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
balandron [24]
2 years ago
8

How do you calculate 278 × 11 using estimation?​

Mathematics
2 answers:
neonofarm [45]2 years ago
8 0

Answer:

2800

Step-by-step explanation:

round 278 to 280

then round 11 to 10

then times the 2 answers together

Olenka [21]2 years ago
8 0

Answer:

≈ 3080

Step-by-step explanation:

278 x 11 =

≈ 280 x 10 + 280

≈ 2800 + 280

≈ 3080

You might be interested in
If WXYZ is a kite, then the m
Greeley [361]

Answer:  So,. The sum of the measures of the angles of a quadrilateral is 360. Let m∠J = m∠K = x. ... CCSS SENSE-MAKING If WXYZ is a kite, find each measure. 24. YZ.

Step-by-step explanation:

7 0
3 years ago
if a population doubles every 5 years how many years would it take for the population to increase by 10 times original amount?
Alecsey [184]
25 years is the answer
7 0
3 years ago
The figure below shows two congruent triangular parks. What equation would help you to solve for the side length of BC and EF? E
Mrrafil [7]
2x - 3 = x + 5
and then solve as an algebra equation

3 0
3 years ago
Read 2 more answers
Does anyone know??? ???
Sidana [21]

Answer: The answer is D.) -2 and I'm correct :)

Step-by-step explanation:(-3,0) and (-4,2)

M=y2-y1

x2-x1

M= 2-0= 2

-4-(-3) = -1 ^Both equal to -2

4 0
3 years ago
On January 1, 2010, Joline deposits $1000 in a bank account that does not earn interest. For the next 12 months she deposits $25
hjlf

Answer:

$1000 + $25m and $1300 - 25m ;

1100 + 2.75m

2010 (4th month)

2011 ( 7th month)

Step-by-step explanation:

Joline's account :

Initial deposit = $1000

Monthly deposit = $25

Monthly withdrawal = $25

Number of months = 12

Let m = number of month at any point in time

Initial deposit + total deposit

Amount in Joline's account ; first 12 months

$1000 + $25m - - - (1)

Next 12 months :

$1000 + $25 *12 - 25m

1300 - 25m

Sofia's account :

Deposit amount = $1100

Interest per month = 0.25% = 0.0025

1100 + (1100 * 0.0025 * m)

1100 + 2.75m - - (2)

To find the month:

Equate equation 1 and 2, then find m

$1000 + $25m = 1100 + (1100*0.0025*m)

1000 + 25m = 1100 + 2.75m

25m - 2.75m = 1100 - 1000

22.25m = 100

m = 100 / 22.25

m = 4.494

In year 2010, they have approximately the same amount in the fourth month

1300 - 25m = 1100 + 2.75m

1300 - 1100 = 2.75m + 25m

200 = 27.75m

m = 200 / 27.75

m = 7.207

In 2011 ; they have approximately the se amount in the 7th month

4 0
2 years ago
Other questions:
  • To the nearest hundredth, what is the length of line segment AB ?
    12·1 answer
  • The width of a rectangle is 7 meters greater than its length. If the area of the rectangle is 170 square meters, write the quadr
    15·1 answer
  • [36÷(-9)+(+10)]÷7-[3+(-2-3).2]+1
    9·1 answer
  • Write an equation that models the sequence 6, 12, 24, 48... A) y = 6x B) y = 2x C) y = 6x2 D) y = 6(2x-1)
    15·2 answers
  • Please help! 20 points​
    8·2 answers
  • The quantity y varies directly as x and inversely as z. When x is 10 and z is 4, y is 15. What is y when x is 20 and z is 6?
    11·1 answer
  • 5000 ones = how many hundreds?
    13·1 answer
  • In a certain animal species, the probability that a female will have 0, 1, 2, 3, or 4 offspring in a given year is 0.31, 0.21, 0
    11·1 answer
  • B. What percent is 17 out of 40? ​
    9·2 answers
  • Emily has a road map with a key that shows an inch on the map equals 3 miles of actual distance. She will drive on two roads to
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!