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2 years ago

A day at the spa costs $125. You leave a 20% tip. How much tip did you leave?

Mathematics

2 answers:

OverLord2011 [107]2 years ago

4 0

Answer: $25

Step-by-step explanation:

20% = 0.20

125 x 0.20 = 25

$125 + $25 = $150 (the entire bill)

Greeley [361]2 years ago

3 0

Answer:

20%/100 × 125 = 25

$125+25=50

hope it helps

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A Web music store offers two versions of a popular song. The size of the standard version is 2.1 megabytes (MB). The size of the

liq [111]

If the number of downloads of the standard version is x, and the high quality is x, 2.1*x+4.1*y=2761 (not 1010 due to that this is multiplied by 2.1 and 4.1, therefore representing the total amount of megabytes) In addition, there are 1010 total downloads, and it's either 2.1 MB or 4.1 MB, so x+y=1010.

We have
2.1x+4.1y=2761
x+y=1010

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3 years ago

List the first 5 terms of the sequence -3n -2.

katrin2010 [14]

Answer:

-5,-8,-11,-14,-17

Step-by-step explanation:

-3n -2

n=1 -3(1) -2 = -3-2 = -5

n=2 -3(2) -2 = -6-2 = -8

n=3 -3(3) -2 = -9-2 = -11

n=4 -3(4) -2 = -12-2 = -14

n=5 -3(5) -2 = -15-2 = -17

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3 years ago

Read 2 more answers

64 percent of what number is 48

sergey [27]

The answer I got was 75%

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3 years ago

What is the surface area of a conical grain storage tank that has a height of 37 meters and a diameter of 16 meters? Round the a

jek_recluse [69]

The surface area of a cone is equal to the base plus the lateral area.

The base is a circle, and has a diameter of 16 meters.
The radius is always half the diameter, so it is 8 meters.
The area of a circle = πr², where r is the radius. π(8)² = 64π ≈ 201.06193
The area of the base is ≈ 201.06193.

To find the lateral area of the cone, we need to find the slant height.
Since the height, radius, and slant height of the cone form a right triangle, we can use the Pythagorean Theorem to find the slant height with what we are given.
radius² + height² = slant height²
8² + 37² = slant height²
64 + 1369 = slant height²
1433 = slant height²
slant height = √1433

The lateral area of a cone is equal to πrl, where r = radius and l = slant height.
πrl = π(8)(√1433) ≈ 951.39958
(there are other formulas which do the same thing, but it doesn't matter.)

Now we add the lateral area and base together to find our surface area.
201.06193 + 951.39958 = 1152.46151 which rounds to C. 1,152 m².

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3 years ago

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Pavlova-9 [17]

Step-by-step explanation:

From the figure it is clear that:

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the left exterior angle of line q is also70.

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