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Bogdan [553]
3 years ago
12

The grade 7 class was given a quiz with 36 questions. The average score was 83.3%. On average, how many questions did students a

nswer correctly?
Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
5 0
Answer: 30 questions answered correctly
30/36x100=83.3
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Is A’B’C’ congruent to ABC explain why or why not
Pachacha [2.7K]

Answer:

Is there a picture?

Step-by-step explanation:

please add a picture. You can also see if the transition is congruent by counting

3 0
3 years ago
the combination for a lock is a 3 didget number the didgets are the prime factors of 42 listing from least to greatest what is t
zhannawk [14.2K]
42 = 2 * 3 * 7

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3 years ago
The plutonium isotope has half life
ratelena [41]

Answer:

Step-by-step explanation:

The different isotopes have different "half-lives" – the time it takes to lose half of its radioactivity. Pu-239 has a half-life of 24,100 years and Pu-241's half-life is 14.4 years. Substances with shorter half-lives decay more quickly than those with longer half-lives, so they emit more energetic radioactivity.

6 0
3 years ago
PLEASE HELP WITH #3 i’ll give brainliest
tekilochka [14]

Step-by-step explanation:

Lets begin with this 4x-25=x+14, 3x=39, so x=13, than we plug it in to side NP because that is the most simple one to plug it into to and that side is 27 since the triangle is equilateral all sides are the same so it is 27, 27, 27, for the sides and x=13

4 0
3 years ago
I need help with slope (8th grade)
Triss [41]

Answer:

(y1-y2)/(x1-x2)

Step-by-step explanation:

if you have two points from the graph then you can use them to find the slope, for example:

(2,3) and (0,5)

you would take the first point and put it in a fraction (and the second point) but the x goes on the bottom and the y goes on the top:

3/2 and 5/0

Next you put them together minusing one of the equations, but make sure that the two coordinates line up (it doesn't matter which one, in the order):

3-5/2-0

Then you solve:

-2/2

-1

which means that -1 is the slope for this

(the "/" is a fraction bar, in case you didn't already know that)

5 0
3 years ago
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