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
melamori03 [73]
3 years ago
7

100-99+98-97+96-95+...+8-7+6-5+4-3+2-1

Mathematics
2 answers:
lina2011 [118]3 years ago
8 0
100-99+98-97+96-95+...+8-7+6-5+4-3+2-1\\\\=(100-99)+(98-97)+(96-95)+...+(4-3)+(2-1)\\\\=\underbrace{1+1+1+...+1}_{50}=\fbox{50}

sergij07 [2.7K]3 years ago
7 0
x=100-99+98-97+96-95+...+8-7+6-5+4-3+2-1=\\\\=1+1+1+...+1+1+1+1=1\cdot n=n\\\\and\ \ \ 2=100-2\cdot(n-1)\ \ \  \Rightarrow\ \ \ 2n=100\ /:2\ \ \ \Rightarrow\ \ \ n=50\\\\x=50
You might be interested in
Q3. Stefan has 4 1/2 cups of oats. He uses 3 1/4 cups to make granola bars for
AleksAgata [21]

Answer:

Days can Stefan feed

Coco with the oats he has left is 5 days

Step-by-step explanation:

Total Oats = 4 1/2 cups

He uses 3 1/4 cups to make granola bars for

a camping trip

Remaining oats after making granola bars = Total oats - oats used for granola bars

= 4 1/2 - 3 1/4

.= 9/2 - 13/4

= 18-13/4

= 5/4 cups

Remaining oats after making granola bars is 5/4 cups

Coco needs 1/4 of a cup of oats each day, how many days can Stefan feed

Coco with the oats he has left?

Days can Stefan feed

Coco with the oats he has left = Remaining oats / 1/4 cups

= 5/4 cups ÷ 1/4 cups

= 5/4 × 4/1

= 20/4

= 5 days

Days can Stefan feed

Coco with the oats he has left is 5 days

5 0
3 years ago
A pair of equations is shown below:
kati45 [8]
This kinda took a lot of effort but hope it helps

4 0
3 years ago
Read 2 more answers
16. Considering the "kindergarten-path effect," if your 4.5-year-old sister was asked to Put the bunny on the blanket on the she
sweet-ann [11.9K]

Answer:

if your 4.5-year-old sister was asked to Put the bunny on the blanket on the shelf, she may or may not  if your 4.5-year-old sister was asked to Put the bunny on the blanket on the shelf. But,the chance is very likely less than 50%.

Step-by-step explanation:

If your 4.5-year-old sister was asked to Put the bunny on the blanket on the shelf, the chance that she might follow the instructions she receives is less 50 percent. In other words:

                                      Chance < 50%

The reason is that children at this age may have challenging time figuring out the subject when you may instruct certain things to do, as the sentences could be tricky for the children to decode the meaning.  

So,  if your 4.5-year-old sister was asked to Put the bunny on the blanket on the shelf, she may or may not  if your 4.5-year-old sister was asked to Put the bunny on the blanket on the shelf. But,the chance is very likely less than 50%.

4 0
3 years ago
6/100 equals what as a decimal?
Dahasolnce [82]

Answer:

0.06  

Step-by-step explanation:

hope this helps

6 divide by 100= 0.06

3 0
3 years ago
Read 2 more answers
Shondra was unsure about what career to go into. Her high school counselor suggested a personal assessment to point out Shondra’
sineoko [7]

Answer:

lawer, Police officer criminal justice

7 0
2 years ago
Other questions:
  • How long will it take for the balance of an account to double if the savings account earns 0.75% annual interest compounded mont
    7·1 answer
  • Variables x and y are directly proportional and y=2 when x=3. What is the y when x = 9
    14·1 answer
  • Colton makes the claim to his classmates that less than 50% of newborn babies born this year in his state are boys. To prove thi
    12·1 answer
  • Use the discriminant to decide how many solutions the given equation will have. Show all work for credit. 6x^2-2x=3
    6·1 answer
  • Round 796,154 to nearest 100,000
    5·2 answers
  • D) IF 16 PEOPLE PARTICIPATED IN A RACE, HOW MANY WAYS<br> CAN THEY PLACE 1st, 2nd, AND THIRD?<br> +
    8·2 answers
  • 1<br> Sam can run 8 miles in 2 hours. At this rate, how far will he be in 9 hours.
    14·1 answer
  • Write in slope intercept form an equation of the line that passes through the given points. (0,4) (4,8) and (-2,3) (-4,4)
    12·1 answer
  • All Right. Let's see who is smart.
    6·2 answers
  • Heyy Answer please and explain
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!