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Igoryamba
3 years ago
7

15 POINTS AND BRAINLIEST ANSWER!!

Mathematics
2 answers:
lisov135 [29]3 years ago
6 0
Copper: density ≤ 3.4 
Iron: density=2.26

Before: 200 t
After: 800 t
Ede4ka [16]3 years ago
3 0

Answer:

density of iron is 7.8g/cm cubed

density of copper is 8.3g/cm cubed

Step-by-step explanation:

density =mass/volume

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I needed help but then i found the answer
Alenkinab [10]

1/2 × 5 2/3 × 3 = 5

the 2's cancel giving you 5 × 1/3 × 3

then the 3's cancel giving you 5 × 1

and 5 × 1 is 5.

4 0
2 years ago
The area of a 25 inch TV screen is 300 in.². The area of a 40 inch TV screen is 768 in.². The area of the smaller screen is what
Rina8888 [55]

Answer:

39.0625%

Step-by-step explanation:

The area of a 25 inc TV screen is 300in²

The area of a 40 inch TV screen is 768in²

Percentage of area of the smaller screen to larger screen is;

300/768 × 100 = 39.0625%


5 0
3 years ago
The cost C (in dollars) of making n watches is represented by C = 15n + 85 .
AURORKA [14]
So the answer should be 48.58 if not then it could be 278n
5 0
3 years ago
Answer the following question: Melissa was collecting
emmasim [6.3K]

Answer:

1,280

Step-by-step explanation:

5 0
2 years ago
What is the lead coefficient of the polynomial below?<br> 3x^2+ 8x + 5
galben [10]

Answer:

The lead coefficient is 8

Step-by-step explanation:

This is because it is the biggest number that is right before the x or that is the coefficient.

4 0
3 years ago
Read 2 more answers
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