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olga55 [171]
3 years ago
15

Which of the following statement is not true?

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
8 0

Answer:

integers are closed under division

Step-by-step explanation:

Integers are not closed under division.Let us consider two integers i and j.

Then \[\frac{i}{j}\] need not necessarily be an integer. For example, 2 and 3 are integers but \[\frac{2}{3}\] is not an integer. So the first option , namely, integers are closed under division is not true.

On the other hand, the remaining three options given are correct.

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nick have collection of 80 cars.3/5 of his toys are bus.the rest are cars and bike.the number of cars are the three time the num
stiks02 [169]

Answer:

24 cars

Step-by-step explanation:

out of 80 toys, 3/5 are buses- 80 * 3/5 is 48 so there are 48 buses

80 - 48 is 32, 32 of the rest of the toys are cars and bikes

we know that there are 3 times as many cars than bikes, so to find out how many cars and bikes there we can do 3n + n, where n is the number of bikes it also equals 4n

32 = 4n; n = 8

there are 8 bikes, so there are 24 cars

8 0
3 years ago
Barnaby decided to count the number of ducks and geese flying south for the winter. On the first day he counted 175 ducks and 63
olga_2 [115]

Answer:

13,125 ducks

Step-by-step explanation:

The ratio of ducks:geese on the first day was:

175:63

On the last day (end of migration), he counted 4,725 geese.

To find the number of ducks using the same ratio, we are first going to divide 4,725 by 63 to find what number all the ducks and geese multiplied by:

4,725/63 = 75

The geese multiplied by 75. This means the ducks also multiplied by 75:

175*75 = 13,125

Barnaby counted 13,125 ducks.

Hope it helps (●'◡'●)

7 0
3 years ago
Read 2 more answers
9.
Contact [7]

a = 640s

a = 640(7.5)

a = 4800 \:

She owns 4800 acres.

5 0
3 years ago
Read 2 more answers
What expressions are less than 95
inna [77]

Answer:

B

Step-by-step explanation:

A 23.5*5=117.5> 95

c 95*1=95

so it is B

6 0
4 years ago
a furniture company currently produces 5800 chairs per month. If production decreases 5%, find the amount of the decrease and th
Paraphin [41]

Answer:amount of decrease 290 ;numbers of chairs 5510

Step-by-step explanation:

Stablish the proportion 5800/100%=x/5% then solve for x. ; x=(5%/100%)*5800 = 290 which is the decrease. Then make the difference 5800-290 and you get 5510

4 0
3 years ago
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