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2 years ago

Please answer ASAP Thank you so much!!!!!!

Mathematics

1 answer:

agasfer [191]2 years ago

8 0

Answer:

okfjfjfc jddjtrfi jdfif

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10. A bell rings every 25 minutes while another bell rings every 40 minutes. If the bells rang together at 6 A.M., at what time

Ivahew [28]

Answer:

9:20 A.M.

Step-by-step explanation:

Let's list out the points at which the 25-minute bell rings:

25 mins, 50 mins, 1 hour 15 mins, 1 hour 40 mins, 2 hours 5 mins, 2 hours 30 mins, 2 hours 55 mins, 3 hours 20 mins

Next let's list out the points at which the 40-minute bell rings:

40 mins, 1 hour 20 mins, 2 hours, 2 hours 40 mins, 3 hours 20 mins

From the lists above we see a common multiple of 3 hours and 20 minutes.

So, to find what time they ring after 6 A.M. add 3 hours and 20 minutes to it.

6 AM + 3 hours and 20 minutes = 9:20 A.M.

Thus, both bells would ring together again at 9:20 A.M.

Hope this helps!!

8 0

2 years ago

Can some one please answer these questions I will give you a brainliest

solniwko [45]

2×2=4 ( for one face)
so there r 6 faces = 6×4=24 square inches

5 0

3 years ago

Read 2 more answers

Just before a referendum on a school budget, a local newspaper polls 402 voters to predict whether the budget will pass. Suppos

Sliva [168]

Answer:

21.21%

Step-by-step explanation:

Assume that proportion of support follows normal distribution.For resulting in defeat the proportion of support should less than 0.5.Given that the proportion of support is p= 0.52.

Sample size(n)= 402

We know that standard deviation is given as

$\sigma = \sqrt {\dfrac {p(1-p)}{n}}$

Now by putting the values

$\sigma = \sqrt {\dfrac{0.52\times 0.48}{402}}$

σ=0.0249

Proportion of support follows normal distribution with mean is 0.52 and standard deviation is 0.0249

We know that $Z=\dfrac{\bar{X}-\mu }{\sigma }$

$Z=\dfrac{0.5-0.52 }{0.0249}$

Z= -0.80

So P(Z<-.80) =0.2118 from standard table.

So the probability of news paper to predict defeat is 21.21%

7 0

3 years ago

Funique513<br> tt<br> insta<br> twitter<br> follow for points I follow back too

hichkok12 [17]

I couldn’t find you on Inst. M’I missing something?

3 0

3 years ago

Read 2 more answers

If P is the incenter of JKL, find each measure

d1i1m1o1n [39]

Answer:

Its really simple look it up at some site

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3 years ago