1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
satela [25.4K]
3 years ago
9

Przeciętny orzeł waży 1,68 kg, a przeciętny wróbel - 25 g. Mózg orła waży 14 g, a mózg wróbla - 1 g. Oblicz, jakim procentem mas

y każdego z tych ptaków jest masa jego mózgu.
Mathematics
1 answer:
suter [353]3 years ago
6 0

Answer:

Eagle - 0.83%

Sparrow - 4%

Step-by-step explanation:

1. On average, the weight of the eagle is 1.68 kg. Its head weighs 14 g.

Then

1.68 kg = 1,680 g - 100%

14 g - x%

Write a proportion:

\dfrac{1,680}{14}=\dfrac{100}{x}

Cross multiply:

1,680x=1,400\\ \\x=\dfrac{1,400}{1,680}=\dfrac{70}{84}=\dfrac{10}{12}=\dfrac{5}{6}\approx 0.83\%

2. On average, the weight of the sparrow is 25 g. Its head weighs 1 g.

Then

25 g - 100%

1 g - x%

Write a proportion:

\dfrac{25}{1}=\dfrac{100}{x}

Cross multiply:

25x=100\\ \\x=\dfrac{100}{25}=4\%

You might be interested in
Which net matches the solid figure shown below?
gayaneshka [121]

Answer:

the answer is A

Step-by-step explanation:

hope this help

7 0
3 years ago
Read 2 more answers
Which of the following terms can be combined in this expression? -13 - x/5 + 6.2y + 20.5x - 3/8y
dsp73
C. 6.2g can be combined with -3/8y. This is because they both end in ‘y’.
3 0
3 years ago
Read 2 more answers
2x^2 -19x + 35 =0<br> Factor
nignag [31]

Answer:

Step-by-step explanation:

3 0
3 years ago
(−1)^3⋅(−1)^2<br> simplify
Nastasia [14]
When simplified the answers results in
= -1
8 0
2 years ago
Samuel is six inches taller than his brother Elijah.if Samuel is 48 inches tall,how tall is Elijah
GarryVolchara [31]

Answer:

If Samuel is 6 inches taller than Elijah and he is 48 inches tall then Elijah is 42 inches tall.


7 0
3 years ago
Read 2 more answers
Other questions:
  • An open-top box is formed by cutting squares out of an 11 inch by 17 inch piece of
    11·1 answer
  • zoey is making bracelets for her friends. each bracelet takes 5/6 foot of string.how much string will zoey need to make 12 brace
    13·1 answer
  • F(x)=x2+5x-1 is shifted 3 units left the result is g(x) what is g(x)?
    8·1 answer
  • Is 2/5 less than 1/2
    8·2 answers
  • Help me please it is important
    14·1 answer
  • 2. 3x + 2y = 22<br> 5x – 2y = 42
    6·2 answers
  • Hey i need this done in 15 pls help giving 25 points
    15·1 answer
  • 11 cm<br> x cm<br> 4 cm<br> 8 cm
    8·1 answer
  • Please help I’ll give Brainly pleas
    13·2 answers
  • There must be fewer than 5 fish in the small aquarium. There are already 3 fish in the aquarium.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!