1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sergio [31]
3 years ago
9

Robert stands atop a 1,380-foot hill. He climbs down, reaching the bottom of the hill in 30 minutes. What is Robert’s average ra

te of elevation change in feet per minute?
A. +460.
B. +46
C.-46
D. -460
Mathematics
2 answers:
shusha [124]3 years ago
8 0

The answer to this question would be B. +46 because if you divide 1,380 by 30 you get a positive 46.

aniked [119]3 years ago
7 0

This is an equation of elevation change.  Since it takes 30 minutes do go down 1380 feet, or undergo an elevation change of -1380 feet, the answer is -1380/30, or an average elevation change of -46 feet per minute


Hope this helped.

You might be interested in
A museum worker randomly displays 8 historical writings in a row. What is the probability that the worker lines them up from the
Andreas93 [3]
There are 8! possible combinations, or 8p8, and there is only 1 that has them in order from oldest to youngest, so the answer is A.
7 0
2 years ago
Read 2 more answers
Maggie’s brother is three years younger than twice her age. The sum of their ages is 24. How old is maggie?
JulsSmile [24]

To solve this problem, we must set up a system of equations. In this case, let's let Maggie's age be represented by the variable m and her brother's age be represented by the variable b. We are told that the sum of their ages is 24, which gives us our first equation: m + b = 24. We can construct our next equation from the first sentence of given information: b = 2m - 3. This makes our system of equations:

m + b = 24

b = 2m - 3

To solve, we are going to substitute the value for b in terms of m given by the second equation into the first equation for the variable b.

m + b = 24

m + 2m - 3 = 24

To simplify, we must first combine the variable terms on the left side of the equation using addition.

3m - 3 = 24

Next, we should add 3 to both sides of the equation to get the variable term alone on the left side of the equation.

3m = 27

Finally, we should divide both sides by 3 in order to get the variable m alone.

m = 9

Therefore, Maggie is 9 years old (using the first equation and substituting in this value you can find that her brother is 15 years old).

Hope this helps!

8 0
3 years ago
Read 2 more answers
I NEED HELPPPP ASAPPP PLEASE HELP MEEEE I WILL GIVE BRAINLY AND 20 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Morgarella [4.7K]

Answer:

c

Step-by-step explanation:

this is 9n>27. THIS is truuuuuuuuuuuueeeeeee

4 0
3 years ago
Show work plz
NemiM [27]
25 percent is the same as the decimal 0.25.

Multiply 100 by 0.25 to see what 25% of 100 is.
100x0.25=25

Then, to find the price raised by 25%, add 25 to 100.
100+25=125

The final answer is $125.

Hope this helps!
6 0
3 years ago
Please help me with this
juin [17]

Answer:

10π (31.415926)

√101(10.0498756)

9.92749...

0.99853...

Step-by-step explanation:

For 10π, we can simplify π into 3.14 for an approximate amount. 3.14*10=31.4

For the square root of ten, we can estimate it's between 10 and 11 since 10 squared is 100 and 11 squared is 121.

6 0
2 years ago
Read 2 more answers
Other questions:
  • The enrollment at a local college increased 4% over last year’s enrollment of 2100. Find the current enrollment.
    15·2 answers
  • R over 10 + 7 = 8<br> please help? two step equations
    13·2 answers
  • A city has just added 100 new female recruits to its police force. The city will provide a pension to each new hire who remains
    9·1 answer
  • What is an aproximate estimate for 98.7 , 35.4 , 3.8 , 20.3
    10·1 answer
  • Given that secant theta = Negative StartFraction 37 Over 12 EndFraction, what is the value of cotangent theta, for StartFraction
    14·2 answers
  • Using the polygon angle sum theorem, find x in the graphic above
    14·1 answer
  • Find the solution to the system of equations.
    12·1 answer
  • 8(4q-5)-7=5(5q-8) fast !!!!
    12·2 answers
  • Help me with this assignment problem​
    7·1 answer
  • Which expression could represent the phrase shown? (1 point)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!