Travelling with a current, a boat covers a distance 1.5times greater than travelling against the current in the same amount of time. What is the speed of the boat in still water if the speed of the current is 1.5 mph

Answers

Answer 1
Let the speed of the current equal c
and the speed of the boat in still water equal b.

b + c = 1.5 (b - c)
b + c = 1.5b - 1.5c
0.5b = 2.5c
b = 5c

The speed of the current is 1.5 mph so
b = 5 * 1.5 = 7.5 mph

Related Questions

Consider the sequence 4,-12,36,-108... is it a arithmetic sequence or a geometric sequence justify your answer

Answers

Answer:

Geometric Sequence

Step-by-step explanation:

It's a geometric sequence because it has a common ratio of -3.

I NEED HELP FAST Zane is determining whether the given value of the variable is a solution of the equation.

13 + h = 21 for h = 9

What steps should Zane take? Check all that apply.
Substitute 9 for the variable h.
Substitute 21 for the variable h.
Simplify by adding 13 and 21.
Simplify by adding 13 and 9.
21 = 21, so 9 is a solution to the equation.

Answers

There are two ways to verify whether the value of ( h ) assumed to be equal to 9 satisfies the given equation:

                          13 + h = 21

                          13 - 13 + h = 21 - 13

                           0 + h = 8

                           h = 8                

                           8 ≠ 9    

 

                          13 + ( 9 ) = 21

                              22 = 21

                              22 ≠ 21

 3) Conclude: The given value of ( h ) is not a solution of the given equation.

i need help asap due tonight

Answers

Answer:

3 bucks

Step-by-step explanation:

Answer:

d=3

Step-by-step explanation:

if the whole thing equals 19, and you know that part of it is 10, that leaves the rest of it to be 9. the rest is divided into 3s, if you know the whole section is 9 then all you would have to do is divide 9 by 3 and that would get you 3

2x+4x+7
i nered helpp

Answers

Answer:

6x + 7

Step-by-step explanation:

2x + 4x +7

(2 + 4)x  + 7

    6x    + 7

Answer:

combine like terms 6x+7

A lake is regularly fished by 200 fishermen. A study has found that 31% of the fish
in a lake are bass. Scientists determine there are approximately 16 000 fish in the
lake and that no more than one quarter of any type of fish should be taken out of
the lake in a year if the species is to survive. What is the limit on the number of
bass for each fisherman in one year?*
SHOW ALL STEPS OF YOUR CALCULATIONS

Answers

Answer:

Step-by-step explanation:

I think I had this question

HELP NOW PLEASSEE ! Find the mean absolute deviation

Answers

Mean absolute deviation (MAD) of a data set is the average distance between each data value and the mean. Mean absolute deviation is a way to describe variation in a data set. Mean absolute deviation helps us get a sense of how "spread out" the values in a data set are.

Glenda sells coffee for 50¢ and empanadas for $2 at the park on the weekends. One Saturday she
sold 90 items and made $105. How many coffees did she sell?

Answers

Answer:

50 coffees

(and 40 empanadas)

Step-by-step explanation:

x= coffee y=empanadas

.5x+2y=105

x+y=90

Isolate a variable

x+y=90

x-90= -y

-x+90=y

Plug this in for y in the other equation

.5x+2(-x+90)=105

Solve for x

.5-2x+180=105

-1.5x= -75

x=50

we can stop here but that's lame so let's figure out how many empanadas she sold

we know that x=50 so we can just plug this into either beginning equation and solve for y

50+y=90

y=40

2.12 Graded Assignment: Basic Geometric Shapes - Part 2

Answers

Answer:

ohh easy, u commin home yet

Step-by-step explanation:

dad this u?

Step-by-step explanation:

For 1A

2y + 98° = 9y + 7° < being vertically opposite angles >

9y - 2y = 98° - 7°

7y = 91°

y = 13°

For 1B

9y + 7° = 9 * 13° + 7° = 124°

2y + 98° = 2 * 13° + 98° = 124°

The angles which are unknown are also vertically opposite angles so let unknown angles be x then

124° + 124 ° + x +x = 360° { being complete turn }

248° + 2x = 360°

2x = 112°

x = 56°

so all angles are 124° , 124° , 56°, 56°

For 2A

6y - 10 + 6y + 10 = 180° ( being linear pair)

12y = 180°

y= 15°

For 2B

6y - 10 = 6 * 15 - 10 = 80°

6y + 10 = 6 * 15 + 10 = 100°

Hope it will help :)

What is the value of X in this question?? I need help please!

Answers

Answer:

The value of x would be 23

Step-by-step explanation:

You must first find the angles of triangle CDE. So to find angle C you must know that a straight line is equal to 180 degrees, 180-117=63 So angle C would  be 63 degrees. Angle D is congruent to Angle B so Angle D would equal 24 Degrees. Then to find the angle of Angle E simply subtract 87 from 180 (You Get 87 From Adding 24 and 63), 180-87=93. Know that you know that Angle E is 93 Degrees set up the equation, 4x+1 = 93 SOLVE.

4x+1=93

4x = 92

x = 23.

Marks car get 32 mpg. He is planning a road trip from Miami to Atlanta. he plans to drive 200 miles. the first day and 480 the next. How many more gallons will he use the second day compared to the first.

Answers

Answer:8.75 gallons

Step-by-step explanation:

well first his car drives 32 mpg, so with this info you divide 200 by 32.Which is 6.25 gallons.Then do the same with 480,480 divided by 32 which is 15 gallons.subtract it 15-6.25 which is 8.75.8.75 more gallons is the answer.

Correct answer:

8.75 more gallons used the second day compared to the first day

94 – 3( -7 + ( 5 – 8 ) ^2 )

Answers

Answer:

142 is the correct answer (PEMDAS)

Diana had 41 stickers. She put them in 7 equal groups. She put as many as possible in each group. She gave the leftover stickers to her sister. How many stickers did Diana give to her sister?

Answers

She gave her sister 6 stickers. 41 divided by 7 = 5 with a left over of 6 stickers left.

Answer:

5 to each group and she gave 6 stickers to he sister


Sarah paid $27.50 for 2 shirts. Each shirt costs the same amount.
Let n equal the cost of one new shirt.
• Create an equation that can be used to find the cost, in dollars, of n shirts.
• What is the cost of one shirt? $13.75

What is the equation??

Answers

Answer:

27.50 divided by 2

Which statement about the angles in the figure is true?
Helppp

Answers

9514 1404 393

Answer:

  m∠1 +m∠8 = 90°

Step-by-step explanation:

There is no necessary sum relation between angles 3 and 5 or angles 7 and 10. The only thing you can say about those angle pairs is ...

  ∠3 + 90° = ∠5

  ∠10 +90° = ∠7

Angles 8 and 9 are congruent, so don't have any necessary sum.

Angle 1 is congruent with angle 3, which is complementary to angle 8, so we must have ...

  m∠1 +m∠8 = 90°

Jack's Plumbing charges customers $100 per hour for repair jobs. A-1 Plumbing charges according to
the equation y = 75x + 50, where x = time in hours and y = cost in dollars.
Explain why A-1 Plumbing charges less than Jack's Plumbing for a 4-hour repair job.
Does A-1 Plumbing charge less than Jack's Plumbing for all repair jobs? Explain why or why not.

PLEASE HELPP

Answers

Answer:

37/3

Step-by-step explanation:

(-12/45)+15/35-12/45+15/35 slove step vise​

Answers

Answer:

[tex]\frac{35}{105}[/tex]

Step-by-step explanation:

I have to use sin, cos, and tan on this problem and I'm stumped.​

Answers

Answer: ahhh boohoo. Where’s the photo

Step-by-step explanation:

Ba

A gift card stores data using a black, magnetic stripe on the back of the card. Find the width w of the stripe.

Answers

The width of w is 0.90 cm.

Find the length of the sides:

The first step to solve this problem is to find how long is each side.  About this, we know one side is 8 1/2 cm or 8.5 but the other side is not exactly given (4cm + w + 2/3 w). To determine the length of this size, use the area formula:

A = side a x side bSide b = A / side aSide b = 46.75 / 8.5Side b 5.5

Find the length of w:

The total length of the side - known side

5.5 - 4 = 1.5

This means w + 2/3 w (0.66 w) is equal to 1.5

Find w:

w + 2/3 w = 1.5w + 0.66w = 1.51.66 w = 1.5w = 1.5/ 1.66w =  0.90 cm

Learn more about width in: https://brainly.com/question/3133832

Rewrite the fraction 63/70 in simplest form

Answers

7/8 is the lowest fraction

Answer:

9/10

Step-by-step explanation:

If you divide both the numerator and the denominator by 7 you get 9/10 and you cannot simplify this fraction any further. (Double check to make sure I'm correct)

Review: Jen sells flowers. She charges $2 per flower plug a $3 flat delivery fee. How many flowers did she deliver if she made $21?

Answers

Answer:

she delivers 9 flower plugs.

Step-by-step explanation:

in a standard equation the equation would be 21 = 2x + 3 and if you isolate the x you would have to first subtract the 3 from both sides and that would leave you with 18 = 2x and then you have to divide both sides by 2 and get 9=x

what is the total number of yards lost or gained ​

Answers

-3.5x3= -10.5 -10.5+7.4= -3.1 -3.1+1= -2.1

Answer: -2.1 yards

Mathematics, I want the answer only.

Answers

Hope this helps

Answer: 60

Answer:

[tex]a^{2}[/tex]+[tex]b^{2}[/tex]=60

Step-by-step explanation:

the answer is A

Which ordered pair must be a solution in the graph of the linear inequality
below?
A. (0, -1)
B. (1,2)
C. (-5,1)
D. (0,0)

Answers

Answer:

it is c and you also use something called desmos to help you with graphing questions

Tanvi finds that her robot vacuum can clean her 150-square-foot kitchen in 1 of an hour. How
many square feet could the robot vacuum clean in 1 hour?
Simplify your answer and write it as a proper fraction, mixed number, or whole number.
square feet
Submit
X X Practice in the app
Wariant

Answers

Answer:

300

Step-by-step explanation:

PLEASE HELP ITS URGENT
12. Carla is lying on the ground between two trees in her backyard. She is 67 feet from the tree to her left. The angle of elevation from her eyes to the top of the tree on the left is 50°. Carla is 75 feet from the tree to her right and the angle of elevation from her eyes to the top of that tree is 36°. a. Determine the height of each tree to the nearest foot. Show your work. b. State which tree is taller, and by how much.

Answers

Answer:

the left tree is taller

Step-by-step explanation:

shown in work above :)

The first tree is taller than the second tree by 25.3 ft.

We have to use the trigonometric ratios and angle of elevation to obtain the height of each tree as follows;

Let the height of the first tree be h1 and the height of the second tree be h2.

For the first tree;

tan 50° = h1/67

h1 = 67 tan 50° = 79.8 ft

For the second tree;

tan 36° = h2/75

h2 = 75tan 36°

h2 = 54.5 ft

The first tree is taller than the second tree by 25.3 ft.

Learn more about angle of elevation: https://brainly.com/question/12483071

If you invest $2400 at an annual rate of 4.5% that is compounded continuously, how long will it take for your money to double in value? Round to the nearest tenth of a year Hint: use $4800 for A

Answers

Answer:

It will take 13.71 years

to double your investment

at 5.25% annual interest. (actual years = 13.55)

Step-by-step explanation:

i think  its  right  if  not  am  sorry

science 8th grade 10 pts
What best explains the relationship between photosynthesis and cellular respiration?

The higher the rate of formation of products in respiration, the lower the rate of photosynthesis.
Photosynthesis depends on the carbon dioxide released during cellular respiration.
Cellular respiration depends on the water released during photosynthesis.
They have the same set of product molecules.

Answers

Answer:

Photosynthesis depends on the carbon dioxide released during cellular respiration.

Step-by-step explanation:

Mark buys 250 carnival tickets. He uses 30% of the tickets on food and 50% of the tickets on games and rides. How many tickets does Mark have left?

Answers

Answer:

50.

Step-by-step explanation:

50+30 =80%. 80% of 250 is 200. so he used 200 and now left with 50

What is the measure (in radians) of central angle 0 in the circle below? Enter an exact expression.

Answers

Answer:

[tex] \frac{\pi^{c} }{3} [/tex]

Step-by-step explanation:

Measure of the length of an arc of a circle is given as:

[tex]l = \frac{ \theta}{2\pi} \times 2\pi r \\ \\ \pi = \frac{ \theta}{2\pi} \times 2\pi \times 3 \\ \\ 3 \theta = \pi^{c} \\ \\ \theta = \frac{\pi^{c} }{3} \\ [/tex]

6. Let E, F, G be three events. Find expressions for the events that of E, F, G a. only E occurs; b. both E and G but not F occur; c. at least one of the events occurs; d. at least two of the events occur; e. all three occur; f. none of the events occurs; g. at most one of them occurs; h. at most two of them occur; i. exactly two of them occur; j. at most three of them occur.

Answers

Answer:

a.) only E occurs :

E((FUG)')

b.) both E and G but not F

EG(F')

C.) Atleast one of the events :

(E U G U F)

d.) Atleast two of the events

(EG U EF U GF)

E.) all three occurs

(EGF)

F.) none of the events occur :

(E U G U F)'

G.) At most one of the events occur

(EG U EF U GF)'

H.) at most two of them occur

(E' U G' U F')

I.) exactly two of them occur;

(EG U EF U GF) * (EGF)'

j. at most three of them occur.

EFG U (EFG)'

Step-by-step explanation:

Events = {E, F, G}

a.) only E occurs :

E((FUG)') ; E and not F or G

b.) both E and G but not F

EG(F') ; both E and G and not F

C.) Atleast one of the events :

(E U G U F) ; Either E or F or G

d.) Atleast two of the events

(EG U EF U GF) ; Either EG or EF or GF occurs

E.) all three occurs

(EGF) ; All three events, E, G and F occurs

F.) none of the events occur :

(E U G U F)' ; Neither E, G nor F occurs

G.) At most one of the events occur

(EG U EF U GF)' ; complement of atleast two) at most one

H.) at most two of them occur

(E' U G' U F') ; Either E , F or G does not occur

I.) exactly two of them occur;

(EG U EF U GF) * (EGF)' ; Exactly two events occurs and all three events Do not occur

j. at most three of them occur.

EFG U (EFG)' ; All three events occur union all three events do not occur

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