Mathematics Middle School

A few boats were traveling upstream and downstream. A satellite recorded the movements of several boats. A motor boat traveled -3.4 miles for every hour in 0.75 hours. How much progress?
Explain
PLSLSLLSLSLSLSLS HELLLPPP ILL GIVE BRAINLIEST

Answers

Answer 1
Maybe draw a graph and see if that is the answer?
Answer 2
Multiply-3.4 to 0.75

Related Questions

Which fraction is equivalent to2/6

3/7
3/9
3/12
3/8

Answers

Answer:

3/9

Step-by-step explanation:

2/6=1/3

3/9=1/3

3/9
I’m pretty sure that’s it. sorry if I’m wrong.

answer both please. i need help and its apart of my grade

Answers

the first one is 1/10 and the second one is -9/5

Answer: 9/10+(-4/5)= 1/10

             -2/5+(-7/5) =  -1 /4/5 or  -9/5

Find the slope of the line shown on the graph

Answers

Answer:

no slope

Step-by-step explanation:

The line is a vertical line.

A vertical line has no slope.

The slope is undefined because the all x values are the same

64 is 4 times the difference between 10 and a number

Answers

Answer: -6

Step-by-step explanation: 64=4(10-n)

Basically 10-x and then then the answer to that times 4=64

I have no idea how to do this! need help, please

Answers

Distribute your numbers on the out side of your Parentheses to the numbers on the inside
Distribute your numbers (sorry if this isn’t helpful, I’m really struggling with homework and it says it need to answer another question, I’ve been working for over 12 hours, I’m tired)

Which of the following expressions can be written as 12(a + b)?

a.(12 + a) ∙ (12 + b)
b.12a + 12b
c.(12 + a) + (12 + b)
d.12a ∙ 12b

Answers

Answer:C(12+a)+(12+b)

Step-by-step explanation:

Answer: 12a + 12b

Step-by-step explanation: Use the distributive property. The property is that you can take the 12 and multiply it by both letters inside separately.

12(a+b) = (12 * a)+(12 * b) = 12a+12b

It's easier to see a picture of how the distributive property works.

X-number of days Y- cost
6 2
9 3
24 8
3 1
a) Is this a proportional relationship?

b) If this is a proportional relationship, what is the constant? Write N/A if it is not proportional.

c) If this is a proportional relationship, write a direct proportion equation. Write N/A if it isnot proportional.

Answers

yesssssssssssassssssss

a) Yes, This is a proportional relationship.

b) The value of constant is, 1/3.

c) The direct proportion equation is,

⇒ y = 1/3x

Where, y represent the cost and x represent the number of days.

What is Proportional?

Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.

We have to given that;

The relation is,

X-number of days      Y- cost

6                                    2

9                                    3

24                                  8

3                                    1

Let number of days = x

And, Cost = y

So, By definition of proportional, we have;

⇒ y = kx

Where, k is constant of proportionality.

Now, By the given relation, we get;

⇒ 2 = k × 6

⇒ k = 2/6

⇒ k = 1/3

And, y = kx

⇒ 3 = k × 9

⇒ k = 3/9

⇒ k = 1/3

Hence, The given relation is in proportion.

And, The value of constant of proportionality = 1/3

Thus, The direct proportion equation is,

⇒ y = 1/3x

Where, y represent the cost and x represent the number of days.

Learn more about the proportion visit:

https://brainly.com/question/1496357

#SPJ2

What is a simplified form of the expression 4(2a – 1) – 5a?
a+4
3a-4
-9a+4
13a-4

Answers

Answer:

3a-4.

Step-by-step explanation:

4(2a-1) --> 8a-4

8a-4-5a

8a-5a=3a

3a-4

Answer: a≓6.969819675
Explanation: Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

a+3/a+7-2*a-4/a^2+3*a-28-(2-a/4-a)=0

Step by step solution :

STEP
1
:

a
Simplify —
4
Equation at the end of step
1
:

3 4 a
((((((a+—)+7)-2a)-————)+3a)-28)-((2-—)-a) = 0
a (a2) 4
STEP
2
:
Rewriting the whole as an Equivalent Fraction

2.1 Subtracting a fraction from a whole

Rewrite the whole as a fraction using 4 as the denominator :

2 2 • 4
2 = — = —————
1 4
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

2 • 4 - (a) 8 - a
——————————— = —————
4 4
Equation at the end of step
2
:

3 4 (8-a)
((((((a+—)+7)-2a)-————)+3a)-28)-(—————-a) = 0
a (a2) 4
STEP
3
:
Rewriting the whole as an Equivalent Fraction

3.1 Subtracting a whole from a fraction

Rewrite the whole as a fraction using 4 as the denominator :

a a • 4
a = — = —————
1 4
Adding fractions that have a common denominator :

3.2 Adding up the two equivalent fractions

(8-a) - (a • 4) 8 - 5a
——————————————— = ——————
4 4
Equation at the end of step
3
:

3 4 (8-5a)
((((((a+—)+7)-2a)-————)+3a)-28)-—————— = 0
a (a2) 4
STEP
4
:

4
Simplify ——
a2
Equation at the end of step
4
:

3 4 (8-5a)
((((((a+—)+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
5
:

3
Simplify —
a
Equation at the end of step
5
:

3 4 (8-5a)
((((((a+—)+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
6
:
Rewriting the whole as an Equivalent Fraction

6.1 Adding a fraction to a whole

Rewrite the whole as a fraction using a as the denominator :

a a • a
a = — = —————
1 a
Adding fractions that have a common denominator :

6.2 Adding up the two equivalent fractions

a • a + 3 a2 + 3
————————— = ——————
a a
Equation at the end of step
6
:

(a2+3) 4 (8-5a)
(((((——————+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
7
:
Rewriting the whole as an Equivalent Fraction

7.1 Adding a whole to a fraction

Rewrite the whole as a fraction using a as the denominator :

7 7 • a
7 = — = —————
1 a
Polynomial Roots Calculator :

7.2 Find roots (zeroes) of : F(a) = a2 + 3
Polynomial Roots Calculator is a set of methods aimed at finding values of a for which F(a)=0

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers a which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient

In this case, the Leading Coefficient is 1 and the Trailing Constant is 3.

The factor(s) are:

of the Leading Coefficient : 1
of the Trailing Constant : 1 ,3

One Month Yareli made 3 withdrawals for $20 and 1 withdrawal for $80 from her account. How did the withdrawals change the amount in her account?

Answers

Answer:

$140

Step-by-step explanation:

3*20=60

80+60=140

Answer:

The withdrawals would be subtracted away from the account

Step-by-step explanation:

I will use x, as the unknown value for the amount of money left in Yareli's account.

Yareli made a total of 4 withdrawals, all adding up to the sum of $140 withdrawn from the account. So, in the equation, it would kind of look like this:

x - $140.

a rental car agency charges $240 per week plus $0.25 per mile how many miles can you travel in one week for 475$ help

Answers

Answer:

940 miles

Step-by-step explanation:

You first want to Subtract 475 and 240 which equals 235. Then divide that by 0.25 and you get 940 miles.

need help will give brainliest plz!!!!

Answers

I believe it's all of them correct me if I'm wrong anybody else who's answering
I, III, IV : You do not need to buy fertilizers in order to protect the water system

One-third of a number yields twelve. Which equation could be used to find the number?

A 3n = 12
B n = 12
C n = -12
D 3n = -12

Answers

I think it is B
because it makes sense

Find the constant of proportionality and write an equation with this table

Answers

Answer:

the constant is 3

Step-by-step explanation:

2/1 divided by 2/3 = 2/1 times 3/2 when you do that you get 6/2 then simplify and you get 3

The answer should be 3 or the constant

HURRY!!!!!!!

What is the graph of the equation ​?

Choose the correct graph below.

A.

-10

10

-10

10

x

y




x y graph

B.

-10

10

-10

10

x

y




x y graph

C.

-10

10

-10

10

x

y




x y graph

D.

-10

10

-10

10

x

y

Answers

Answer:

B.)

Step-by-step explanation:

Trust me on this one I know it is B 100%

Answer:

ANSWER: B

EXPLAINATION IS :I did this question

Sarah and her 4 friends share some cookies. If each person gets 3 cookies, how many cookies were shared?

Write a mathematical equation that represents this situation.

a. c/5 = 3

b. 5c =3

c. c/4 = 3

d. 4c = 3

Answers

Answer:

Step-by-step explanation:   it is d that is the right

Answer:

A. C/5=3

Step-by-step explanation:

There C number of cookies among 5 people therefore

You choose A (if you are wonder the amount of cookies is 15)

which series of transformations will move the triangle in Quandrant 1 onto the similar triangle in Quandrant 3
A. reflection across th x-axis and translation 6 units up
B. translation 6 units down and reflection across the y-axis
C. rotation of 90 degrees clockwise and reflection across the y-axis
D. translation 6 units down and rotation of 9p degrees counterclockwise

Answers

It would be c I hope that helps
I think it’s C sorry if I’m wrong

−34(x−3)−5=18(x−1)
x =?

Answers

Answer:

x=2.211538462

Step-by-step explanation:

-34x+102-5=18x-18

sub 5 from 102

-34x+97=18x-18

add 18 to both sides

-34x+115=18x

add 34x to both sides

115=52x

divide 52 from both sides

2.211538462=x

k=mkm kjjjjjjjjjjjjjjjjjjjjmkm

Answers

nzdndjjsjcjejxosjchejicjsnf

What is the answer to 2 1/4 / 3/4

Answers

Answer: 3

Step-by-step explanation:

9/4 cause it’s division

Which of these are functions and which are not?
A (-1,0),(3,0),(5,2)
B (3,2),(5,-4),(5,1)
C (0,3),(2,5),(2,6),(3,7)
D (-1,3),(0,5),(1,5),(5,7)

Answers

A&C are both functions. B&D are not. A&C do not have any numbers that are repetitive.

using a ruler how could you calculate the floor area of your classroom

Answers

Answer:

Measure the length of the room and then measure the width of the room. Then we multiply the two numbers to find the area.

(03.01 MC)
Select True or False. (1 point)

The expression 4x − 2(5x − 1) is equivalent to the expression 2 + 6x.

Select one:
True
False

Answers

Answer:

I want to say that it is false but I'm not sure

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[tex]4x - 2(5x - 1) = 4x - 10x + 2 = \\ [/tex]

[tex] - 6x + 2[/tex]

Thus ; False

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Please help with this assignment!! It’s math, also zooming into the photo makes it look much clearer.

Answers

C thank me later.Welcome

I kinda need this quick lol

−2x + 5 −1

b) x −6

d) x < −6

Answers

The answer wouldn’t be eathier of those it would be -2x+4 because 5-1 is 4 and that gives you -2x+4 and you can’t combine like terms
-2x+ 5 -1
-2x -5 -5
x-6 that’s should be the answer

Please answer this quick

Answers

Answer:

D

Step-by-step explanation:

to find volume its length × width × height. So 12×7×15 is 1,260

The value of a stock increased 1 1/4 points Monday morning. On Monday afternoon, the value of the stock decreased 1 2/3 points. On Tuesday morning, the value increased 1 1/2 points. What is the change in the stock's value? for middle school
A. - (1/12)

B. 1/12

C. 1 1/1

D. 2 5/12

Answers

Answer:

11/1

Step-by-step explanation:

The following month, Mr. Bradley goes bowling by himself. He debates on which bowling alley to select based only on what it will cost to bowl at each alley. How many games would he need to bowl to pay an equal amount at each bowling alley?

Answers

Answer:

Around 5 or 6 games

Step-by-step explanation:

Answer:

around 5 to 6 games in total

Step-by-step explanation:

Add.
1.234 + 123.4 =

Answers

1.234 + 123.4 = 124.634

Two customers took out bank loans.
• Carl took out a 3-year loan for $20,000 and paid 5.00% interest compounded annually
• Steven took out a 5-year loan for $20,000 and paid 3.00% interest compounded annually
What is the difference between the amounts of interest Carl and Steve paid for their loans?
A)
$32.98
B)
$40.09
$52.91
D)
$86.94

Answers

Answer:

a

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Simplify the expression.
4x+9y+3(x+y)

Answers

Answer:

7x + 12y

Step-by-step explanation:

4x + 9y + 3(x + y)

~Distribute

4x + 9y + 3x + 3y

~Combine like terms

7x + 12y

Best of Luck!

Answer:

The simplified expression is 7x + 12y.

Step-by-step explanation:

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