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suter [353]
2 years ago
9

Determine the area of the composite figure below

Mathematics
1 answer:
MrRa [10]2 years ago
5 0

Answer:

  • 2772 cm²

Step-by-step explanation:

<u>Work:</u>

  • 2(π x 21 x 21/2) + (π x 42 x 42/4) = Area of figure
  • => π x 21 x 21 + (π x 42 x 42/4) = Area of figure
  • => (22/7 x 21 x 21) + (22/7 x 21 x 21) = Area of figure
  • => 2(22/7 x 21 x 21)
  • => 2(22 x 3 x 21)
  • => 2772 cm²

Hence, the area of the shape is 2772 cm².

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I have a stamp collection. 70% of my stamps are Canadian and 30% are international. I have 500 more Canadian stamps than interna
shutvik [7]

Answer: N= 375, C= 875

Step-by-step explanation:  Let Canadian stamps=C

Let International stamps=N

C=875     and        N=375

 

C - 500=N,  .70(N + C) =C

Solve the following system:

{C-500 = N |     (equation 1)

0.7 (C+N) = C |     (equation 2)

Express the system in standard form:

{-N+C = 500 |     (equation 1)

0.7 N-0.3 C = 0 |     (equation 2)

Add 0.7 × (equation 1) to equation 2:

{-N+C = 500 |     (equation 1)

0 N+0.4 C = 350 |     (equation 2)

Divide equation 2 by 0.4:

{-N+C = 500 |     (equation 1)

0. N+C = 875. |     (equation 2)

Subtract equation 2 from equation 1:

{-N+0 C = -375. |     (equation 1)

0 N+C = 875. |     (equation 2)

Multiply equation 1 by -1:

{N+0 C = 375. |     (equation 1)

0 N+C = 875. |     (equation 2)

Collect results:

Answer: |  N = 375        and             C=875

3 0
3 years ago
Think about converting 48% to an equivalent fraction in reduced form. If the denominator is 25, what is the numerator?
bulgar [2K]

Answer:

the numerator is 12

Step-by-step explanation:

since 48 is a percent, it would be put as 48/100 as a fraction. since both the numerator and denominator are divisible by 4, you can reduce the fraction into 12/25. Since the question is asking what the numerator was when the denominator was 25, the answer is 12.

8 0
3 years ago
Your classmate is telling you how they plan to become financially secure.
bogdanovich [222]

Answer:

C: Both saving and investing

Step-by-step explanation:

You need to save money in order to have money to invest

3 0
2 years ago
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marissa [1.9K]

Answer

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Explanation:

Congruence of these two angles directly implies p||q.

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3 years ago
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Flura [38]
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314 × 4 = 1256

Another way of solving it:

Total amount of miles ÷ miles per day = The amount of days.

1256 ÷ 314 = 4
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3 years ago
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