to isolate the x.

x=15/Sin of 30

Plug it in to a calculator.

x=30

4 0
3 years ago
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