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yaroslaw [1]
3 years ago
11

If 2/7 of the animals at a zoo are birds and 1/8 of the birds are flamingos, what portion of the animals at the zoo are flamingo

s?
Mathematics
2 answers:
alex41 [277]3 years ago
7 0
It says it in the question does it not?
Natalka [10]3 years ago
6 0
To answer this, we must do 7 times 8.
7 times 8 = 56. Then we divide this by 2 because 2/7 of the animals at the zoo are birds. 56 divided by 2 = 28.
In conclusion, 1/28 of the animals at the zoo are flamingos. I would really appreciate it if I could get brainliest! Thanks! =D
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What single decimal multiplier would you use to increase by 18% followed by a<br> 12% decrease?
ValentinkaMS [17]

Answer:

The single decimal multiplier used to increase by 18% followed by a  12% decrease is 0.21.

Step-by-step explanation:

Let 'x' be the number

As first the number has to be increased by 18%

so

Step 1: write the percentage '18%' in decimal form

18% = 0.18    

Step 2: For percentage increases: add the decimal to 1

1 + 0.18 = 1.18    

Step 3: Multiply the number x by the multiplier, found in Step 2

x × 1.18 = 1.18x

<u><em>NEXT WE HAVE TO DECREASE 1.18x by 12%</em></u>

Apply the same method but with a number 1.18x

  • Write the percentage '12%' in decimal form

12% = 0.12

  • For percentage decreases: subtract the decimal to 1

1 - 0.18 = 0.18

  • Multiply the number 1.18x by the multiplier, found in Previous step

1.18x × 0.18 = 0.21x

Therefore, the single decimal multiplier used to increase by 18% followed by a  12% decrease is 0.21.

7 0
3 years ago
A designer builds a model of a sports car. The finished model is exactly the same shape as the original, but smaller. The scale
lesantik [10]

Answer:

Ratio = 2 : 15

Step-by-step explanation:

Given

k = 2 : 15 --- scale factor

Required [missing from the question]:

The ratio of width of the model to the original

From the question, we understand that the scale factor is: 2 : 15

The ratio of the width of the model to the original equals the given scale factor i.e.

Ratio = 2 : 15

8 0
2 years ago
Ok I rlly need help with this question it’s rlly hard for me there’s a picture to show —&gt; helppp
Whitepunk [10]

Answer:

x=20; vertical angles theorem

Step-by-step explanation:

hi! we can use the vertical angles theorem for this. vertical angles are congruent to each other, meaning they are the same amount of degrees. so, we can set 2x+10 and 50 equal to each other.

2x+10=50

2x=40

x=20

x=20 because of the vertical angles theorem.

8 0
3 years ago
Find the surface area of the pyramid.
Sphinxa [80]

SA= a+1/2(p)(h)

SA= 18+1/2( 18)(5.2)

SA= 18+46.8

SA=64.8

4 0
3 years ago
Find the surface area of the right square pyramid. Round your answer to the nearest hundredth.
jekas [21]

Answer:

A. 176

Step-by-step explanation: First, to find the surface area to each triangle, you multiply the base times the height by 1/2. It is 28 for each triangle. Multiply that by 4, and you get 112. Then, the surface area of the square on bottom is 64. When added together, you get 176. No rounding needed. Hope it helped and is correct!

7 0
3 years ago
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