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Evgesh-ka [11]
3 years ago
14

a plastering contractor charges $18 per square yard( that is $2 per square foot). what is the cost of plastering 100 feet of wal

l in a house with an 8 foot ceiling
Mathematics
1 answer:
Tomtit [17]3 years ago
4 0
Basically, this problem is going to require you to solve for the area and multiply it with the given cost unit.

Area = Length*Height
Area = 100 ft * 8 ft = 800 ft²

Total Cost = (Unit Cost)(Area)
Total Cost = ($2/ft²)(800 ft²)
<em>Total Cost = $1,600</em>
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David received $50 dollars for working at his father’s store. He spent $20 dollars at the movies, and $10 dollars buying comic b
statuscvo [17]
Total amount of money received by David for working at his father's store = $50
Amount of money spent by David at the movies = $20
Amount of money spent by David buying comics books = $10
Amount of money spent by David buying candy = $5
Then
Total amount spent by David = (20 + 10 + 5) dollars
                                               = 35 dollars
Amount of money saved by David = (50 - 35 ) dollars
                                                       = 15 dollars
So
The ratio of the amount of money David
spent to the amount of money David saved = 35:15
                                                                      = 7:3
So the ratio of the amount of money David spent to the amount of money David saved is 7:3
5 0
3 years ago
Find x.<br><br> A. 2√5<br> B. 3√5<br> C. 6
Tems11 [23]

Hello there,

Find x.

Answer: B. 3√5


4 0
3 years ago
Read 2 more answers
The riverside geyser in Yellowstone erupts about every 6.25 h. When the geyser erupts, the water has an initial upward velocity
Aleonysh [2.5K]

Answer:

Correct answer:  Hmax = 22.11 m

Step-by-step explanation:

The subject of this problem is a vertical shot upwards, to which the following formula applies:

V₀² - V² = 2 · g · H   where is:

V₀ - initial velocity

V - final velocity

g = 10 m/s²

H - final height

Given:

V₀ = 69 ft/s = 21.03 m/s

V = 0 m/s

Hmax = ?

V₀² = 2 · g · Hmax  ⇒ Hmax = V₀² / 2 · g

Hmax = 21.03² / 2 · 10 = 442.26 / 20 = 22.11 m

Hmax = 22.11 m

God is with you!!!

6 0
2 years ago
Coordinates (-3, 5), ( -3, 8), and (2, 5). The triangles was dilated by a scale favtor of 3. What is the area of the dilated tri
Otrada [13]

Answer:

The area of the triangle is 7.5 unit²

Step-by-step explanation:

Here we have the coordinates given as

(-3, 5) (-3, 8) and (2, 5)

Let us call the points A = (-3, 5)

B = (-3, 8) and

C = (2, 5)

Therefore the lengths of the sides of the triangle are

AB = a =  \sqrt{(-3-(-3))^2+(5-8)^2} =  3

AC = b = \sqrt{(-3-2)^2+(5-5)^2} =  5

BC = c = \sqrt{(-3-2)^2+(8-5)^2} =  \sqrt{34}

Therefore the Area can be derived from Heron's formula which is

A =  \sqrt{s\times (s-a)\times (s-b)\times (s-c)} where s = semi perimeter or (a + b + c)/2

Therefore, plugging the values, we get

s =   (3 + 5 + √34)/2 = 6.9155≈6.92

A =  \sqrt{6.92\times (6.92-3)\times (6.92-5)\times (6.92-\sqrt{34} )} = 7.499≈7.5.

7 0
3 years ago
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Sue deposited $1,500 into two different accounts.
avanturin [10]

$915 I’m pretty sure

5 0
3 years ago
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