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nika2105 [10]
3 years ago
15

Can anyone explain how to solve this?

Mathematics
1 answer:
eduard3 years ago
8 0
I’m not 100 percent sure someone can comment on this and confirm but when it’s written like a fraction it means division. If they gave you the meaning of each variable (the letters) multiply each variable by each coefficient (the number next to the variable). Multiply all of those. Then divide it by the product of 4 and the variable

Hope this helped!
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Solve 4x+5y=13 for y.
inessss [21]
Y = -4x/5 + 13/5 would be the answer to 4x+5y=13






3 0
3 years ago
- Ify=-6 when x= -14, find x when y=-4.​
Hitman42 [59]

Answer :

x = - 12    for y = - 4

Step-by-step explanation:

Given as y = - 6       when x = - 14

write in equation form

I.e y = x + c

Put x and y values ,

So, c = y - x

     c = - 6 + 14 = 8

Now when y = - 4   and c = 8 ,

So, from eq x = y - c

 ∴                  x = - 4 - 8 = - 12      Answer

6 0
3 years ago
The numbers 5, 6, 7, and 8 are randomly arranged to create a four-digit number. What is the probability that the number formed i
myrzilka [38]

Using the <u>arrangements and the probability concept</u>, it is found that there is a 0.75 = 75% probability that the number formed is not divisible by 4.

  • A probability is the <u>number of desired outcomes divided by the number of total outcomes</u>.
  • The number of possible arrangements of n elements is given by A_n = n!

In this problem, there are 4 elements, hence n = 4, T = A_4 = 4! = 24.

A number is a multiple of 4 if the <u>number composed by it's last 2 digits are multiples of 4</u>.

  • Hence, the possible options for the last 2 digits are: 56, 68, 76.
  • For each of them, there are A_2 = 2! = 2 options for the first 2 digits, hence, there will be 2 x 3 = 6 multiples of 4.

The other 18 numbers formed are not divisible by 4, hence:

p = \frac{18}{24} = 0.75

0.75 = 75% probability that the number formed is not divisible by 4.

For more on <u>arrangements and probabilities</u>, you can check brainly.com/question/24437717

5 0
2 years ago
Jesse enjoys watching ‘Rudolph the Red-Nosed Reindeer’ during the holidays. If Jesse watches the movie three times every year, h
pogonyaev

Answer:

<em>72</em>

Step-by-step explanation:

Since every year she watches it 3 times, she would watch 3·24 times when she is 24. 3·24=3·20+3·4=60+12=72

8 0
2 years ago
Read 2 more answers
Is the absolute value of 76 less than -89
Greeley [361]

Answer:

Step-by-step explanation:No

6 0
3 years ago
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