Use a ratio to compare the values. Simplify the ratio<br>5m to 100cm

3. Solve the system using substitution (1 point)

Flauer [41]

(B), (C) And (D) are right for the equation y = 8 - x but none of those are true in the second equation.

8 0

3 years ago

Tiles (6" by 6") can be installed at the rate of 50 per worker hour. The floor of a large lobby area (80’ by 40’) is to be cover

RideAnS [48]

Answer:

Step-by-step explanation:

Tiles (6" by 6") can be installed at the rate of 50 per worker hour. Since the tile is a square, its area is

L^2 = 6^2 = 36 inches square

So in an hour, a worker installs 50 tiles whose area is 36 inches square. Total square meters installed per hour will be 50 × 36 = 1800 inches square per hour.

If three workers are assigned to this task, their work rate will be

1800 × 3 = 5400 inches square per hour.

The floor of a large lobby area (80’ by 40’) is to be covered with these tiles. We would convert from feet to inches.

1 foot = 12 inches

80 feet = 80 × 12 = 960 inches

40 feet = 40 × 12 = 480 inches

Area of the lobby = 90 × 480 = 460800 inches square.

If the 3 workers install 5400 inches square in 1 hour,

Then then they will install 460800 inches square in

460800/5400 = 85.33 hours

Converting to the nearest whole day, it becomes

85.33/24 = 3.55

Approximately 4 days

4 0

3 years ago

A conductor possesses a positive charge of 3.2x 10-19 C. How many electron does it have in excess or deficit (e = 1.60 x 10-19C)

LenKa [72]

The no of electrons it have in deficit=1.60

Given:

Charge possessed by a conductor = $3.2 \times 10^{-19} C$

Charge of an electron= $1.6 \times 10^{-19} C$

To find:

Amount of electrons in excess or deficit

<u>Step by Step Explanation:</u>

Solution;

Formula used for calculating electrons in excess or deficit is given as

Electrons in excess or deficit= Normal electron charge- Charge of the conductor

Also we know Charge of Conductor $=3.2 \times 10^{-19} C$ and Electron charge $=1.6 \times 10^{-19} C$

Substitute these values in the above equation we get

Electrons in excess or deficit= $1.60 \times 10^{-19} \mathrm{C}-3.2 \times 10^{-19} \mathrm{C}$

= -1.60

Result:

Hence, it has a deficit of 1.60 electrons.

3 0

4 years ago

Find the value of each variable

Doss [256]

Answer:

nhbhkhjiy

Step-by-step explanation:

6 0

3 years ago

Find last year's salary if, after a 2% pay raise, this year's salary is $36,720.

trasher [3.6K]

36,720 • 0.02 = 734.4
36,720 - 734.4 = 35,985.60

last years salary = $35,985.60

3 0

3 years ago

Use a ratio to compare the values. Simplify the ratio5m to 100cm