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valkas [14]
3 years ago
7

If 3x + 6 = 18, then x = ?

Mathematics
1 answer:
zaharov [31]3 years ago
7 0

Answer:

X=4

Step-by-step explanation:

3x + 6 = 18 \\ 3x = 18 - 6 \\ 3x = 12 \\ x = 4

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wlad13 [49]

Answer:

none of these, it should be 25%

Step-by-step explanation:

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3 years ago
The price of a ceramic bead necklace (Y) is directly proportional to the number of beads (x) on the necklace. Using the graph, w
Annette [7]

Answer: C) (1,0.80) represents the unit rate. E) (25,20) represents the price of a necklace with 25 beads

Step-by-step explanation:

(1, 0.80) represents the unit rate.

(25, 20) represents the price of a necklace with 25 beads.

\frac{y}{x} = unit rate → \frac{4}{5} = 0.80; \frac{12}{15} = 0.80; \frac{16}{20} = 0.80

Point (1, r) → (1, 0.80) represents the unit rate.

25(0.80) = 20; thus, (25, 20) represents the price of 25 beads.

Hope this helps

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3 years ago
Parallel lines j and k are cut by a transversal l. Which pair of angles are corresponding angles?
tatyana61 [14]
3 and 1 are your corresponding angles. So A.
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2 years ago
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5 0
3 years ago
For each pair of functions f and g below, find f(g(x)) and g(f(x)).
natta225 [31]

Answer:

a)  f(g(x)) = \frac{1}{2(\frac{1}{2x} )} = \frac{1}{\frac{1}{x} } } = x

    g(f(x)) = \frac{1}{2(\frac{1}{2x} )} = \frac{1}{\frac{1}{x} } } = x

    f and g are inverses

b)   f(g(x)) = x + 3 + 3 = x + 6

     g(f(x)) = x + 3 + 3 = x + 6

     f and g are not inverses

Step-by-step explanation:

a)

f(g(x)) = \frac{1}{2(\frac{1}{2x} )} = \frac{1}{\frac{1}{x} } } = x

g(f(x)) = \frac{1}{2(\frac{1}{2x} )} = \frac{1}{\frac{1}{x} } } = x

Since f(g(x)) = g(f(x)) = x, then f and g are inverses

b)

f(g(x)) = x + 3 + 3 = x + 6

g(f(x)) = x + 3 + 3 = x + 6

Since f(g(x)) = g(f(x)) ≠ x, then f and g are not inverses

5 0
3 years ago
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