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nekit [7.7K]
3 years ago
13

Help me pleaseeeeeeeeeeeeeeee

Mathematics
2 answers:
MrMuchimi3 years ago
4 0
The correct answers are


a) 40%

b) 30%
timama [110]3 years ago
4 0

Answer:

First one: 40%

Second one: 30%

Step-by-step explanation:

2/5 is equal to the fraction 4/10 which is also equivalent to 40/100

in a percentage that would be 40% of the dogs are poodles

 

to find a percentage divide numerator by demonimator and multiply by 100

so divide 12 by 40 and multiply by 100

12/40=0.3

0.4x100=30%

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The first time a census was taken in Esinville, the population was 12,621. Each year after that, the population was about 6% hig
Sedbober [7]
Step-by-step
Population was 12.621 when it was measured

Next year it rose by 6%, so add that 6% to 100% and multiply with population measured

12.621 × (100%+6%) = 12.621 × 106% = 13.379,24

Since a man cant be 0,24, we count that as +1

13.379,24 = 13.379 + 1 = 13.380

That was for a year after measurement, now let's calculate for another year
Now, add those 6% to a new population number

13.380 × (100%+6%) = 13.380 × 106% = 14.182,8

since 0,8 isn't a man, instead we add again +1

14.182,8 = 14.182 + 1 = 14.183

now let's do it for another year after last, by adding those 6% to a newest population number

14.183 × (100%+6%) = 14.183 × 106% = 15.033,98

round it again to +1, since 0.98 isn't a man

15.033,98 = 15.033 + 1 = 15.034

that is it, now graph is in the picture.

8 0
3 years ago
Elio makes candles that are 14 cm tall. Each candle burns 8 hours before going out. He is wondering how many hours a 21 cm tall
MAXImum [283]
Elio is right in assuming the relationship between the height and the hours it burns is proportional.

Find the unit rate

14 ÷ 8 = 1.75 cm/h

Divide

21 ÷ 1.75 = 12

You can set this up as an algebraic equation to check the answer.

If the candle is 21 cm tall, it will burn for 12 hours.

Hope this helped you! :)
8 0
3 years ago
Suppose the contestants were asked to make two batches of their recipes instead of one batch. Would the value for the amount of
kirill [66]

Answer:

  yes

Step-by-step explanation:

If all contributors to the distribution are doubled, the value of any particular item in the distribution will be double what it was. That is, it will be different.

4 0
3 years ago
Find the critical value tc for the confidence level c=0.98 and sample size n=18
Mariulka [41]

Answer step-by-step explanation:

We know that the critical t value for a 98% confidence level for a sample of size n = 18:

Finding degrees of freedom (n-1) = 17

-search the information in table t for 0.98 and find that t = 2.567

6 0
3 years ago
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siniylev [52]
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