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
Savatey [412]
3 years ago
7

Estimate the solution to the equation 3.1g = 20.9 to the nearest whole number. about 7 about 8 about 10 about 5

Mathematics
2 answers:
lubasha [3.4K]3 years ago
8 0
Divide both sides by 3.1 and find g = 20.9/3.1 ≈ 6.7 ≈ 7.
You can estimate this without a calculator by saying 20.9 ≈ 21 and 3.1≈3, then 21/3=7.

In general, be careful with rounding before a calculation, because the rounding errors can be enlarged, messing up the accuracy of your answer. It's best to round only at the end.
Harman [31]3 years ago
3 0

Answer:

the correct answer is 7

You might be interested in
Help find slope of each line
gizmo_the_mogwai [7]
Slope=-5

as the line goes 5 down and 1 right
3 0
3 years ago
Read 2 more answers
What is the distance between points v (3,3) and w (-2,-3) round to the nearest tenth if necessary
Vinil7 [7]

Answer:

7.81 u

Step-by-step explanation:

<u>Given :- </u>

  • Two points (3,3) and (-2,-3) is given to us.

And we need to find out the distance between the two points . So , here we can use the distance formula to find out the distance. As,

:\implies D = √{(x2-x1)² + (y2-y1)²}

:\implies D =√[ (3+2)² +(-3-3)²]

:\implies D =√[ 5² +6²]

:\implies D =√[ 25 +36]

:\implies D = 61

:\implies D = 7.81

<h3>Hence the distance between the two points is 7.81 units .</h3>
6 0
3 years ago
9. ax + by = (a - b), bx - ay = (a + b)​
mart [117]

Answer: give me brainliest

Step-by-step explanation:

ax+by=a-b

ax=a-b-by

x=a-b-by/a←

bx-ay=a+b

substituting

b(a-b-by/a)-ay=a+b

ab-b²-b²y/a-ay=a+b

ab-b²-b²y-a²y/a=a+b

ab-b²-(b²+a²)y=a²+ab

-(b²+a²)y=a²+ab-ab+b²

(b²+a²)y=-(a²+b²)

y=-(a²+b²)/a²+b²

y=-1←

substituting value of y

x=a-b-b(-1)/a

x=a-b+b/a

x=a/a

x=1

8 0
2 years ago
Write an equation in point-slope form of the line that passes through the given point and has the given slope. (-6, 2); m = 3​
pashok25 [27]

Answer:

there

Step-by-step explanation:

3 0
3 years ago
What is the cost of operating a 3.00-w electric clock for a year if the cost of electricity is $0.0900 per kw · h ?
brilliants [131]
We must take into account the following change of units:
 1kw = 1000w&#10;&#10;1 year = 365 days&#10;&#10;1 day = 24 hours
 Applying the change of units we have that the electric consumption for 1 year is given by:
 (3) * (1/1000) * (365) * (24) = 26.28 kw * h&#10;
 Then, the total cost is given by:
 (26.28) * (0.0900) = 2.3652&#10;
 Answer:
 
the cost of operating a 3.00-w electric clock for a year is:
 
$ 2.3652
8 0
3 years ago
Other questions:
  • A circle has a diameter with endpoints (7, -7) and (5, -3). What is the equation of the circle?
    11·1 answer
  • A triangle has a height that is 2 inches more than three times the base and an area of 60 in. Find the base and the height of th
    10·1 answer
  • Plzzzzzzzzzzz Need Fast 15 points
    11·2 answers
  • Use the pattern for (a+b)^5 to write the fourth term of (w-4z)^5
    10·1 answer
  • What is the unit rate in miles per hour of 8 miles in 45 minutes
    10·1 answer
  • Mr. Bell's bank pays 5% interest annually. He has
    6·2 answers
  • (11 + 3x ^ 3) + (4x ^ 2 - 2) + 3x
    5·1 answer
  • Suppose you analyze a two-factor ANOVA with replication using Excel. The following p-values are returned: Factor A: p = .0268 Fa
    7·1 answer
  • I'll give brainliest!!!! help!
    14·2 answers
  • Michael started his first job and was paid $521 per week. Michael’s grandmother gave him $220. Generate an equation in the form
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!