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Rom4ik [11]
3 years ago
15

Find the unknown value in the proportion: x⁄32 = 76⁄128

Mathematics
2 answers:
Mumz [18]3 years ago
5 0
To do this you cross multiply, so you'd get 128x=512 then you divide 128 on both sides so you get x=512/128 and you get 4.
Vsevolod [243]3 years ago
5 0

Answer:54

Step-by-step explanation:

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A student identification card consists
denis23 [38]

Answer:

\frac{1}{30240}

Step-by-step explanation:

Given

ID Card of 5 digits

Possibly Digits = {0,1...,9}

Required

Probability that a card has exact number 94213

First, we have o determine the total possible number of ID card numbers

Let the card number be represented by ABCDE

Given that repetition of digits is not allowed;

<em>A can be any of 10 digits</em>

<em>B can any of the remaining 9 digits</em>

<em>C can be any of the remaining 8 digits</em>

<em>D can be any of the remaining 7 digits</em>

<em>E can be any of the remaining 6 digits</em>

<em />

Total number of cards = 10 * 9 *8 * 7 * 6

Total = 30240

Provided that the card number is generated at random; each card number has the same probability of \frac{1}{30240}

Hence, the probability of having 94213 is \frac{1}{30240}

6 0
3 years ago
In a study of 250 adults, the mean heart rate was 70 beats per minute. Assume the population of heart rates is known to be appro
alexira [117]
Hello,
Please, see the attached file.
Thanks.

3 0
3 years ago
How do you specify that y = 8x + C× is a general solution of the PD ./dy/dx − y = 6 (4 − x)?
Mariulka [41]

Answer:

I'm not sure but thank you and have a Merry Christmas

4 0
3 years ago
Read 2 more answers
Factorize 2mh-2nh-3mk+3nk ​
Nookie1986 [14]

Answer:

(2h-3k)(m-n)

Step-by-step explanation:

factor by grouping, you can group the first two terms and the last two terms:

2h(m-n) + (-3k)(m-n)

there will be one factor in common, use that factor in combination with the factors that are not duplicated:

(2h-3k)(m-n)

8 0
2 years ago
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4/12 of a cake was left over if another 3/12 of the cake is eaten
inn [45]
There would be 1/12 of the cake left. 
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3 years ago
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