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sesenic [268]
3 years ago
14

These are samples of student work. Both students got the same answer, but did the work differently. Which student did the work c

orrectly?

Mathematics
1 answer:
Alchen [17]3 years ago
3 0

Answer:

Student B did the problem corectly

Step-by-step explanation:

Student a did 3*4 while student B did 3*3*3*3 which would equal 27

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Annie traveled 5 times the sum of the number of hours Brian traveled and 2. together they traveled 20 hours. find the number of
kari74 [83]
Well There isn't enough evidence to tell how many hours each of them worked. Yu stated how long they each traveled separately but did not state the amount of hours worked, or any proof for it.

But Assuming that by worked you mean traveled.
Annie traveled 5 times the sum of the number of hours Brian traveled and 2. together they traveled 20 hours. find the number of hours each person worked.So 20 is 6 times the number of hours Annie & Brian Worked + 10
(From the 10 extra hours Annie worked from +2)
10/6=1 hour and 40 min
So Brain worked/traveled for 1 hour and 40 minuets. 
Then we find Annie's time. Add 2 hours to 1 hour and 40 and you get
3 hours 40 times that by 5 and you get 18 hours and 20 min
So Annie worked/traveled for 18 hours and 20 min
I hope this helped
4 0
4 years ago
The percentage 21 is of 28 is equal to the percentage 30 is of 40<br> True?<br> or false?
katovenus [111]

Answer:

False

Step-by-step explanation:

75%

21

28 5.88

21 x 28

100

= 5.88

x 100% = 75%33.3333333333%

28 - 21

21

x 100% = 33.3333333333%

5 0
3 years ago
I need help remember taking the square root of a number is the inverse/opposite of squaring number
kirill [66]
X will equal 4 because 4^2=4*4 which equals 16
8 0
3 years ago
What is the measure of &lt; BCD ? Justify your answer.​
Likurg_2 [28]

Answer:

  • please mark brainlist please

Step-by-step explanation:

4π/3 radians. Triangle A B C has angles labeled as follows: A, (101x + 2) degrees; B, 34x degrees; C, unlabeled. The measure of ∠BCD is 120°. )

8 0
3 years ago
Ratio of boys to girls in a class of 27 is 1:2
kvasek [131]
9 boys and 18 girls
7 0
3 years ago
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