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RSB [31]
3 years ago
7

The amounts that two plumbers charge for their services are described.

Mathematics
1 answer:
Solnce55 [7]3 years ago
8 0

Answer:

See below.

Step-by-step explanation:

40 + 15x = 30 + 19x

15x - 19x = 30 - 40

-4x = -10

x = 2.5

Two and a half hours.

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:) Ramesh can complete a piece of work in 10 days. He worked for 4 days and left. If
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Answer:

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Step-by-step explanation:

3 0
3 years ago
Three coins are flipped.
Darina [25.2K]

Step-by-step explanation:

1.

when 3 coins are flipped the following outcomes are possible

h = heads, t = tails

h h h

h h t

h t h

h t t

t h h

t h t

t t h

t t t

yes, there have to be 8 options, because we have 3 positions with 2 possible outcomes. that means

2×2×2 = 2³ = 8 possibilities.

2.

at least 2 tails means 2 or 3 t in the list item :

h t t

t h t

t t h

t t t

3.

so, 4 out of the 8 possible outcomes. the probability is then therefore

4/8 = 1/2 = 0.5

8 0
2 years ago
If a cylinder has a height of 12 feet and a radius of 4 feet, what is its surface area (in square feet)? What is its volume (in
Zanzabum

The volume of the cylinder is 602.88 ft³.

The surface area of the cylinder is  301.44 ft²

<h3>How to find the volume and surface area of a cylinder?</h3>

volume of a cylinder = πr²h

volume of a cylinder = 3.14 × 4² × 12

volume of a cylinder = 3.14 × 16 × 12

volume of a cylinder = 602.88 ft³

Surface are of a cylinder = 2πr(r + h)

Surface are of a cylinder = 2 × 3.14 × 4(4 + 8)

Surface are of a cylinder =  25.12(12)

Surface are of a cylinder = 301.44 ft²

learn more on cylinder here: brainly.com/question/27851775

#SPJ1

8 0
2 years ago
Find the width of the rectangular prism when the surface area is 208 square centimeters? The height is 8cm and the length is 6cm
Blizzard [7]
SA = 2(wl + hl + hw)
SA = 208
h = 8
l = 6

208 = 2(6w + (8*6) + 8w)
208 = 2(14w + 48)
208 = 28w + 96
208 - 96 = 28w
112 = 28w
112/28 = w
4 = w <==== the width is 4 cm
6 0
3 years ago
Read 2 more answers
use the table to find each ratio 8 white socks and 6 black socks and 4 blue socks and 5 brown socks ... white socks to brown soc
nevsk [136]
<h3>Answer:</h3>
  • white : brown = 8 : 5
  • black : total = 6 : 23
<h3>Explanation:</h3>

Each of the ratio components (white socks, brown socks, black socks, total socks) has an associated number (8, 5, 6, 23). Write the desired ratio using the associated numbers.

8 0
3 years ago
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