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
gayaneshka [121]
2 years ago
13

How much : 100-99+98-97+....+4-3+2-1 = ?

Mathematics
2 answers:
Alexandra [31]2 years ago
8 0
Without accurate calculations i would say 50
RSB [31]2 years ago
3 0
100-99=1
1+98= 99
99-97= 2
2+4=6
6-3= 3
3+2=5
5-1=4
You might be interested in
Can someone help me with these five problems please i will mark as brainliest if the answers are correct
kondaur [170]

Answer:

1. C

2. B

3. C

4. A

5. D

Step-by-step explanation:

4 0
3 years ago
Help with these two figured and you shall be granted points. Good deal, half off.
STALIN [3.7K]

Answer:

5. C - 180ft²

6. D - 120m³

Step-by-step explanation:

5.

(6.5 x 11) = 71.5

(6 x 2.5) = 15

(6 x 11) = 66

(2.5 x 11) = 27.5

6.

((7.5 x 4)/2)(8) = 120

7 0
3 years ago
3 / m + 4 - 4 / m = 6 (i) Show that this equation can be written as 6m^2 + 25m+16= 0
Evgen [1.6K]

Answer:

Proved Below

Step-by-step explanation:

\sf \frac{3}{m+4} - \frac{4}{m} = 6\\LCM = m(m+4)\\Multiplying \ both \ sides \ by\ m(m+4)\\3m - 4(m+4) = 6m(m+4)\\3m-4m-16 = 6m^2+24m\\-m-16 = 6m^2+24m\\Adding\ m\ to\ both\ sides\\-16 = 6m^2+24m+m\\-16 = 6m^2+25m\\Adding \ 16 \ to \ both \ sides\\0 = 6m^2+25m+16\\OR\\6m^2+25m+16 = 0

Hence, Proved that \sf \frac{3}{m+4} - \frac{4}{m} = 6 is equivalent to \sf 6m^2+25m+16 = 0.

6 0
3 years ago
Read 2 more answers
Help me out, please!
VMariaS [17]

Answer:

y = 2/3(x - 3)

Step-by-step explanation:

slope of the line is 2/3

we can use point (3,0)

formula: y - y = m(x - x)

y - 0 = 2/3 (x - 3)

y = 2/3(x - 3)

5 0
2 years ago
A boat takes 2 hours to travel 15 miles upriver against the current. if the rate of the boat in still water is 12 miles per hour
OLga [1]

Answer:

4.5 mph or 9/2 mph

Step-by-step explanation:

Let x be the rate of the current

Formula: Distance = rate x time

where rate upstream =(12-x) and time =2 hours

15=(12-x)(2)

15=24–2x

2x=24–15

2x= 9

x=9/2=4.5 miles per hour (rate of current)

7 0
1 year ago
Other questions:
  • Find the supplementary angle of 116 degrees.
    11·1 answer
  • Can someone please answer. There is only one problem. There is a picture. Thank you!
    12·1 answer
  • 3. If 4 cards are randomly selected without replacement from a deck of cards, what is the probability of
    11·1 answer
  • Ali and jake went on a cross country trip they took a train part of the way and took a bus the rest of the way they traveled a t
    12·1 answer
  • If the exchange rate between the American dollar and the Japanese yen is such that $4.00= 442 yen, how many yen could be exchang
    14·2 answers
  • Monica has 3$ in her wallet .If this is 10% of her monthly allowance,what is her monthly allowance?
    14·1 answer
  • What is the distance between point Q and point R
    7·1 answer
  • math club has 36 members of which 13 are males and the rest are females. what is the ratio of females to males.​
    11·1 answer
  • Simplify (y⁴)² help me plz I'm noy good at maths ​
    6·2 answers
  • M+x=n- p , for x<br> A) X=-p+n+m<br> B) x=-m+n-p<br> C) x=m- n + p<br> D) x=-m-n+p
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!