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Agata [3.3K]
3 years ago
11

I NEED HELP SO BAD PLEASE!!!!!!!!!!!

Mathematics
2 answers:
inysia [295]3 years ago
8 0

Answer:

I think its 6 :)

Step-by-step explanation:

Alexeev081 [22]3 years ago
6 0

Answer:

4

Step-by-step explanation:

i guess

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The four digit numeral 3AA1 is divisible by 9. What digit does A represent
dexar [7]

Answer:

A = 2, the number is 3221

Step-by-step explanation:

In order for the number to be divisible by 9, the sum of it's digit has to be divisible by 9.

In our case, 4+A+A+1= 9k where k is an integer. the easiest way happens when k=1

5+2A= 9 \rightarrow 2A=4 \rightarrow A = 2

Higher values of k will likely most work (with k=2 you get A to be a non-integer, which can't work since it's the digit of a number, and with higher values of K you're not getting a number in base 10.

4 0
2 years ago
The digits 1-5 are used for a set of locker codes. Suppose the digits cannot repeat. Find the number of possible two digit and t
Archy [21]
So you would do
5×4×3= 60
and
5×4=20
so, for a 3 digit code there are 60 possibilities and for a 2 digit code there are 20 possibilities.
7 0
3 years ago
Read 2 more answers
Maya is helping a gardener plant 300 bulbs. They plant 20% of the bulbs on Monday and 30% of the bulbs on Tuesday. Maya says thi
Katyanochek1 [597]

Answer:

because the total is 300 not 100 so 50 is not reasonable because that is the percentage they planted and since it is more than 100 then it should be a percent of 300 not 100. Maya is wrong about placing 50 bulbs instead they placed 150.

Step-by-step explanation:

8 0
3 years ago
Combined, Teresa and Janey have saved $345 dollars. Teresa has saved twice as much as Janey. How much money do they each have?
Tema [17]

Answer: Janey has $115, and Teresa has $230.

Step-by-step explanation:

Set x be the money that Janey have, then Teresa have 2x.

x + 2x = 345

      3x = 345

         x= $115

2x= 2(115)= $230

6 0
3 years ago
8. Find the perimeter of AABC. Round your answer to the nearest tenth.​
hodyreva [135]

Answer:

12.3

Step-by-step explanation:

6 0
3 years ago
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