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Blizzard [7]
3 years ago
7

Twice the sum of a number and six decreased by fifteen is the same as eighteen more than the product of five and the number. Fin

d the number.
Mathematics
1 answer:
Arlecino [84]3 years ago
4 0

Answer:

-9

Step-by-step explanation:

2(n+6) -15 = 5n+18

2n + 12 - 15 = 5n + 18

2n - 3 = 5n + 18

2n = 5n + 21

-3n = 21

n = -9

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Help me please this is probably easy for y’all hit not for me:(
Oksanka [162]
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6 0
3 years ago
Just find the figure of the rectangle plss
AnnZ [28]

Answer:

x= 21

y= 3

z= 21

Step-by-step explanation:

Let the center be O,

=> Triangle AOD is an Isosceles triangle so AO≅DO, "21 = x"

=> Line AC is divided in two equal parts by the center so if AO= 21 then

    7y = 21, and thus "y = 3"

=> BOC is also an Isosceles triangle so CO ≅ BO, if CO = 21 (7y → 7*3) then so will be BO. Therefore "z = 21"

4 0
3 years ago
Organize your data and find the rate of change.
LuckyWell [14K]
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E is 8 1/2 inches for the left foot
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B. find the difference in y, then the difference in x, then divide (y over x) to get the slope
8-7/7 1/2-6 1/2 = 1/1 =1

C.you plug in any (x,y) point you used to find the slope
Solve for B
y = mx+b y = 1*x + b 7.5 = 1*8 + b b =
7.5 - 8 = -0.5
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Hope this helps




8 0
3 years ago
Kim eats 1/3 of an apple in 1/6 minute.How many minutes will it take
klio [65]

Answer:

0.5 or 3/6 min

Step-by-step explanation:

so

1/3= 1/6min or 10 sec

to finish the whole apple 3/3 is required

1 part is 10 sec, 3 parts will be 30 secs which is 0.5 /3/6 min.

hope this helps

3 0
3 years ago
2.7 (7.8)??? I don't know how to work this problem...
ruslelena [56]
Just multiply the two, your answer should be 21.06
8 0
4 years ago
Read 2 more answers
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