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olchik [2.2K]
3 years ago
6

Janet's math test consists of 20 problems.For every incorrectly solved problem ,she subtracts 5 points. For every problem that s

he skips , she receives 0 points. Janet earned 13 points on the test. How many problems did Janet try and solve?
Mathematics
2 answers:
ehidna [41]3 years ago
4 0
23 kasi 20-5=15+13=23 yan lang alam ko HAHAHAHA
gogolik [260]3 years ago
3 0

Answer:

So, lets go to the first posible number that ends in 8 and is multiple of 8 and greater than 16. This is 48. 48 = 6*8, this is, lets think about 6 correct answers that sum 48 points.

We now need to subtract a number to 48 that gives us 13. Which is?

48 - x = 13 <----> x = 35

So, we need a number of incorrect answers that sum 35. As every wrong answer sums 5 points, we need 7 wring answers (7*5 = 35):

8*6 - 5*7 = 48 - 35 = 13 points!!

There were 14 problems tried to solve

Step-by-step explanation:

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3 0
3 years ago
Which expression is equal to the expression (7•2)^7 a. 9^7 b. 7^7•2^7 c. 7^7 2^7 d. 7•(7•2)
Keith_Richards [23]
(7\cdot2)^7=7^7\cdot2^7\to\fbox{b.}
5 0
3 years ago
Read 2 more answers
ANSWER ASAP The questions on a multiple-choice test each have 5 answer choices.
Len [333]

Answer:

F, spinning a spinner with five equal sections

Step-by-step explanation:

The probability of something is (the ways to acheive the wanted outcome / all possible situations)

For example, the probability of getting heads on a coin flip is (1 possible way to get heads / 2 possible outcomes) = 1/2, or 50/50

Now, onto the problem.

There is only one way to get the answer right, and 5 possible situations. So, the probability of getting the question right would be 1/5.

F) Spinning a spinner with five parts means that you have: 1 way to get the right section, and 5 possible outcomes. So, the probability of getting the right section would be 1/5. So, this answer is correct.

G) Flipping a coin five times: Each time, you have a 1/2 chance of the coin landing on the desired side. So, this would not be an accurate comparison.

H) Spinning a spinner with four equal sections: There is one way to land on the desired section, and 4 possible outcomes. So, the probability of this simulation is 1/4, so this answer is incorrect.

I) Rolling a number cube labeled one through six times: Each time, there is one way to land on the number you want, while there are six possible outcomes. So, the probability of getting your desired number is 1/6, which is incorrect.

I hope this helps! Feel free to ask any questions!

7 0
3 years ago
Help me I really need to get this done
posledela

Answer:

It’s the second one

Step-by-step explanation:

6 0
3 years ago
Can anybody do these for me hurry ?
Damm [24]

Answer:

- Mode-The most repetitive number.

- Median:The number in the MIDDLE when they are IN ORDER.

- Mean- The AVERAGE OF ALL NUMBERS: You add up all the numbers then you divide it by the TOTAL NUMBER of NUMBERS.

- Range - THE BIGGEST minus the Smallest.

Step-by-step explanation:

;)

8 0
3 years ago
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