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pickupchik [31]
3 years ago
7

-x+3+5(2x-6)+9(3x+11) will you answer with work shown and answer

Mathematics
1 answer:
LekaFEV [45]3 years ago
8 0
Hello there!

#-x + 3 + 5(2x - 6) + 9(3x + 11)#

#-x + 3 + 10x - 30 + 27x + 99#

Put the common terms together 

#-x + 10x + 27x + 3 + 99#

#36x + 72#
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There are 18 possible combinations
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2 years ago
30 POINTS!!!!!!!!!!!!!!! PLEASE HELP!!!!!!!
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2 years ago
Read 2 more answers
How many grams NaCl would you use to make a 4M solution in 100ml
MatroZZZ [7]

Answer:

Amount of NaCl = 23.376 gram

Step-by-step explanation:

Given:

Molarity = 4M

Volume of solution = 100 ml

Find:

Amount of NaCl

Computation:

Molar mass of Na = 22.99 g/mole

Molar mass of Cl = 35.45 g/mole

Molar mass of NaCl =  22.99 + 35.45

Molar mass of NaCl  = 58.44 g/mole

Molarity = [moles of solute / volume of solute(ml)]1,000

4 = [moles of solute / 100]1000

Moles of solute = 0.4

moles of solute = Mass of solute / molar mass

0.4 = Amount of NaCl / 58.44

Amount of NaCl = 23.376 gram

8 0
3 years ago
The perimeter of a triangle is 84 feet. Find the length of the three sides if the middle length side is 5 feet greater than twic
mixas84 [53]

Answer: Smaller side = 14ft

middle side = 33ft

Larger side = 37ft

Step-by-step explanation:

This triangle has 3 sides, defined by the variables:

S = length of the smallest side.

M = length of the middle side.

L = length of the larger side.

And the perimeter of a triangle is equal to the addition of the length of each side of the triangle.

We also know that:

M = 5ft + 2*S

L = 3*S - 5ft

84ft = S + M + L.

The first step is to replace the first and the second equation into the third, so we can solve it for S.

84ft = S + (5ft + 2*S) + (3*S - 5ft)

84ft = 6*S

84ft = 6*S

84ft/6 = 14ft = S.

Now that we found the length of the shorter side, we can replace it in the above equations to find the length of the other two sides:

M = 5ft + 2*S = 5ft + 2*14ft = 33ft

L = 3*S - 5ft = 37ft

4 0
3 years ago
Andy’s goal for the week is to run 19 miles. he ran 6.19 miles between monday and friday. he ran 3.1 miles on saturday. how many
tatiyna

Answer:

9.71 miles

Step-by-step explanation:

total miles he ran = 6.19 + 3.1 = 9.29

Target = 19 miles

Goal for sunday = 19 - 9.29 = 9.71

5 0
3 years ago
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