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Katarina [22]
3 years ago
15

Ms. Cathy bought a package of pens. Out of every 10pens​, 9 are black. If there are 70 pens in the​ pack, what fraction of the p

ens in the pack are​ black? What percent of the pens in the pack are​ black.
Mathematics
1 answer:
cluponka [151]3 years ago
8 0

Answer:

the answer is 90 percent

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Look at the figure. Name the postulate or theorem you can use to prove the triangles congruent.
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Answer:

AAS Theorem

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angle ZVY ≅ angle WVY

angle VZY ≅ angle VWY

side VY shared by both triangles.

by Angle- Angle- SIde (AAS), the triangles are congruent.

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If a multiple-choice test consists of 5 questions, each with 4 possible answers of which only 1 is correct, (a) in how many diff
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The different ways can a student check off one answer to each question is 1024.

It is required to find the different ways can a student check off one answer to each question.

<h3>What is probability?</h3>

probability is the ratio of the number of favorable outcomes and the total number of possible outcomes. The chance that a particular event (or set of events) will occur expressed on a linear scale from 0 (impossibility) to 1 (certainty), also expressed as a percentage between 0 and 100%.

Given:

If a multiple choice test consists of 5 questions each with 4 possible answers of which only one is correct,

,To find  how many different ways can a student check off one answer to each question we have,

: 4^5 = 2^10

= 1024

Therefore, the different ways can a student check off one answer to each question is 1024.

Learn more about probability here:

brainly.com/question/11234923

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