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

I subtract from it.The answer is 8

Answers

Answer:

To check your work, 8 + 8 is 16

Step-by-step explanation:

need bwainlist to maybe u can help out chika???

Angela drew the two quadrilaterals shown. The second is a scale drawing of the first. What scale factor did Angela use to draw the second quadrilateral?

Answers

she used the factor 3, she multiplied 5 by 3 and 7 by 3
main answer is just 3

Bir kırtasiyeci aldığı kalemlerin tanesini
2 liradan satarsa 40 lira kâr, 1,5 liradan
satarsa 20 lira zarar ediyor.
Bu kırtasiyeci kaç kalem alıp satmış-
tır?
A) 125 B) 120 C) 115 D) 110​

Answers

Answer: Option B: 120.

Step-by-step explanation:

I will answer in English

This problem can be translated to:

A man bought N pens, (at a cost C) if he sells each pen at 2 lira, he will have a profit of 40 lira.

If he sells each pen at 1.5 lira, he will loss a total of 20 lira.

We want to find N, the number of pens that he bought.

if he sells the N pens at 2 lira each, the revenue is:

N*2 lira

And the profit is the difference between the revenue and the cost, then the profit (40 lira in this case) is:

N*2 lira - C = 40 lira.

When he sells each pen at 1.5 lira the equation is:

N*(1.5 lira) - C = -20 lira.

Then we have two equations:

N*2 lira - C = 40 lira.

N*(1.5 lira) - C = -20 lira.

To solve this we need to isolate the variable C in one of the equations, i will isolate C in the second equation:

N*(1.5 lira) + 20 lira = C.

Now we can replace this in the first equation to get:

N*(2 lira) - (N*(1.5 lira) + 20 lira) = 40 lira.

We can solve this for N.

N*(2 lira) - N*(1.5 lira) - 20 lira = 40 lira

N*(2 lira - 1.5 lira) = 60 lira

N*(0.5 lira) = 60 lira

N = (60lira/0.5lira) = 120

N = 120

This means that he bought 120 pens.

The correct option is B.

1. f(x) = x^3– 4x^2 – 7x + 10

Answers

9514 1404 393

Answer:

  zeros: {-2, 1, 5}

Step-by-step explanation:

A graphing calculator works nicely for identifying turning points, roots, increasing/decreasing intervals, and more.

I think it’s A but I need help double checking!

Answers

Yea it’s A good work

28 = 7(n + 3) what does this mean

Answers

Answer:

I don't know the answer to this

7 times 4= 28. so n would equal 1. because 7x(1+3)=28. so n=1. hope that helps

Janelle is going to buy a new skateboard. The regular price is $165 but she can receive a 30% discount. How much will she pay for the skateboard l if she receives the discount?

Answers

Answer:

$115.5

I have to write 20 characters

What is the answer
5+7+9+8=

Answers

Answer:

29

Step-by-step explanation:

Describe and correct the error in solving the equation. Help so I can pass math

Answers

Answer:

you subtract seven not add it.

Step-by-step explanation:

jus trust

Answer:

Step-by-step explanation:

Should subtract 7 not add.

x + 7 = 13

  -7      -7

x       = 6.

Which of the following points is between 50 and 60 units away from (7, -2)?
a) (23,4)
b) (14,-6)
c) (60,-2)
d) (-1,9)

Answers

Im pretty sure the answer is c.

A book sold 34,200 copies in its first month of release. Suppose this represents 8.8% of the number of copies sold to date. How many copies have been sold to date?

Answers

388,636.36 copies have been sold

Hi can you please help me with #11, & 12? Please show all your work.
Thank you in advance

Answers

9514 1404 393

Answer:

  11.  (-4, -1)

  12.  (2, 7)

Step-by-step explanation:

The midpoint is the average of the end point coordinates. For segment AB, the midpoint M is ...

  M = (A+B)/2

If you have A and M, you can find the other end point B from ...

  2M = A+B . . . . multiply the above equation by 2

  B = 2M -A . . . . subtract A from both sides

__

11. The midpoint (M) is ...

  M = ((-1, 2) +(-7, -4))/2 = (-1-7, 2-4)/2 = (-8, -2)/2

  M = (-4, -1)

__

12. The missing end point is ...

  Z = 2Y -X

  Z = 2(-4, 8) -(-10, 9) = (2(-4)+10, 2(8) -9)

  Z = (2, 7)

Ariel spent a total of $3.42 buying dried apricots from the bulk bins, which were on sale for $2.85 per pound. To the nearest tenth of a pound, how many pounds of dried apricots did Ariel buy?

Answers

Answer:

1.2

Step-by-step explanation:

Just do 3.42/2.85 and u get 1.2 pounds.

Answer:

1.2 lbs

Step-by-step explanation:

3.42 (amount spent)/2.85(amount per pound)

Solve for x: one over five (5x + 12) = 18 (5 points)

a
seventy-eight over five

b
one hundred-two over five

c
6

d
30

Answers

Step-by-step explanation:

(1x+12/5)=18

X=18-12/5

X=15..6

Answer:

hello

Step-by-step explanation:

if 8 equals 40 grams how much is 64 grams

Answers

Answer:

320 grams

Step-by-step explanation:

First you find out how much 1 bat ate

40 divided by 8 = 5

So each bat ate 5 insects

Multiply 5 by the 64 bats

64 * 5 = 320

An equation is modeled.



What value of x makes the equation true?
(MATH HELP) 7TH GRADE MATH

Answers

Answer:

c

Step-by-step explanation:

(-1)x5= -5

-5+6=1

Answer:

The answer is C.

Step-by-step explanation:

I need an answer for 5/6x4. I appreciate the effort in helping. Sorry im not very good at fractions

Answers

Answer:

3.33

Step-by-step explanation:

Answer:

3 1/3

Step-by-step explanation:

5/6 x 4 = 3 1/3

If pp is inversely proportional to the square of qq, and pp is 28 when qq is 3, determine pp when qq is equal to 2

Answers

Answer:

448

Step-by-step explanation:

[tex](p1)(q1)^2=p2(q2)^2\\p1(2)^2=28(8)^2\\p1=(4)=28(64)\\4p1=1792/4\\p1=448[/tex]

Value of [tex]\boldsymbol{pp}[/tex] is [tex]\boldsymbol{\frac{112}{9}}[/tex]

Inverse Relation

[tex]pp[/tex] is inversely proportional to the square of [tex]qq[/tex]

So,

[tex]\boldsymbol{pp=\frac{(qq)^2}{k}}[/tex] where [tex]k[/tex] is a constant.

Put [tex]pp=28,qq=3[/tex]

[tex]28=\frac{3^2}{k}\\28=\frac{9}{k}[/tex]

[tex]\boldsymbol{k=\frac{9}{28}}[/tex]

So,

[tex]pp=\frac{28}{9}(qq)^2[/tex]

Put [tex]qq=2[/tex]

[tex]pp=\frac{28}{9}(2)^2\\ pp=\frac{112}{9}[/tex]

So, value of [tex]\boldsymbol{pp}[/tex] is [tex]\boldsymbol{\frac{112}{9}}[/tex]

Find out more information about inverse proportion here:

https://brainly.com/question/2548537?referrer=searchResults

what is 50 x 60 huh who knows

Answers

Answer:

300

Step-by-step explanation:

What is the area of this figure?

Answers

Answer:

75.398

Step-by-step explanation:

Mark buys 3 2/5 pounds of apples. He uses 2/3 of the apples in a recipe. Which of the following expressions can be used to find the number of pounds of apples that Mark uses? A: 2/3 + 2/3 + 2/3 + 2/5 B: 2/3 x 17 3 x 5 C: 2/3 x 6/5 D: 2/3 x 3 + 2/3 x 2/5

Answers

Answer:

b

Step-by-step explanation:

jayfeather friend me

4
a. In the box below, type a division sentence for this repeated subtraction sentence.
24 - y - y - y - y - y - y - y - y = 0

Answers

56x y = 19 plus the rounder (45x 20)

For what value(s) of x is the expression undefined?
х/(x+2)(x-3)
a) 0, 2, 3
b) -2,3
c) 2, -3
d) -2,-3
Choose

Answers

Answer:

Answer b): -2, 3

Step-by-step explanation:

Recall this is a rational function with vertical asymptotes at the points where the denominator becomes zero. That is:

for x = -2 (that brings x+2 = 0)  and for x = 3 (that brings x - 3 = 0)

Therefore, select answer b).

1.5(a + 2) + 1.5a = 11.7

Answers

Answer:

2.9

Step-by-step explanation:

Given that the function g is defined by the rule g(x)=3-2x,determine the following

g(a)=

Answers

Answer:

The value of g(a) is:

[tex]g(a) = 3 - 2a[/tex]

Step-by-step explanation:

Given

As the function is given by

[tex]g(x)=3-2x[/tex]

To determine

g(a) = ?

Given the function

[tex]g(x)=3-2x[/tex]

substitute x = a in the function

[tex]g(a) = 3 - 2(a)[/tex]

[tex]g(a) = 3 - 2a[/tex]

Therefore, the value of g(a) is:

[tex]g(a) = 3 - 2a[/tex]

What is an equation of the line that passes through the points (-7, 3)
and (-4, 3)?

Answers

Answer:

Step-by-step explanation:

(3-3)/(-4+7)= 0/3= 0

y - 3 = 0(x + 7)

y - 3 = 0

y = 3

Given J(x-8) and k(-1,-5) and the graph of line below find the value x so that jk

Answers

Where’s the graph of the line?

Answer:

x=10

Step-by-step explanation:

Would you prefer a high or low-interest rate for a savings account? for a loan? Explain for both.

Answers

explanation:

Low interest rates are better than high interest rates when borrowing money, whether with a credit card or a loan. A low interest rate or APR (annual percentage rate) means you're paying less for the privilege of borrowing over time. High interest rates are only good when you're the lende

-by TheRealMarinette

The length of a rectangular frame is 4 inches longer than twice the width. If the perimeter is 38 inches, find the dimensions of the frame.
WILL GIVE WHOEVER ANSWERS BRAINIEST

Answers

Answer:

The width of the rectangle is 20 inches, and the length is 36 inches.

Step-by-step explanation:

2(2x-4) + 2x = 112

4x - 8 + 2x = 112

6x - 8 = 112

6x = 120

x = 20

I hope this helps️️

t-shirts for $2 and shorts for $4. the total sales were $600. they sold four times more tshirts than shorts how many tshirts and shorts did they sell?​

Answers

Answer:

T-shirts: 200

Shorts: 50

Step-by-step explanation:

To solve, set up an equation using two variables to represent the number of t-shirts and shorts sold.  Let x = t-shirts sold. Let y = shorts sold.  2x + 4y = 600.    We know that x will be 4 times greater than y, so we can plug in some guesses that seem reasonable and use the equation to test our theories.  My first guess was 50 shorts, which by luck was the correct answer.  These problems can be tricky, but setting up an equation can prove to be a great help.

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