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VARVARA [1.3K]
3 years ago
7

If stanley bought a sandwich, that cost $3 with 50% off. what was the original price?

Mathematics
2 answers:
Andrew [12]3 years ago
3 0

Answer:

The answer is 6$. Half of 6$ is 3$

STALIN [3.7K]3 years ago
3 0

Answer:

$6

Step-by-step explanation:

Let the original price be =Y,

50% of the original = Y×50/100 = 0.5Y

∴  50% off =Y - 0.5Y = 3

0.5Y=3

divide both side by the co-efficient 0f Y i.e 0.5

⇒0.5Y/0.5=3/0.5

⇒Y= $6

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Which statement is true of the function f(x) = Negative RootIndex 3 StartRoot x EndRoot? Select three options.
ycow [4]

Answer:

Options (2), (3) and (4) are correct.

Step-by-step explanation:

The given function is f(x) = -\sqrt[3]{x}

1). First derivative of the function = f'(x) = \frac{d}{dx}(-\sqrt[3]{x} )

  f'(x) = -\frac{1}{3}(x)^{-\frac{2}{3}}

  Since derivative is negative, function will be decreasing everywhere.

  Therefore, Option (1) is incorrect.

2). Since value of the function is true for every value of all real values of x.

  Domain of the function is (-∞, ∞).

  Therefore, Option (2) is correct.

3). For the given domain, range of the function will be all real values of y Or (-∞, ∞)

  Therefore, Option (3) is correct.

4). Function 'f' when reflected across x axis, equation of the reflected function will be g(x) = \sqrt[3]{x}.

 Therefore, Option (4) is correct.

5). For a point (3, -27),

  -27 = -\sqrt[3]{3}

  Therefore, Option (5) is incorrect.

8 0
3 years ago
The sum of Sally and Beth's age is 60. Six years ago, Sally was 3 times as old as Beth. What are their present ages?
andrew-mc [135]
It's quite simple. Look:

Lets let S- be the age of Sally and B- can be the age of Beth

S+B=60
S-6=3(B-6)

S-6=3B-18
S=3B-18+6
S=3B-12

3B-12+B=60
4B=60+12
4B=72
B=72/4
B=18

B=60-18
B=42

The ages are (B)18 and (S)42

Hope this helps!! :)
6 0
2 years ago
PLEASE HELP ME WITH THIS QUESTION! I CANT FIGURE IT OUT, PLEASE HELP:/
8090 [49]

Answer:

i did something wrong since i have more  than one answer

Step-by-step explanation:

4 0
3 years ago
Find the length of AB?<br> Round to the nearest tenth
aev [14]

Answer:

AB ≈ 8.5

Step-by-step explanation:

a^{2} + b^{2} = c^{2} \\\\c = \sqrt{a^{2} + b^{2} } \\\\c = \sqrt{6^{2} + 6^{2} } \\\\c = \sqrt{36 + 36 } \\\\c = \sqrt{72 } \\\\c = 8.48528137424 \\

c ≈ 8.5

5 0
3 years ago
15+25/5x7=<br><br> 15+25divide5x7=
jenyasd209 [6]
Its either 1.14 or 0.87 Hope this helps!
7 0
3 years ago
Read 2 more answers
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