A boat goes 3/4 hours with a speed of 8mph and 1/3 hours with a speed of 12mph. What distance did the boat cover in all this time?

Answers

Answer 1

Answer:

10 miles

Step-by-step explanation:

Distance d = v t

v - speed/velocity

t - time

d = [tex]\frac{3}{4}[/tex] (8) + [tex]\frac{1}{3}[/tex] (12) = 6 + 4 = 10 miles


Related Questions

4x – 2y = 2
x = y + 4

Answers

Answer:

y = -7 and x = -3

Step-by-step explanation:

Substitute x for y + 4 in the first equation and solve for y

4(y+4) - 2y = 2

4y + 16 - 2y = 2

16 + 2y = 2

2y = -14

y = -7

Then in order to find x, substitute y for -7 in the second equation

x = -7 + 4

x = -3

Answer:

x= -3, y= -7

Step-by-step explanation:

substitute x=y+4 in the first equation

4 (y+4) -2y =2 distribute

4y+16-2y=2 subtract both sides by 16

4y-2y=2-16 combine like terms

2y= -14 divide both sides by 2

y=-7

x=y+4 substitute y=-7

x= -7+4

x= -3

imagineaza ti o intamplare fantastica din timpul unei calatorii si redacteaza o naratiune de 100-150 de cuvinte in care sa prezinti. In compozitia ta.este necesar:-sa relatezi intamplarea,respectand succesiunea logica a evenimentelor; -sa prezici repele spati-temporale; -sa ai un continut adecvat cerintei; - sa respectti precizarea privind numarul de cuvinte

Answers

the answer is 50 maybe

Can somebody help me with these? Will mark brainliest!

Answers

Answer:

5) rotation

6) rotation

What is 3 ÷
2
5
?

The quotient is 7 and
.

A number line going from 0 to 3. Numbers 0, 1, 2, and 3 are marked on the line. Marks divide the spaces between each number into 5 equal parts.

Answers

Answer:

The quotient is 7 1/2.

Answer:

1/2

Step-by-step explanation:

got it right on edge

Find the slope of the line that passes through the points (1, -2) and (9,7)

Answers

Answer:

9/8

Step-by-step explanation:

We can use the slope formula

m = ( y2-y1)/(x2-x1)

   = ( 7 - -2)/( 9 - 1)

   = ( 7+2)/( 9-1)

   = 9/8

find the nth term of the sequence -5,-1,3,7​

Answers

4n - 9

Step-by-step explanation:

use formula nth term = a + (n-1)d where a is the first term and d is common difference

Answer:

                  [tex]\bold{a_n=4n-9}[/tex]

Step-by-step explanation:

-1-(-5) = 4   and   3-(-1) = 4   and  7-3 = 3

so: d=4

[tex]a_n=a_1+d(n-1)\\a_1=-5\\d=4\\\\a_{n}=-5+4(n-1)=-5+4n-4=4n-9[/tex]

(2.3x10^4)x(1.5x10^-2

Answers

here's the solution luv

Answer:

3.45x10^2

Step-by-step explanation:

Thankyou

the given diagram can be used to prove the Pythagorean theorem. which expression represents the total area of the red and blue squares?

Answers

Answer: the answer a2 + b2

area of red square = a2; blue square = b2 -> total area = a2 + b2

Step-by-step explanation:

Solve the inequality:
2x - 7<-5 or 10x + 5 >85

Answers

Answer:

Step-by-step explanation:

hi its me addison ray

A: x = 3
B: y = 3
C: y = x
D: x = 6
help please

Answers

I think it’s C because you would use a rise over run method

WILL GIVE BTAINLY Which is the coldest temperature? Explain how you determined this using the number line.

A -3.5 F
B 5 F
C 1.5 F
D -0.5
E -2 F
the rest of the choices 2.5 and -4

Answers

Answer:

-3.5 it is negative.

If the sides to a triangle are 20, 40, and 80 cem, is it Right triangle?

Answers

Answer: no

because using Pytago theorem, we have:

20² + 40² ≠ 80²

80² + 20² ≠ 40²

80² + 40 ² ≠ 20²

Step-by-step explanation:

Answer:

No, it does not follow the Pythagorean Theorem.

Step-by-step explanation:

A right triangle must follow the equation a^2 + b^2 = c^2 for its sides to be true. 20^2 + 40^2 = 2000.

the square root of 2000 equals about 44.7213595.

Thus, a triangle with sides 20, 40, and 80 is not a right triangle.

2)
2r+8-r=-7 solve the equation

Answers

Answer:

r = -15

Step-by-step explanation:

2r + 8 - r = -7

~Combine like terms

r + 8 = -7

~Subtract 8 to both sides

r = -15

Best of Luck!

Answer:

hii

Step-by-step explanation:

Group Like Terms

2r-r+8=-7

Add smiliar elements

r+8=-7

Subtract 8 form both sides

r+8-8=-7-8

SImplify

r=-15

what is the average rate of change?

f(x)=x^2+3

From x=0 to x=3​

Answers

Answer:

dk

Step-by-step explanation:

d

A box of greeting cards contains 20 birthday cards, 15 get-well cards, and 15 thank-you cards.

Find the percent of each type of card in the box

Answers

Answer:

Birthday Cards= 40%

Get-well cards= 30%

Thank-you cards= 30%

Step-by-step explanation:

Determine the domain and the range for this relationship. Drag the tiles to the correct locations on the image. Not all tiles will be used.
0 ≤ x ≤ 720 ≤ x ≤ 60 ≤ y ≤ 6{0, 12, 24, 36, 48, 60, 72}{0, 1, 2, 3, 4, 5, 6}{0, 6, 12, 18, 24, 30}0 ≤ y ≤ 72

Answers

Answer:

Domain: {0,6,12,18,24,30}

Range: {0,12,24,36,48,60,72}

Step-by-step explanation:

I hope I'm right very sorry if I'm not. If so please give "Brainiest". :)

Thanks!!

The domain of 0 ≤ x ≤ 6 is x ∈ [0, 1, 2, 3, 4, 5, 6], and the range of the 0 ≤ y ≤ 6 is y ∈ [0, 1, 2, 3, 4, 5, 6].

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

0 ≤ y ≤ 72

The range will be y ∈ [0, 72]

0 ≤ x ≤ 72

The domain will be x ∈ [0, 72]

0 ≤ x ≤ 6

The domain will be x ∈ [0, 1, 2, 3, 4, 5, 6]

0 ≤ y ≤ 6

The range will be y ∈ [0, 1, 2, 3, 4, 5, 6]

Thus, the domain of 0 ≤ x ≤ 6 is x ∈ [0, 1, 2, 3, 4, 5, 6], and the range of the 0 ≤ y ≤ 6 is y ∈ [0, 1, 2, 3, 4, 5, 6].

Learn more about the function here:

brainly.com/question/5245372

#SPJ5

PLEASE ANSWER!!!!! ASAP!!! WILL GIVE BRAINlIST!!!!!!!! THANKS!!!

Answers

Answer: 118

Explanation:
SA = (2*7*5)+(2*7*2)+(2*2*5)
= 70+28+20
SA = 118

Xoxo

I will mark brainliest!

Please help I’m giving extra points !!!



2 questions ( look at the photo below and answer that one as well)

1) the weight of an object of the earth varies directly as the same object on the moon . An 400 pound object will weigh 60 pounds on the moon . How much would an 80 pound object weigh on the moon?

1) 20

2)8

3)14

4) 12


Answers

Answer: it 3

Step-by-step explanation:

PLEASE BRAINLIEST AND 50 POINTS PART 1 Clare estimates that her brother is 4 feet tall. When they get measured at the doctor's office, her brother's height is 4 feet, 2 inches.

Which measurement should be considered the actual height?

Answers

Because the doctor actually measures his height. The height of 4 feet 2 inches should be considered the actual height.

What is -5(-10z + -4) +-3

Answers

Answer:

50z + 17

Step-by-step explanation:

-5(-10z + -4) +-3

distribute

= 50z +20 -3

=50z + 17

Answer:

50z + 17

I hope this helps!

I really need help so please be right .Write the radical in simplest radical form and you must show all steps please. √(5/8)

Answers

Answer:

√5/6

Step-by-step explanation:

What is the value of the expression (5)^3​

Answers

Answer:

the answer is 125.

Step-by-step explanation:

hope this helps!

Answer:

x = -125

I got it right

Jennifer walks 9 blocks south and 5 blocks west. Approximately how many blocks is she from home if she were to take a direct path?

Answers

9514 1404 393

Answer:

  10.3

Step-by-step explanation:

Assuming the blocks are square, we can use the Pythagorean theorem to find the diagonal distance.

 d² = 9² +5² = 81 +25 = 106

 d = √106 ≈ 10.3

Jennifer is about 10.3 blocks from home.

N more then then the difference of 7 and 2

Please help me ASAP!!!!

Answers

Answer:

what exactly is your question

Can someone help me answer this pls.

Answers

Scale shows weight = 193

Weight of assistant = 135

Weight of dog = x

x = 193 - 135

x = 58

The dog weighs 58 pounds.

Determine the range of the following graph

Answers

The range is the y-values. Here is the answer and explanation :)

Your teacher is giving a test worth 200 points. There are a total of 32 four-point and
seven-point questions. How many 4 and 7-point questions are on the test?

Answers

a+b=32
4a+7b=200

a = 15
b = 20

There are 15 four pointers and 20 seven pointers. You can plug in the numbers to check.

I believe this is correct. If not i am extremely sorry.
Have a wonderful day :)

Answer: a+b=32

4a+7b=200

a = 15

b = 20

There are 15 four pointers and 20 seven pointers. You can plug in the numbers to check.

it only 5 points but it’s okay.

Step-by-step explanation:

For every 1 litre of water used to make a medicine, 150 ml of sucrose and 600ml of saline solution are used. Express the amount of water, sucrose and saline solution needed as a ratio in its simplest form.

Answers

Answer:

1 litre:150ml:600 ml

Step-by-step explanation:

1 liter water

150 ml sucrose

600 ml saline

Answer:

20:3:12

Step-by-step explanation:

State if the given functions are inverses.
1)
F(x)=1/2x -2
g(x) = 2x + 4

Answers

Answer:

Yes

Step-by-step explanation:

if [tex]f(x)=\frac{1}{2}x-2[/tex] then what is [tex]f^-1(x)[/tex]  (the inverse of f(x)? let's find out[tex]f(x)=\frac{1}{2}x-2\\y=\frac{1}{2}x-2[/tex] make f(x) into yThen make y into x and make x into y so [tex]x=\frac{1}{2}y-2[/tex][tex]x=\frac{1}{2}y-2[/tex] now get the new y on the left and everything else on the right[tex]x=\frac{1}{2}y-2\\x+2=\frac{1}{2}y\\2(x+2)=(2)\frac{1}{2}y\\y=2x+4[/tex] now make y = g(x)[tex]g(x)=2x+4[/tex] So you found the inverse of f(x) and it is the same as g(x), so the functions are inverses of each other

Which Theorem Is Being Used?

Answers

Step-by-step explanation:

by SAS since line BD is a perpendicular bisector

Answer:

Pythagoream theorem is being used

Other Questions
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