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3 years ago

today only, a sofa is being sold at a 36% discount. The sale price is $560. what was the price yesterday?

Mathematics

1 answer:

pashok25 [27]3 years ago

8 0

Answer:

Step-by-step explanation:

Let yesterday's price be x

Discount percentage = 36%

Sale price = $ 560

(100-36)% of x = 560

64 % *x = 560

$\frac{64}{100}*x=560\\\\x=560*\frac{100}{64}\\\\x=875$

Yesterday's price = $ 875

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PLEASE HELP!

Wittaler [7]

Answer:

See below

Step-by-step explanation:

Use the formulae directly

For a cone, with base radius = r and height = h, here are the related formula

$\textrm{Slant height l} = \sqrt{r^2 + h^2}$ (1)

$\textrm{Lateral surface area} = \pi r l$

$\textrm {Base area} = \pi r^2$

$\textrm { Total Surface Area SA} = \textrm{Base Area + Lateral Area} = \pi r^2 + \pi rl = \pi r(r + l)$ (2)

$\textrm{Volume V = } (1/3) \pi r^2h$ (3)

Therefore directly plugging in the numbers in the above equations:

Note:

l = slant height in cm
SA = total surface area in sqcm
V = Volume in cubic cm

Figure(a)

r = 4, h = 8

$\textrm{l} = \sqrt{4^2 + 8^2} =\sqrt{80} = 8.944 \\\textrm{SA} = 4\pi(4 + 8.944) = 4\pi(12.944) = 162.66\\\textrm{V} = (1/3)\pi(4^2)(8) = 134.04$

Figure(b)

r = 7, h =15

$\textrm{l} = \sqrt{7^2 + 15^2} =\sqrt{274} = 16.55$

$\textrm{SA} = 7\pi(7 + 16.55) = 517.89$

Figure (c)

r = 5, l = 8

$h = \sqrt{l^2 - r^2} = \sqrt{8^2 - 5^2} = \sqrt{39} = 6.245\\SA = \textrm{SA} = 5\pi(5 + 8) = 204.2\\V = (1/3)\pi(5^2)(6.245) = 163.5$

6 0

2 years ago

ASZPPPP LAST ONEEE PLEASEE HELPP

miskamm [114]

Answer:

Top Left

I sincerely hope this is right and that you get g really good mark ;)

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2 years ago

Find the volume of a right circular cone that has a height of 18.9 in and a base with a

Dmitriy789 [7]

Answer:

The volume of the cone is:

112.6 cubic inches.

Step-by-step explanation:

You should know that the volume of a straight circular cone is equal to:

Cone volume = (1/3) PI * r ^ 2 * h

Where:

r = radius.

h = height.

Since the radius and diameter are not provided in the exercise but the circumference, the circumference formula should be used and the diameter must be cleared:

Circumference = PI * Diameter.

When clearing you get:

Diameter = circumference / PI

By replacing the data you get:

Diameter = 15 inches / PI
Diameter = 4.77 inches.

Since the radius is equal to half the diameter, then the diameter is equal to 2,385 inches, now having the value of radius we proceed to replace in the volume formula:

Cone volume = (1/3) PI * 2.385 in^2 * 18.9 in
Cone volume = 112.581541 in^3
Cone volume = 112.6 in^3

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2 years ago

If a puppy gains eight pounds between veterinarian checkups, what has it gained?

Alex_Xolod [135]

The answer should be "The puppy gained weight only."

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3 years ago

Question 4 of 10

VARVARA [1.3K]

Answer:

A. x=3

Step-by-step explanation:

4(5x+3)=14x+30

multiply 4 to 5x and multiply 4 yo 3

20x+12=14x+30

move terms

20x-14x=30-12

subtract 20x to 14x and subtract 30 to 12

6x=18

divide both sides by 8

x=3

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3 years ago