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
Karo-lina-s [1.5K]
3 years ago
9

What is the some of the counting numbers from 1 to 80?

Mathematics
1 answer:
kumpel [21]3 years ago
7 0
There is a formula for adding consecutive numbers:
total = n*(n+1)/2
total = 80*(81)/2
total = 3,240

You might be interested in
A system of equations is shown below.
prisoha [69]

Given:

The system of equations is

y=1.5x-3

y=1.5x+4

To find:

The true statement about the given system of equations.

Solution:

The slope intercept form of a line is

y=mx+b

Where, m is the slope and b is the y-intercept.

We have,

y=1.5x-3

y=1.5x+4

On comparing these two lines with slope intercept form, we get

m_1=1.5,b_1=-3

m_2=1.5,b_2=4

Since the slopes of the lines are equal but the y-intercepts are different, therefore, the two lines are parallel and the system has no solution.

Therefore, the correct option is A.

5 0
3 years ago
Find the x value for point C such that AC and BC form a 2:3 ratio.
Veronika [31]
The answer is B.-0.6
6 0
3 years ago
Read 2 more answers
Solve the equation: 16 = 2x - 6
Tom [10]

the answer 11

Step-by-step explanation:

6+16=22

22÷2=11

6 0
3 years ago
Read 2 more answers
WILL GIVE BRANLIEST PLEASE PLEASE HELP OR AT LEAST COME LOOK WILL BE FOREVER GREATFUL!!!!
BigorU [14]

Answer:

1. tan (4π/3) = √3

Answered by GAUTHMATH

5 0
3 years ago
A sweater normally cost $35 there is a 25% discount what is sale price of the sweater? Include the $
Lerok [7]

Answer:

Sale price= $26.25

Step-by-step explanation:

Giving the following information:

Selling price= $35

Discount rate= 25%

<u>To calculate the sale price of the sweater, we need to use the following formula:</u>

<u></u>

Sale price= selling price*(1 - discount rate)

Sale price= 35*(1 - 0.25)

Sale price= 35*0.75

Sale price= $26.25

8 0
3 years ago
Other questions:
  • Solve:<br> (x+10) - (x-1)
    9·1 answer
  • How many unit cubes are found in a right rectangular prism
    11·1 answer
  • I don’t know it tried solving it but couldn’t find it
    8·2 answers
  • Joe bought g: gallons of gasoline for $2.85 per gallon and c: cans for oil for 3.15 dollars.
    7·1 answer
  • Pythagoras.someone help
    15·1 answer
  • the pressure of a gas in a container is 152 mm hg. This is equivalent to _____. 0.300 atm 2.00 atm 0.400 atm 0.200 atm
    13·2 answers
  • Which one of the following statements expresses a true proportion?
    10·1 answer
  • Jacob rode his bicycle 8 km in 2 h, stopped to change a flat tire, and then completed his trip by riding 4 km in 1.2 h.
    9·1 answer
  • What is the value of x?<br><br> Enter your answer in the box.
    9·2 answers
  • Seis grifos, tardan 10 horas en llenar un
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!