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Effectus [21]
3 years ago
14

Solve for y 4(x + 1) = y - 8

Mathematics
2 answers:
Serga [27]3 years ago
5 0
4(x+1)=y-8
4x+12=y

Distribute the 4 into x and 1 and then add 8 to the other side
Serhud [2]3 years ago
4 0

Answer:

4x+4 = y-8

4x = y-8-4

4x= y-12

-y = -12 - 4x

y = 12 + 4x

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Please solve 21=5n-2(n-3)
Stella [2.4K]

21 = 5n-2(n-3)

21 = 5n-2n+6

21-6 = 3n

n=15/3

n=5

8 0
3 years ago
Read 2 more answers
NUMBER 6 PLEASE HELP ASAP
Aleksandr [31]

Answer:

Part A: 115

Part B: 36000

Explanation:

Part A asks for the perimeter, which is adding, so add up the 15, 40, and 60, which will equal to 115.

Part B asks for the area, which is multiplying, so you multiply the numbers,

15 x 40 x 60 = <u>36000</u>

15 x 40 = 600

600 x 60 = 36000

You could try multiplying it a different way but get the same answer:

60 x 40 x 15 = <u>36000</u>

60 x 40 = 2400

2400 x 15 = 36000

I'm not sure if this is correct but I hope I helped

have a great day/night :))

6 0
2 years ago
From a group of 8 volunteers, including Andrew and Karen, 4 people are to be selected at random to organize a charity event. Wha
Ede4ka [16]

Answer:

D. 2/7

Step-by-step explanation:

The probability is calculate as a division between the number of ways in which Andrew will be selected and karen will not and the total ways in which they can select 4 people from a group of 8 volunteers.

The number of ways in which they can select 4 people from a group of 8 volunteers can be calculated using:

nCk=\frac{n!}{k!(n-k)!}

Where nCk give as the number of ways in which we can form groups of k elements from a group of n elements.

So, if we replace n by 8 and k by 4, we get:

8C4=\frac{8!}{4!(8-4)!}=70

Then, there are 70 ways to select 4 people from a group of 8 volunteers.

At the same way, the number of ways in which Andrew will be selected and karen will not can be calculate replacing n by 6 and k by 3 in the same equation as:

6C3=\frac{6!}{3!(6-3)!}=20

We replace n by 6 because from the 8 volunteers, Andrew is going to be selected and Karen will not, so, the people that affect the result are just the 6 remaining volunteers. Also, k is equal to 3 because Andrew is already selected and we just need to select 3 more people.

Finally, the probability is:

P=\frac{20}{70} = \frac{2}{7}

4 0
2 years ago
I need help solving this
ValentinkaMS [17]
11, 13, and 16. sorry if im wrong, and i hope this helps.
5 0
3 years ago
The length of a rectangle is 6 inches longer than it’s width what are the possible widths if the area of the rectangle is at lea
stealth61 [152]

Let the width = x

length = x + 6

(x + 6) * x = 667

Simplify

x² + 6 = 667

x² + 6 (-6) = 667 (-6)

x² = 661

√x² = √661

x = √661

x = 25.71 (rounded)

25.71 in. is your width

hope this helps

6 0
3 years ago
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