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Georgia [21]
3 years ago
9

Can someone help me with both of these? You can answer only one, however, If you answer both that is who gets brainliest. don't

answer just to take my points or you will get reported.

Mathematics
2 answers:
denis-greek [22]3 years ago
8 0

Answer:

20x+80

10/21

Step-by-step explanation:

20*x+20*4

20x+80

\frac{5}{7}*\frac{2}{3}

5*2=10

7*3=21

\frac{10}{21}

damaskus [11]3 years ago
3 0

Answer:

20x+80

10/21

Step-by-step explanation:

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the perimeter of a rectangular field is (16a+8b-6c) units and one of its side is (5a+3b-4c) find the other side
Jet001 [13]

3a+b+c


The perimeter is two times one side (to account for the opposite) and two times the adjacent side. So if the sides would be x and y, the perimeter would be 2*x + 2*y.

So, knowing that the sum is 16a+8b-6c, if we subtract the given side 5a+3b-4c from this, what remains is two times the "other" side:

16a+8b-6c - 2*(5a+3b-4c) =

16a+8b-6c -10a-6b+8c =

6a+2b+2c

half of that is

(6a+2b+2c)/2 = 3a+b+c

7 0
3 years ago
Could you help me solve this
sammy [17]
Could it be Red Blue Blue Green Purple? Or Red Blue Green Grey Purple?
4 0
3 years ago
if the sum of the first 60 positive integers is s, what is the sum of the first 120 integers in terms of s? a. 2s 3600 b. s^2 36
kvasek [131]
For the first 60 positive integers, a = 1, n = 60, l = 60.
Sn = n/2(a + l)
s = 60/2(1 + 60) = 30(61)

For the next 60 positive integer, a = 61, n = 60, l = 120
Sum = 60/2(61 + 120) = 30(61 + 120) = 30(61) + 30(120) = s + 3600

Sum of first 120 positive integers = s + s + 3600 = 2s + 3600
6 0
3 years ago
Help please! One question! xoxo
AVprozaik [17]

Answer:

i will choose b

Step-by-step explanation:

8 0
3 years ago
Simplify: -2 1/3 - (-10 1/6) 1) -12 1/2 2) 12 1/2 3) 7 5/6 4) -7 5/6
marshall27 [118]

Answer:

- 5 16/22

Step-by-step explanation:

idk

7 0
3 years ago
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