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3 years ago

7

Choose the missing number. 36 x ____ = 7,200

2 answers:

Lyrx [107]3 years ago

6 0

Answer:

200

Step-by-step explanation:

Basile [38]3 years ago

3 0

Answer:

090488478493847387884848 so over all mc+mc4 = mc2

Step-by-step explanation:

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Maisha has 3(x+2) hours reading a book 8x-5 hours sleeping and 2x hours playing.How many hours did she spend in all of these act

Mandarinka [93]

Add all the activities together

=3(x+2) + (8x-5) + 2x
multiply 3 by all in parentheses
=(3*x) + (3*2) + (8x-5) + 2x
=3x + 6 + 8x - 5 + 2x
combine like terms
=(3x + 8x + 2x) + (6 - 5)
=13x + 1

ANSWER: 13x + 1

Hope this helps! :)

6 0

3 years ago

You roll a 6 sided dice what is the probability of rolling a number greater than two and then rolling a number less than three

Alexandra [31]

First answer is 4 chances and second answer is 2 chances

5 0

3 years ago

In a two-digit number, the tens digit is 5 less than the units digit. The number itself is five more than three times the sum of

Luden [163]

Given:

In a two-digit number, the tens digit is 5 less than the units digit.

The number itself is five more than three times the sum of its digits.

To find:

The number.

Solution:

Let the two digit number is ab. So,

$ab=10a+b$

Tens digit is 5 less than the units digit.

$a=b-5$ ...(i)

The number itself is five more than three times the sum of its digits.

$10a+b=3(a+b)+5$

$10a+b=3a+3b+5$

$10a+b-3a-3b=5$

$7a-2b=5$ ...(ii)

Using (i) and (ii), we get

$7(b-5)-2b=5$

$7b-35-2b=5$

$5b=5+35$

$5b=40$

$b=8$

Putting b=8 in (i), we get

$a=8-5$

$a=3$

Therefore, the required number is 38.

5 0

3 years ago

Read 2 more answers

A consumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips, etc.). While

Murljashka [212]

Answer:

The expected number of appearance defects in a new car = 0.64

standard deviation = 0.93(approximately)

Step-by-step explanation:

Given -

7% had exactly three, 11% exactly two, and 21% only one defect in cars.

Let X be no of defects in a car

P(X=3) = .07 , P(X=2) = .11 , P(X=3) = .21

P(X=0 ) = 1 - .07 - .11 - .21 = 0.61

The expected number of appearance defects in a new car =

E(X) = $\nu$ = $= \sum X P(X) =3\times 0.07 + 2\times0.11 + 3\times0.21 + 0\times0.61$ = 0.64

$\sigma^{2}$ = variation of E(X) = $\sum (X - \nu) ^{2}P(X)$ = $(3 - 0.64) ^{2}\times0.07 + (2 - 0.64) ^{2}\times0.11 + (1 - 0.64) ^{2}\times0.21 + (0 - 0.64) ^{2}\times0.61$

= $(2.36) ^{2}\times0.07 + (1.36) ^{2}\times0.11 + (.36) ^{2}\times0.21 + ( 0.64) ^{2}\times0.61$ = 0.8704

standard deviation = $\sqrt{\sigma^{2}}$ = $\sqrt{0.8704^{2}}$ = 0.93(approximately)

4 0

3 years ago

No clue how to do this someone please help

Free_Kalibri [48]

Answer:

I recommend trying this it is real tutors that explain to you on how to do it it's free

7 0

3 years ago