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nlexa [21]
4 years ago
13

A painter mixes gray paint by using 1 gallon of black paint for every 7 gallons of white paint. How much black paint and how muc

h white paint will the painter need to mix 20 gallons of gray paint?
Mathematics
1 answer:
kondaur [170]4 years ago
4 0

Answer:

2.5 gallons of black paint

17.5 gallons of white paint

Step-by-step explanation:

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Solve -44-7k=12+k answer quick please
nirvana33 [79]

Answer:

k = -7

Step-by-step explanation:

Solve for k:

-7 k - 44 = k + 12

Subtract k from both sides:

(-7 k - k) - 44 = (k - k) + 12

-7 k - k = -8 k:

-8 k - 44 = (k - k) + 12

k - k = 0:

-8 k - 44 = 12

Add 44 to both sides:

(44 - 44) - 8 k = 44 + 12

44 - 44 = 0:

-8 k = 12 + 44

12 + 44 = 56:

-8 k = 56

Divide both sides of -8 k = 56 by -8:

(-8 k)/(-8) = 56/(-8)

(-8)/(-8) = 1:

k = 56/(-8)

The gcd of 56 and -8 is 8, so 56/(-8) = (8×7)/(8 (-1)) = 8/8×7/(-1) = 7/(-1):

k = 7/(-1)

Multiply numerator and denominator of 7/(-1) by -1:

Answer: k = -7

7 0
3 years ago
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How can you graph m(x)=5x and then compare it to f(x)=x?
erastovalidia [21]
Graph the line y=5x. Then graph the line y=x. Then look at them and describe in what ways they are the same or different.
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4 years ago
What is the reason for statement 3, statement 5, statement 7?
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Answer:VOA

Step-by-step explanation:

3 and 5 )vertically opposite angles

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27 divided by (3/4) square
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The answer is 48. Becuase you need to multipluy and also didived the numbers by the quatum number of X.

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Eight decreased by 3 times x is 20
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8-3 times x=20
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then subtract five from twenty. the answer is fifteen
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