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Phantasy [73]
2 years ago
14

For one Biology test, Peter correctly answered 12 questions. These correct answers gave him a percent score of 50%. In total, ho

w many questions were on this Biology test? Round your answer to the nearest whole number if necessary.
Mathematics
1 answer:
maksim [4K]2 years ago
8 0

Answer:

24

Step-by-step explanation:

peter answer 24 which 12 he got right that he got 50% so that half of the questions so another half would be 12

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I need help pls pls I will really appreciate it also l need it step by step pls l will mark you the brainly! pls help!
PIT_PIT [208]

Answer:

1. 8.5

2. 6.7

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Step-by-step explanation:

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4 0
3 years ago
Tessellations
ser-zykov [4K]

Answer:

B. Y-axis

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
In how many different ways can you answer a multiple choice test that has 5 questions and 3 choices for each answer?
GarryVolchara [31]

Answer:

243

Step-by-step explanation:

If there is one question that has three choices a1, a2, and a3, then there will be 3 i.e. 3¹ different ways of answering which are a1 or a2 or a3.

If there are two questions that have answer choices a1, a2, a3 and b1, b2, b3 then there will be 9 i.e. 3² different ways of answering which are a1-b1, a1-b2, a1-b3, a2-b1, a2-b2, a2-b3, a3-b1, a3-b2, and a3-b3.  

Similarly, when there are 5 questions that have three choices each, then there will be 3⁵ i.e. 243 ways of answering options. (Answer)

3 0
3 years ago
What would I have to do here? Somebody please help me! (Look at the bottom problem not the top)
Zinaida [17]
Alright, let's do this! If $25 is one fifth of how much the game system cost then, multiply 25 times 5. And you should get your answer. 
I hope this helps. 
8 0
3 years ago
If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?
tia_tia [17]

Answer:

There are two complex roots.

Step-by-step explanation:

When the discriminant is a negative number, the parabola will not intersect the x-axis. This means that there are no solutions/two complex solutions.

4 0
3 years ago
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