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
Gala2k [10]
3 years ago
10

Complete the table with the number of sit-ups you have to do sunday so that the mean number of sit-ups per day is 100

Mathematics
1 answer:
marissa [1.9K]3 years ago
5 0

The mean is the average of the numbers.

It is easy to calculate: add up all the numbers, then divide by how many numbers there are.

Let the number of sit-ups you have to do Sunday be x. Then the sum of all sit-ups is

100+65+120+150+90+0+x=525+x.

The number of days is 7.

Thus, the mean is

\text{mean}=\dfrac{525+x}{7}.

You know that the mean number of sit-ups per day is 100, equate these two means and solve the equation:

\dfrac{525+x}{7}=100,\\ \\525+x=700,\\ \\x=700-525,\\ \\x=175.

Answer: 175 sit-ups

You might be interested in
what are the explicit equation and domain for a geometric sequence with a first term of 5 and a second term of -10
OleMash [197]
a_1=5;\ a_2=-10;\ r=a_2:a_2\to r=-10:5=-2\\\\a_n=a_1r^{n-1}\\\\\boxed{a_n=5\cdot(-2)^{n-1}}
6 0
3 years ago
Read 2 more answers
Alex is practicing his dives at a pool. He dives from a dividing board that is 21 feet above the surface of the water. His dive
leonid [27]

Answer:

NO. Alex was wrong.  

The total dive distance is 21 + 17 = 38 feet

Step-by-step explanation:

Alex was wrong because his direction of diving is from above the water through the surface of the water to under the water.

So his direction of travelling is not opposite but the same.

Therefore the total distance traveled by Alex = distance traveled from the diving board to the water surface + distance traveled from the water surface to down below the water  

Distance traveled from the diving board to the water surface = 21 feet

Distance traveled from the water surface down below the water = 17 feet  

Total distance traveled by Alex = 21 feet + 17 feet

   = 38 feet.

Thus, Alex was wrong because the the total distance traveled by Alex was 38 feet.

6 0
3 years ago
Reduce 8/4 what is the lowest number
nika2105 [10]
The lowest number is 2/1 or 2.

reduce 8/4 to 4/2 which can be reduced to 2/1
4 0
3 years ago
Read 2 more answers
(14÷2)+((18+5)+4<br>order of operations
Amanda [17]
33 is the answer to that question
8 0
3 years ago
How does the value of log Subscript 2 Baseline 100 compare with the value of Log Subscript 6 Baseline 20?.
attashe74 [19]

You can use the change of base formula to get

\log_2(100) = \frac{\log(100)}{\log(2)} \approx 6.643856

and also

\log_6(20) = \frac{\log(20)}{\log(6)} \approx 1.671950

In general, the change of base formula is

\log_b(x) = \frac{\log(x)}{\log(b)}

8 0
2 years ago
Other questions:
  • I need the answer please
    5·1 answer
  • PLZ HELP
    7·1 answer
  • This question is that I need help with is "Finding angle measures between intersecting lines"​
    5·1 answer
  • Arrange the steps to solve this system of linear equations in the correct sequence. Screenshot included. (Please help)
    9·2 answers
  • rob needs 345 centimeters of tape to wrap packages. how many rolls of tape should rob buy if each roll holds 1 meter of tape
    10·1 answer
  • A culture of bacteria doubles every 2 hours. Is the bacteria growth over time an arithmetic or geometric sequence? Why?
    8·1 answer
  • 1.What is the solution to the system of equations?
    5·1 answer
  • Determine the intercepts of the graph described by the following linear equation<br> y=6x+13
    15·1 answer
  • How to solve 5over 6 divided by 1over 5
    7·2 answers
  • HELP ME PLEASE! I will give brainliest!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!