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Vlad1618 [11]
3 years ago
13

What is the solution to 4 x + 6 less-than-or-equal-to 18?

Mathematics
1 answer:
DerKrebs [107]3 years ago
5 0

Answer:

Answer

4.0/5

58



amna04352

Genius

6.9K answers

39.6M people helped

Answer:

x-less than-or-equal-to 3

Step-by-step explanation:

4x + 6 < 18 (less than or equal to)

4x < 12 (less than or equal to) x < 3 (less than or equal to)

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A solution containing 12% alcohol is to be mixed with a solution containing 4% alcohol to make 20 gallons of solution containing
stepan [7]

Answer:

Step-by-step explanation:

Given that a solution containing 12% alcohol is to be mixed with a solution containing 4% alcohol to make 20 gallons of solution containing 9% alcohol.

Let x gallons of 12% alcohol be mixed with y gallons of 4% alcohol.

Total gallons= x+y = 20

Alcohol content in the total mixture = 0.12x+0.04y =9% of x+y

0.12x+0.4y=0.09(20)\\12x+4y = 180

b) Two equations are

x+y = 20\\12x+4y = 180

c) This is of the form Ax = B

where A =\left[\begin{array}{ccc}1&1\\12&4\end{array}\right]

Inverse is \frac{1}{4-12} \left[\begin{array}{ccc}4&-1\\-12&12\end{array}\right]\\=\frac{-1}{8} \left[\begin{array}{ccc}4&-1\\-12&12\end{array}\right]\\

Solution set is A inverse *B

= x \    12.5\\y  \     7.5

7 0
3 years ago
Which algebraic expression represents “Marcus practiced the trumpet twice as long this week”?
Maksim231197 [3]

Answer:

2p

Step-by-step explanation:

u got ig??

8 0
3 years ago
-18=2+5x solve for x
Korvikt [17]

Answer:

x=-4

Step-by-step explanation:

-18=2+5x

Subtract 2 from both sides

-20=5x

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3 0
3 years ago
Read 2 more answers
Find the equation of the line specified. The line passes through the points ( 5, 2) and ( 6, 4) a. y = 2x - 8 c. y = 2x + 12 b.
o-na [289]
<span>( 5, 2) and ( 6, 4)
slope m = (4-2)/(6-5) = 2

y = mx + b
b = y - mx
b = 2 - 2(5)
b = 2 - 10
b = -8

so now you have slope m = 2 and y intercept b = -8

equation
y = 2x - 8

answer
</span><span>a. y = 2x - 8</span>
4 0
3 years ago
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O NEED HELP QUICK!!!
Wittaler [7]

Answer:

the third one is your answer

Step-by-step explanation:

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2 years ago
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