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
cluponka [151]
3 years ago
13

Biruk wants to buy a book for $15.25 and a book for $4.85. He wants to pay with one $20 bill. Use estimation to decide if this i

s reasonable. Explain to what place value to round for an estimate that is useful in this situation.
Mathematics
2 answers:
ycow [4]3 years ago
8 0
First round 15.25 to 15.30 and round 4.85 to 4.90 and then add you get 21.20  no it is not reasonable and you round to the decimal ones
Aloiza [94]3 years ago
6 0

Answer: It's not reasonable.

Step-by-step explanation:

Hi, to answer this question we have to add both book’s prices:

15.25 + 4.85 = $20.1

If he wants to pay with one $20 bill, it wouldn’t be reasonable, because:

20 <20.1

For an useful estimate, estimate to the nearest tenth:

15.30 +4.90 = 20.2

Still, he can’t afford the books because he is lacking 20 cents.

Feel free to ask for more if needed or if you did not understand something.

You might be interested in
An airplane travels 5040 kilometers against the wind in 9 hours and 6660 kilometers with the wind in the same amount of time. Wh
dmitriy555 [2]

Answer:

Wyzant

Question

Flying against the wind, an airplane travels 4200 km in 7 hours. Flying with the wind, the same plane travels 4000 km in 4 hours. What is the rate of the plane in still air and what is the rate of the wind?

Answer · 1 vote

Let Va = the velocity of the airplane Let Vw = the velocity of the wind When flying with the wind: (Va+Vw)*(4 hours) = 4000 4Va + 4Vw = 4000 4Vw = 4000 - 4Va Vw = 1000 - Va When flying against the wind: (Va-Vw)*(7 hours) = 4200 km7Va - 7Vw = 4200 Substitute 1000-Va for Vw and solve for Va: 7Va - 7(1000-Va) = 4200 7Va -7000 + 7Va = 4200 14Va = 11200 Va = 800 km/hr Rate of wind: Vw = 1000 - Va = 1000 - 800 = 200 km/hour

More

Socratic

Question

Flying against the wind, an airplane travels 4500 in 5 hours. Flying with the wind, the same plane travels 4640 in 4 hours. What is the rate of the plane in still air and what is the rate of the wind?

Answer · 0 votes

The speed of plane in still air is 1030 km/hr and wind

Step-by-step explanation:

6 0
2 years ago
How many minutes would it take the printer to use all 100 sheets of paper?
dybincka [34]
Do u have the amount of sheets the paper makes per minute?
5 0
3 years ago
Read 2 more answers
What is 3√243 expressed in simplest radical form?
Volgvan

Answer:

H is correct

Step-by-step explanation:

(243)^1/3

(3^3 × 3^2)^(1/3)

(3^3)^1/3 × (3^2)^1/3

3×(9)^1/3

3 0
2 years ago
What quadratic function f whose only zero is -6
Mrrafil [7]

Answer:

y=(x+6)^2

Step-by-step explanation:

Bc, the root has to be only -6

there fore x=-6

4 0
3 years ago
A.
Sophie [7]

Answer:

B.

Step-by-step explanation:

I graphed it but you could also use the y intercept to determine which function matches the graph

log(x+1)<u>+3</u>

the +3 at the end of the function makes the y-intercept positive 3

4 0
3 years ago
Other questions:
  • Laura fills a bucket at a rate 6L/min . At the same time Sarah empties a bucket holding 30 L of water at a rate of 9L/min . Let
    13·1 answer
  • ☆*☆=3x, if x is even and negative OR ☆*☆=4x, if x is odd. Following the rule above, what is the value of ☆ - 23 ☆?
    12·1 answer
  • Determine whether the sequence converges or diverges.
    5·1 answer
  • 5 is no greater than 4 times a number x minus 2.5
    14·2 answers
  • Here's a graph of a linear function. Write the
    6·1 answer
  • Most people think babies are equally likely to come as either a boy or a girl. This is not true. Actually, about 51.3% of all ba
    5·1 answer
  • Simplify 3-⁶×(3⁴÷ 3⁰)²
    8·1 answer
  • Which segment is a reflection of segment AB over the line x = 1?
    10·2 answers
  • 8. Kim works as a freelance writer and editor. She charges $14.12 per page for editing services and $0.20
    7·1 answer
  • JERMEY had 36 community concerts to sell he sold 2/3 of the tickets how many tickets did he sell
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!