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Anastasy [175]
3 years ago
10

Elevation is measured as a distance above or below sea level. Sea level has an elevation of 0 feet. Johanna is standing on a hil

lside 35 feet above sea level, and Marcus is exploring a cave at an elevation that is the opposite of Johanna's elevation. What is Marcus's elevation? Plz Help
Mathematics
1 answer:
sesenic [268]3 years ago
3 0

Marcus's elevation would be 35 feet BELOW sea level and as an integer it is written as -35. This is because the term BELOW describe an integer that is UNDER sea level. Sea level is ALWAYS 0, meaning anything BELOW it is negative and anything ABOVE it is positive. Using a vertical number line can also show you how integers correlate to sea level elevations.

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THERE ARE 1,000 WORKERS IN A FACTORY . EACH WORKER WORKS 30 HOURS A WEEK AND IS PAID $5.50 AN HOUR . HOW MUCH DOES THE COMPANY H
stepan [7]
1 worker = 30 hours a week
1 worker = 30 x $5.50 a week = $165

1 worker = $165
1000 workers = 165 x 1000 = $165 000

5 0
3 years ago
Read 2 more answers
Solve the equation -20=-4x-6x
IrinaK [193]
-20=-4x-6x
4x+6x=20
10x=20
x=20:10
x=2

proof:
-20=-4×2-6×2
-20=-8-12
(-8)+(-12)=-20

4 0
3 years ago
A 5-meter ladder is leaning against the side of a house. The foot of the ladder is pulled away from the house at a rate of 0.4 m
Flura [38]
<h2>The top of the ladder is descending at 0.3 m/s.</h2>

Step-by-step explanation:

By Pythagoras theorem we know that

              Hypotenuse² = Base² + Perpendicular²

                   h² = b² + p²

We have for ladder

                        h = 5 m

                        b = 3 m

                        5² = 3² + p²

                        p = 4 m

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Differentiating h² = b² + p² with respect to time

                    2h\times \frac{dh}{dt}=2b\times \frac{db}{dt}+2p\times \frac{dp}{dt}\\\\5\times 0=3\times 0.4+4\times \frac{dp}{dt}\\\\\frac{dp}{dt}=-0.3m/s

The top of the ladder is descending at 0.3 m/s.

3 0
3 years ago
2) Find the probability of rolling a 2 or smaller.
Mamont248 [21]

There are 6 numbers in one die.

There are 2 numbers that are less than or equal to 2, they are 1 and 2

The probability of something happening is the number of chances / total number

The probability would be 2/6, which can be reduced to 1/3

8 0
2 years ago
What are the solutions to the system of equations?<br> y= x^2 - 4x + 8<br> y= 2x +3
coldgirl [10]

Answer:

(1, 5) and (5, 13)

Step-by-step explanation:

8 0
3 years ago
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