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Rzqust [24]
2 years ago
12

With a 5% sale discount, the price of an item is $38.00. What was the original price?

Mathematics
1 answer:
tresset_1 [31]2 years ago
7 0

Answer:40

Step-by-step explanation:

1)38/x=95/100

2)cross multiply: 3800=95x

3)divide each side by 95 (3800/95 and 95x/95)

4)simplify to get the answer

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8/15

Step-by-step explanation:

because there are 8 red marbles out of 15 marbles

5 0
3 years ago
Please explain this answer ☹️
GuDViN [60]

Answer:

see explanation

Step-by-step explanation:

Note that cos315° = cos45° and sin315° = - sin45° and

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Hence

12(cos315° + isin315°)

= 12(cos45° - isin45°)

= 12(\frac{\sqrt{2} }{2} - i \frac{\sqrt{2} }{2})

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3 years ago
The sum of four consecutive numbers is 230. What is the largest of these numbers
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Answer:

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Step-by-step explanation:


7 0
3 years ago
Find the length of the curve y = 3/5x^5/3 - 3/4x^1/3 + 6 for 1 < = x < = 8. The length of the curve is . (Type an exact an
Mashutka [201]

Answer:

\sqrt\frac{387}{20}

Step-by-step explanation:

Arc Length =\int\limits^a_b {\sqrt{1+(\frac{dy}{dx})^2 } } \, dx

y=\dfrac{3}{5}x^{\frac{5}{3}}-  \dfrac{3}{4}x^{\frac{1}{3}}+6

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1+(\frac{dy}{dx})^2 }=1+(x^{\frac{2}{3}}-\dfrac{1}{4}x^{-\frac{2}{3}})^2\\=1+(x^{\frac{4}{3}}-\dfrac{1}{2}+ \dfrac{1}{16}x^{-\frac{4}{3}})

=\dfrac{1}{2}+x^{\frac{4}{3}}+ \dfrac{1}{16}x^{-\frac{4}{3}}

For the Interval 1\leq x\leq 8

Length of the Curve =\int\limits^8_1 {\sqrt{\dfrac{1}{2}+x^{\frac{4}{3}}+ \dfrac{1}{16}x^{-\frac{4}{3}} } } \, dx\\

Using T1-Calculator

=\sqrt\frac{387}{20}

3 0
3 years ago
What does 3x- -3 + 32=73x what is x?
serious [3.7K]

Answer:

Exact Form:

x

=

1

2

Decimal Form:

x

=

0.5

Step-by-step explanation:

6 0
3 years ago
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