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
Bingel [31]
2 years ago
9

WILL GIVE BRAINLIEST

Mathematics
2 answers:
sleet_krkn [62]2 years ago
4 0

Answer:


Step-bysteam boat (b) = speed of 36.8km/h. In 1.75 hours out same port and going same direction departed speed boat (s). In 1.8 hours later distance between the speed boat (s) and steam boat (b) was 86.9km


Scenario A) the steam boat (b) stays ahead of the speed boat (s)

-----------------------------------

Start by first finding the total distance (d) that the steam boat (b) traveled. That would be 1.75+1.8 = 3.55 hrs

distance (d) = rate (r) × time (t)

d(s) = rt = (36.8km/h)(3.55h) = 130.64 km

Secondly, let's subtract from d the distance between b and speed boat (s):

d(s) = 130.64 - 86.9km = 43.74 km

Thirdly, since s traveled 43.74 km and left 1.8 hrs ago, let's set-up the rate of b [r(b)] equal to that distance [d(s)] divided by the time 1.8 hrs.

**Since d = rt, r = d/t

r(s) = d(s)/t = 43.74km/1.8h = 24.3km/h


Scenario B) the speed boat (s) moves ahead of the steam boat (b), this is more likely!!

-------------------------------------

b moves before s starts for 1.75 hrs, going 36.8km/h, that distance ahead + distance it travels after the next 1.8 hrs = 130.64 km

Now s starts and travels d(s) km at r(s) km/h

If s speeds past b in 1.8 hrs, and is AHEAD by the given distance of 86.9km, then total distance of s [d(s)] = the 130.64 b traveled PLUS the 86.9 it is now ahead

d(s) = 130.64+86.9 = 217.54 km

s still only traveled that in 1.8 hrs, so the speed/rate of s is:

r(s) = d(s)/t = 217.54km/1.8h = 120.86km/h


** I think that makes more sense, that a speed boat would move MUCH faster than a steam boat, if 120.9... than over 3 times faster!!



Svetllana [295]2 years ago
3 0
Steam boat (b) = speed of 36.8km/h. In 1.75 hours out same port and going same direction departed speed boat (s). In 1.8 hours later distance between the speed boat (s) and steam boat (b) was 86.9km

Scenario A) the steam boat (b) stays ahead of the speed boat (s)
-----------------------------------
Start by first finding the total distance (d) that the steam boat (b) traveled. That would be 1.75+1.8 = 3.55 hrs
distance (d) = rate (r) × time (t)
d(s) = rt = (36.8km/h)(3.55h) = 130.64 km
Secondly, let's subtract from d the distance between b and speed boat (s):
d(s) = 130.64 - 86.9km = 43.74 km
Thirdly, since s traveled 43.74 km and left 1.8 hrs ago, let's set-up the rate of b [r(b)] equal to that distance [d(s)] divided by the time 1.8 hrs.
**Since d = rt, r = d/t
r(s) = d(s)/t = 43.74km/1.8h = 24.3km/h

Scenario B) the speed boat (s) moves ahead of the steam boat (b), this is more likely!!
-------------------------------------
b moves before s starts for 1.75 hrs, going 36.8km/h, that distance ahead + distance it travels after the next 1.8 hrs = 130.64 km
Now s starts and travels d(s) km at r(s) km/h
If s speeds past b in 1.8 hrs, and is AHEAD by the given distance of 86.9km, then total distance of s [d(s)] = the 130.64 b traveled PLUS the 86.9 it is now ahead
d(s) = 130.64+86.9 = 217.54 km
s still only traveled that in 1.8 hrs, so the speed/rate of s is:
r(s) = d(s)/t = 217.54km/1.8h = 120.86km/h

** I think that makes more sense, that a speed boat would move MUCH faster than a steam boat, if 120.9... than over 3 times faster!!
You might be interested in
12*11*35 is supposed to be 4260 right? Does anyone know the steps for this? (CBSE Grade 6)
slamgirl [31]
Step One: Line Up All the Digits. First, line up all of the numbers according to their place value.
Step Two: Multiply by the Ones Digit. ...
Step Three: Add a Zero Place Holder. ...
Step Four: Multiply by the Tens Digit. ...
Step Five: Add the Two Answer Rows Together.
6 0
2 years ago
HELP ASAP MARKING AS BRINLIST
weeeeeb [17]

Answer:

Because they are equal (Right angle)

Two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.

8 0
3 years ago
Read 2 more answers
he length of a rectangle is three times the width. The perimeter is 240 inches. Find the length and the width.
sammy [17]

Answer:

Length = 90 inch.

width = 30 inch

Let width of the rectangle = x inch.

So the length = 3x inch.

Perimeter = 2(length + width) = 2 (3x + x) = 8x.

So,

length = 3x = 3(30) = 90 inch.

width = x = 30 inch

4 0
2 years ago
Which scatterplot represents the data given in the table which shows the number of oranges in bags and the weights of the bags?
lisov135 [29]

Answer:

I would need to see an actual table to answer this question.

4 0
2 years ago
Read 2 more answers
Solve to find the value for x in the linear equation: 3(−4x + 5) = 12.
gtnhenbr [62]

Answer:

x=4

Step-by-step explanation:

3(-4x+5)=12

3(-4x) + 3(5)=12

-12x+15=12

<u> -15</u><u>=-15</u>

-12x=-3

-x = -4

Since your x is negative change the signs

8 0
2 years ago
Read 2 more answers
Other questions:
  • I don't understand this kind of math and need help
    14·1 answer
  • Two brothers went shopping at a back-to-school sale where all shirts were the same price, and all the shorts too. The younger br
    13·1 answer
  • What is the rate of change?​
    5·1 answer
  • What is greater 4yd or 13ft
    10·2 answers
  • Which of the following best describes the change in the mean when 1213 is
    10·1 answer
  • PLEASE HELP ME ASAP!! I HAVE ALREADY POSTED THIS LIKE TWICE!!!!!<br> I WILL AWARD BRAINLIEST!!
    8·1 answer
  • AB, CD, and EF are straight lines intersecting at point O. Find x.
    9·1 answer
  • Find the center and radius of the circle with equation (x+7)^2 + (y+5)^2 = 81
    9·1 answer
  • 11 exponent 8 times 11 -5/ 11 exponent 2
    14·1 answer
  • PLZ ANSWER THIS QUESTION I NEED IT NOW
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!