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
denpristay [2]
3 years ago
8

Two towns are 80km apart. Sylvia wants to drive from one town to the other in exactly one hour. For the first 30minutes she driv

es at a rate of 60km/h. At what constant rate must she drive for the next 30minutes if she is to accomplish her goal?
Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
5 0

Answer:

100 km/hr

Step-by-step explanation:

First Leg:

Speed = 60 km/h

Time = 30 min = 0.5 h

1st leg distance = speed x time = 60 km/hr x 0.5hr = 30 km

Second Leg:

Distance remaining = 80 km - 30 km = 50 km

Time = 30 min = 0.5 h

speed = distance / time = 50 / 0.5 = 100 km/hr

You might be interested in
5 x 10^5 is how many times as large as 1 x 10^5?
Oxana [17]

Answer:

  5 times as large

Step-by-step explanation:

You can think of "10^5" as "green marbles" if you like. Then your question is ...

  5 green marbles is how many times as large as 1 green marble.

Hopefully, the answer is all too clear: it is 5 times as large.

_____

In math terms, when you want to know how many times as large y is as x, the answer is found by dividing y by x:

  y/x . . . . . tells you how many times as large as x is y.

Here, that looks like ...

  \dfrac{5\times 10^5}{1\times 10^5}\\\\=\dfrac{5}{1} \qquad\text{the factors of $10^5$ cancel}\\\\=5

4 0
3 years ago
Read 2 more answers
$180 car 15% discount
tatiyna

Answer:

$153

Step-by-step explanation:

180 * 0.85 = 153

3 0
3 years ago
Read 2 more answers
Solve for b.<br><br> b + -78 = 10
love history [14]
The answer is b=88

Hope this helped!

3 0
3 years ago
3. Find the number which is 32,586 more than 87,65,432.
sweet [91]

Answer:

3. 8,798,018

4. 4,782,125

5. 156,432,332

6. 4,581,865

7. 4,594,375

8. 3,672,050

9. 7,272,925

10. 3,979,150

6 0
3 years ago
The sum of 4 times a number and 7 equals 9
Reptile [31]

Answer:

0.5

Step-by-step explanation:

0.5 x 4 = 2, 2 + 7 = 9

4 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me with both of these questions.
    14·1 answer
  • Which polynomial does the model represent?
    10·1 answer
  • Please don't get it wrong!!
    9·1 answer
  • Jada drew a net for a polyhedron and calculated its surface area.
    8·2 answers
  • Question: Solve the system by the substitution method. y = -4x - 10 2x + 5y = -14
    11·1 answer
  • What is the equation of the line that passes through (-5, 7) and is parallel to the line y = 4x + 5?
    7·1 answer
  • ABC has A(-3,6),B(2,1),and C(9,5) as its vertices the length of side AB is units . The length of side BC is ?units . The length
    7·1 answer
  • Which expression can you simplify by combining like terms?
    6·1 answer
  • Find the missing fraction worksheet 5 1/2 + ? = 7
    8·1 answer
  • PLEASE HELP ME PLEASE
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!