Toni rows a boat 4.5 km/h upstream and then turns around and rows 5.5 km/h back downstream to her starting point. If her total rowing time is 48 min, for how long does she row upstream? Express your answer to the nearest minute.


A. about 30 min

B. about 26 min

C. about 44 min

D. about 24 min

Answers

Answer 1

Answer:

b

Step-by-step explanation:


Related Questions

A truck has traveled 75 miles in 1.5 hours of driving. At the same speed, which proportion can be used to determine how long, T (in hours), it would take the truck to travel 325 miles.

Answers

Answer: 6.5 hours

Step-by-step explanation:

From the question, we are given the information that a truck has traveled 75 miles in 1.5 hours of driving. The miles pee hour travelled will be:

= 75 / 1.5

= 50 miles per hour

The number of hours that the truck will use to travel 325 miles will be:

= 325/50

= 6.5 hours

Question 4 (2 points)
Which equation represents a line parallel to the line whose equation is 2y - 5x = 10?
оа
2y + 10x = 8
Ob
4y - 10x = 12
OC
5y + 2x = 10
Od
5y-2x = 25
Question 5 (2 points)
What is the slope of the line perpendicular to the line represented by the equation 2x + 4y = 12?

Answers

Answer:

12

Step-by-step explanation:

The required equation of the line that is parallel to the given line is 4y - 10x = 12. Option B is correct.

Given that,
Which equation represents a line parallel to the line whose equation is 2y - 5x = 10 is to be determined.

What is the slope of the line?

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

Here,
The property of the parallel line state that the slope of the parallel line are always equal.
So the slope of line given in B 4y - 10x = 12 is m = 5 and slope of the given line is m = 5 which are equal.

Thus, the required equation of the line that is parallel to the given line is 4y - 10x = 12. Option B is correct.

Learn more about slopes here:

https://brainly.com/question/3605446

#SPJ2

I dont understand this... they do not teach well in my school tbh.

Answers

i believe the answer is D

Ms. Lynette earns $19.50 an hour when she works overtime. She worked overtime twice this week. One day she worked 3 hours of overtime. Her total overtime pay for the week is $146.25.

Write an equation to find the number of overtime hours she worked on the second day, x.

Answers

Answer:

146.25 divided by 2

Step-by-step explanation:

2x + 3y = -1
5r 2y = 12?

Answers

that’s correct i think:)
I think u are right

For each gym memberships sold, the gym keeps $42 and the employee who sold it gets eight dollars. What is the commission of the employee earned as a percentage of the total cost of the gym membership?

Answers

Answer:

i think 7

Step-by-step explanation:

Answer

is there it a multiple choice or just a word problem

Step-by-step explanation:

6th term 25,75,225,675,.... is it arithmetic or geometric. what's the explicit equation and the given term​

Answers

Answer:

see explanation

Step-by-step explanation:

There is a common ratio r between consecutive terms, that is

[tex]\frac{a_{2} }{a_{1} }[/tex] = [tex]\frac{75}{25}[/tex] = 3

[tex]\frac{a_{3} }{a_{2} }[/tex] = [tex]\frac{225}{75}[/tex] = 3

[tex]\frac{a_{4} }{a_{3} }[/tex] = [tex]\frac{675}{225}[/tex] = 3

This indicates the sequence is geometric with explicit formula

[tex]a_{n}[/tex]  = a₁ [tex](r)^{n-1}[/tex]

where a₁ is the first term and r the common ratio

Here a₁ = 25 and r = 3 , then

a₆ = 25 × [tex]3^{5}[/tex] = 25 × 243 = 6075

You want to limit the amount of television you watch to an average of at most 2 hours a week during and eight week period. How many hours x can you watch in the eight weeks to meet your goal.

Answers

Answer:

x = 16hours

Step-by-step explanation:

Given

Total number of hours to watch the television a week is 2 hours, that is;

2hours =1 week

We are to find the number of hours to watch in eight weeks to meet the goal

x hours = 8 weeks

Divide both expressions;

2/x = 1/8

Cross multiply

1 * x = 2*8

x = 16

Hence he will use 16hours to watch the television in 8 weeks

In parallelogram EFGH if GJ=15 find JE.
F
E
H

Answers

Answer:

15

Step-by-step explanation:

So point j is the midpoint of both of the diagonals in the parallelogram.

That means that JE=GJ

So the answer is 15

how many subsset can be obtained from the set A={ m, a ,t ,h}​

Answers

Answer:

Step-by-step explanation:

{m}, {a} , {t} ,{h} ,{m,a}, {m,t} ,{m,h} ,{a,t} ,{a,h} ,{t,h} ,{m,a,t} ,{m,a,h} ,{m,t,h} ,{a,t,h} ,{ m,a,t,h} , {} are the subsets of the given question.

If you found my answer useful then please mark me brainliest.

f(x) = -3x^2
Find f(-2)

Answers

9514 1404 393

Answer:

  f(-2) = -12

Step-by-step explanation:

Put -2 where x is and do the arithmetic.

  [tex]f(x)=-3x^2\\\\f(-2)=-3(-2)^2=-3\cdot4=\boxed{-12}[/tex]

i need help with both please this is due in 10 minutes

Answers

Answer: the first one is a function. the second one is not.

Help me ASAP pls! Convert the measurement. Round the nearest hundredth.

Answers

Answer: 252

Step-by-step explanation:

i believe the answer is 6.4

I need help asapp pls

Answers

B b b b b b b b b b b

On a trip , Joel drove 24 miles more than Rita drove . Together they drove 340 miles . How many miles did Joel drive

Answers

Answer:

U didn't say how many miles Rita drove.

Find the gcf of X^2-5x

Answers

Answer: This answer is 1

Step-by-step explanation: Plzz mark brainliest - Lily ^_^

The octal numeral system is a base 8 positional system that uses the symbols 0,1,2,3,4,5,6,7. Write each base 8 number as a base 10 number. 12 and 117

Answers

Step-by-step explanation:

(12) in base 8

= (1 * 8¹ + 2 * 8⁰) in base 10

= (8 + 2) in base 10

= 10 in base 10.

(117) in base 8

= (1 * 8² + 1 * 8¹ + 7 * 8⁰) in base 10

= (64 + 8 + 7) in base 10

= 79 in base 10.

Using octal numeral system, 12₈ number as 10₁₀ and (117)₈ number as (79)₁₀.

What is octal numeral system?

Octal numeral system has "a base of 8 and uses the number from 0 to 7".

According to the question,

a) (12)₈

          = (1 * 8¹ + 2 * 8⁰)₁₀

          = (8 + 2)₁₀

          = 10₁₀.

b) (117)₈

        = (1 * 8² + 1 * 8¹ + 7 * 8⁰)₁₀

        = (64 + 8 + 7)₁₀

        = (79)₁₀

Hence, using octal numeral system, 12₈ number as 10₁₀ and (117)₈ number as (79)₁₀.

Learn more about octal numeral system here

https://brainly.com/question/10944785

#SPJ2

12 ÷ 4 x ___ = 12

im so confused on this question can you guys help

Answers

Answer:

Step-by-step explanation:

12/4 = 3

3 x 4 = 12

4 is the answer

help Solving Exponential Functions

Answers

Step-by-step explanation:

4) p(x)=256

p(x)=2 ^ x+2

256=2 ^ x+2

2⁸= 2 ^ x+2

8=x+2

x=8-2=6

5)243=3 ^ x+3

3×3×3×3×3 = 3 ^ x+3

3⁵= 3^ x+3

5 = x+3

x=5-3=2

Answer:

[tex]p(x) = 256 \\ p(x) = {2}^{(x + 2)} \\ {2}^{(x + 2)} = 256 \\ {2}^{(x + 2)} = {2}^{8} \\( x + 2) = 8 \\ x =( 8 - 2) \\ \boxed{x = 6}[/tex]

x=6 is the right answer.

[tex]243 = {3}^{(x + 3)} \\ {3}^{(x + 3)} = {3}^{5} \\ (x + 3) = 5 \\ x = (5 - 3) \\ \boxed{ x = 2}[/tex]

x=2 is the right answer.

1/6 x 3/4

Pls ASAP

Brainpower to correct-est and fastest answer.

If you lie, I'll know

Answers

You multiply the The numerator and the denominator and then simplify your answer

Please help. Will go be brainliest

Answers

Answer:

a

Step-by-step explanation:

7/9 * 10/9 * 0.62 =

(7 * 10 * 62) / (9 * 9 * 100)

Multiply

4340 / 8100

Simplify by dividing by 20.

217/405 (about 0.535)

This is less than 2/3 (about 0.66), so it has to be "a" because all the other options are greater than 2/3

 this one is really hard

Answers

Answer:

142

Step-by-step explanation:

opposite angle theorem

Answer:

D. 142

Step-by-step explanation:

They are vertical angles which are always equal

A recipe for banana oat muffins calls for 3/4 cups of oats. You need to triple the recipe to make enough for your whole family. How much oats do you need?

Answers

Answer: 2 and 1/4 cups of oats (9/4 cups of oats)

Step-by-step explanation:

We know that, for the recipe, we need 3/4 cups of oats.

Now, you want to triple the recipe (then you need to use 3 times more ingredients).

This means that, if for the recipe you needed 3/4 cups of oats, when we triple that we have:

3*(3/4 cups) = 9/4 cups

This means that you need to use 9/4 cups of oats.

And we could also write this as:

9/4 cups = 8/4 cups + 1/4 cups = 2 + 1/4 cups of oats.

HELP FAST I'LL MARK YOU BRAINLIEST What is an equation of the line that passes through the point (−2, 3) and is perpendicular to the line whose equation is y = 3/2( x ) − 4?

Answers

Answer: y = -2/3x + 5/3

Step-by-step explanation:

The slope of a perpendicular line is opposite reciprocal --> -2/3Using point given (-2, 3), find b.3 = -2(-2/3) + b3 = 4/3 +b5/3 = b

Nelson used 35% of his savings account for his class trip in May. If he used $140 from his savings account while on his class trip, how much money was in his savings account before the trip?

Answers

Answer:

$400

Step-by-step explanation:

140 ÷ 35% = 400

Some number was divided into 42. This quotient was then multiplied by 8,after which the resulting product was added to 10. Given this sum totalled to 34,find the initial number.

Answers

Answer:

126

Step-by-step explanation:

In order to find the initial number, we need to create the expression that is being mentioned and solve for the initial value by applying the opposite expressions to isolate the variable.

(((x / 42) * 8) + 10) = 34   ... subtract 10 from both sides

((x / 42) * 8) = 24 ... divide both sides by 8

(x / 42) = 3  ... multiply both sides by 42

x = 126

Finally, we can see that the initial value was 126

Y= 4x + 2 put this on a graph please

Answers

....................................................

Rewrite in simplest terms: 4(-6t – 3) - 10t

Answers

Step-by-step explanation:

4(-6t-3)-10t

-24t-12-10t

-12-24t-10t

-12-34t

(x5 + 5x4 – x3 – 22x2 + x + 6) =
(x2 + 3x - 2)

Answers

Answer:

x = 4/13

Step-by-step explanation:

I hope this helps!

if angle 4 =2x+7 and. angle 8 =3x-13 find x for both equations ​

Answers

Answer:

2x +3x =7-13=4+8

Step-by-step explanation:

5x= -6= 12

Other Questions
In March 1999 the Mars Global Surveyor (GS) entered its final orbit about Mars, sending data back to Earth. Assume a circular orbit with a period of 7.08 103 s and orbital speed of 3.40 103 m/s . The mass of the GS is 930 kg and the radius of Mars is 3.43 106 m. Calculate the mass of Mars. A car traveled a distance of 30 km in 20 seconds (1/3 hour). What was the speed of the car? HELP The growing need for soldiers led some states to ignore the ban on African-American soldiersand historians believe that as many as 5,000 African-Americans joined the Patriots. By the war'send, every state except enlisted African-Americans to fight and help America win itsfreedom.(3 Points)GeorgiaSouth CarolinaConnecticutMassachusetts Which of the following statements is true? a) only males can get an X-linked. disorder. b) only females can get an X-linked disorder. c) only males can get a Y-linked disorder. find f(-10) f(x)=7x-5 Help me find answer to this What is the difference between digital instruments and decimal scaled instruments to measure Camille buys $50 worth of books at Target. She has a coupon for 20% off her entire purchase. What is the total cost of the books after the coupon is applied? Which image illustrates the bouncing of a light wave off of a surface?ABDA. AB. BC. C 3x 2xhelp please Accordingtocelltheory,whicharemadeofcells? a. Kitten, mushroom, bacteria b. Rock, kitten, catus c. Mushroom, rock, bacteria d. Bacteria, kitten, catus How many Native Americans were involved in the Trail of Tears?a.18,000b.1500c.36,000d.2400Please select the best answer from the choices providedA. AB. BC. CD. D Determine the lateral and total surface area of the pyramid. what is the voluntary trade? Which of the following is MOST important to creating specialized societies?A. Political LeadershipB. SurplusC. DemandD. Military TechnologyE. Communication True or false: a triad is a chord with 3 notes in it Our Suns mass is 1.0 and our Earths mass is 2.0. The distance is standard as given on the simulation. Describe the path of the Earth. This is a true story and never give up on your hopes and dreams and do you believe in God and Jesus I do I believe in God and Jesus and always will because no one can take that away from me I pray for everyone because i care and i pray for the ones that are sad and need someone the most and i pray for the angles to look after us and i pray for someone i really really care about and i really miss her shes an old lady that cares for me and cry's every time so i pray for her and shes like a mom to me she knew me ever since i was born and she will always sing me lullabies and she will always sing me my little sunshine and it makes me sad every night i think about her i got taken away from my family when i was 5 and i was turning 6 and then like when i was like 8 or 9 i told my mean foster mom about her and then they talked to the CPS and i got to go with her and then i went back to my mean foster mom and then in 2016 November 16 after my birthday i got adopted to a family that cares for me and loves me and i thought i wasn't going to find a family but i didn't give up my hopes and so i did find a family and now im 14 and im happy now and i will never stop believing and i will still care and pray for others but yea God bless you Find the value of X, Y, Z please help i will mark brainliest