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marta [7]
3 years ago
7

P=2a+3b+4c solve for c

Mathematics
1 answer:
Pani-rosa [81]3 years ago
5 0
P = 2a + 3b + 4c
4c = P - 2a - 3b
c = (P - 2a - 3b)/4
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X/5-2=x/2+3 solve for x
Makovka662 [10]
Solve for x:x/5 - 2 = x/2 + 3
Put each term in x/5 - 2 over the common denominator 5: x/5 - 2 = x/5 - (10)/5:x/5 - (10)/5 = x/2 + 3
x/5 - (10)/5 = (x - 10)/5:(x - 10)/5 = x/2 + 3
Put each term in x/2 + 3 over the common denominator 2: x/2 + 3 = x/2 + 6/2:(x - 10)/5 = x/2 + 6/2
x/2 + 6/2 = (x + 6)/2:(x - 10)/5 = (x + 6)/2
Multiply both sides by 10:(10 (x - 10))/5 = (10 (x + 6))/2
10/5 = (5×2)/5 = 2:2 (x - 10) = (10 (x + 6))/2
10/2 = (2×5)/2 = 5:2 (x - 10) = 5 (x + 6)
Expand out terms of the left hand side:2 x - 20 = 5 (x + 6)
Expand out terms of the right hand side:2 x - 20 = 5 x + 30
Subtract 5 x from both sides:(2 x - 5 x) - 20 = (5 x - 5 x) + 30
2 x - 5 x = -3 x:-3 x - 20 = (5 x - 5 x) + 30
5 x - 5 x = 0:-3 x - 20 = 30
Add 20 to both sides:(20 - 20) - 3 x = 20 + 30
20 - 20 = 0:-3 x = 30 + 20
30 + 20 = 50:-3 x = 50
Divide both sides of -3 x = 50 by -3:(-3 x)/(-3) = 50/(-3)
(-3)/(-3) = 1:x = 50/(-3)
Multiply numerator and denominator of 50/(-3) by -1:Answer:  x = (-50)/3
7 0
3 years ago
Pls help I really don’t understand I’ll be thankful thanks and no links
inysia [295]

Answer:

A: Right

B: Acute

C: Obtuse

D: Acute

Step-by-step explanation:

A: Right

(90 degrees)

B: Acute

(less than 90)

C: Obtuse

(over 90 degrees)

D:  Acute

(less than 90)

6 0
3 years ago
Raul bought a soft drink and a sandwich for $9.90 . Which is he price of each if the sandwich cost 3.5 times as much as the soft
Radda [10]
B. Sandwich costs $7.70 and the soda costs $2.20
8 0
3 years ago
Toillet paper is sold in cases for 36 rolls for $14.99 what is the per price per roll?
Eva8 [605]
Alright, so the unknown value here we want to know is the price of one roll of TP. Let's call it "x".
36x=14.99
Divide both sides by 36 to get the price of a single roll.
x=.41638888....
We have to round this to hundredths because we're talking in cents, so...
x=.42
Each roll of toilet paper costs 42 cents.
8 0
3 years ago
30 points: Answer the questions in the picture provided
Pie
1).  Enrico Fermi directed construction of the the thing
that achieved the first sustained nuclear chain reaction,
under the stadium at the University of Chicago.

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4).  The atomic mass of an atom is close to the sum of all
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7).  The names of Madame Marie and Mssr. Pierre Curie were
appropriated after their deaths and used as the unit of radiation.

2).  I have no idea what that symbol means, but 'neutron' is
the only choice left.

5 0
3 years ago
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