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2 years ago

Fill in the missing parts (1m=100 cm). 3.5m is % of 70 cm; 70 cm is % of 3.5m

Mathematics

2 answers:

yuradex [85]2 years ago

8 0

Answer:

3.5m is 500% of 70 cm and 70 cm is 20% of 3.5m.

Step-by-step explanation:

70 cm = 70cm/100= 0.7m

To solve the first problem use this equation:

3.5/0.7 *100 to get 500%

And to solve the second problem you use the same equation:

0.7/3.5*100 to get 20%

Hope this helps you.

Stolb23 [73]2 years ago

8 0

Answer:

3.5m is 500% of 70 cm and 70 cm is 20% of 3.5m.

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A population of n ????20 scores has a mean of???????? 15. one score in the population is changed from x ???? 8 to x ???? 28. wha

Dmitry_Shevchenko [17]

20 has been added to the total of scores, so the new mean for the 20 scores will be 20/20 = 1 higher than it was.

The new population mean is 15+1 = 16.

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2 years ago

What is 420/15 simplified to

Ghella [55]

So,

In order to simplify a fraction, we have to factor both the numerator and the denominator.
$\frac{420}{15} --\ \textgreater \ \frac{2*2*3*5*7}{3*5}$

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$\frac{2*2*7}{1}\ or\ 28$

3 0

3 years ago

Read 2 more answers

A basketball-player scores a free-throw with probability 0.9. What is the probability that her first miss occurs on the 6th shot

-BARSIC- [3]

Answer:

$Pr = 0.059049$

Step-by-step explanation:

Given

$p = 0.9$ --- probability of scoring

Required

Probability that his first miss is his 6th shot

Let q represent the event that he did not score.

Using complement rule:

$q = 1 - p = 1 - 0.9 = 0.1$

The event that his first miss is his 6th is represented as:

p p p p p q ---- That he scoress the first 5 attempts

So, the probability is:

$Pr = p^5 * q$

$Pr = 0.9^5 * 0.1$

$Pr = 0.059049$

7 0

3 years ago

Given that A, O & B lie on a straight line segment, evaluate <br>x<br>.

Afina-wow [57]

Answer:

Step-by-step explanation:

It is the same way:

we know that

if A , O and B lie on a straight line segment

then

∡AOY+∡YOZ+∡ZOB=180°

3x+x+x=180-----> 5x=180--------> x=180/5--------> x=36°

the answer is

x=36°

<em>please mark me as brainliest</em>

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2 years ago

Todd is 81 years younger than Rosa. 3 years ago, Rosa’s age was 4 times Todd’s age. How old is Todd now?

Delvig [45]

Let t represent Todd's age now.
.. 4(t -3) -(t -3) = 81 . . . . . . 3 years ago, their differnce in ages was 81.
.. 3t -9 = 81
.. t = (81 +9)/3 = 30

Todd is 30 now.

_____
You can also work this by considering "ratio units." 3 years ago, the ratio of their ages was 4:1, a difference of 3. That difference corresponds to 81 years, so each "ratio unit" represents 81/3 = 27 years. Todd's age then was 1 ratio unit, 27 years. Now, Todd's age is 30.

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3 years ago

Fill in the missing parts (1m=100 cm). 3.5m is ____ % of 70 cm; 70 cm is ____ % of 3.5m

Fill in the missing parts (1m=100 cm). 3.5m is % of 70 cm; 70 cm is % of 3.5m