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natta225 [31]
3 years ago
14

Please help i will mark brainliest

Mathematics
2 answers:
WINSTONCH [101]3 years ago
5 0

Answer:B

Step-by-step explanation:

3.1x10^9 is putting 9 zero’s behind the 3.1

move the decimal point over 9 spaces which will leave you with 3,100,000,000

= 3.1 Billion

timofeeve [1]3 years ago
5 0
B) 3.1 x 10 exponent 9
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Translation by moving the two shapes to the same points you can verify its congruence. 
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3 years ago
40% of the students passed both exams. 80% of the students passed the second exam. how many students (in percent) who passed the
navik [9.2K]

50%. students (in percent) who passed the second exam also passed the first exam.

Let's imagine that there are 100 kids in the teacher's class. We know that 40 of them passed BOTH tests, and 80 passed the second test.

Because if they weren't, they wouldn't have passed the first test and consequently wouldn't have passed both, we can be sure that the group of students who passed BOTH tests is only made up of the 80 who passed the second test.

Thus, both tests were passed by 40 of the 80 pupils who passed the second one:                                      

40/80 = 1/2 = 50%.

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7 0
1 year ago
PLEASE HELP!!!! 20 POINTS!!!
Vlad1618 [11]
Mass = density* volume
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6 0
3 years ago
Is 6+2 +4x equivalent to 6- ( 2-4x) . if not , why not ?
Xelga [282]
Well lets solve for both.
6 + 2 + 4x
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Now solve the other one.
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Distribute.
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These equations are not equivalent because instead of adding two, like in the first one, the second problem is subtracting. So you get 8 + 4x and 4 + 4x. I hope this helps love! :)
6 0
3 years ago
Camilla makes and sells jewelry. she has 8,160 silver beads and 2,880 black beads to make necklaces. Each necklace will contain
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8160 dived by 85 equals 96, 2880 divided by 30 equals 96, therefore she can make 96 necklaces
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3 years ago
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