1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Cerrena [4.2K]
4 years ago
6

How do I solve this I'm having a problem.

Mathematics
2 answers:
Llana [10]4 years ago
4 0
How do you solve what
lisov135 [29]4 years ago
4 0

A object goes \frac{3}{4} miles in 6 minutes. 6 minutes is \frac{1}{10} of an hour (1 hour = 60 minutes)


\frac{3}{4} +\frac{3}{4} =\frac{6}{4}=1\frac{2}{4}=1\frac{1}{2}

1\frac{1}{2} is twice \frac{3}{4}, or it is \frac{3}{4} doubled, so you also double the time.

6 · 2 = 12 minutes    or    6 + 6 = 12

\frac{12}{1 hour} =\frac{12}{60} =\frac{1}{5}

The object travels 1\frac{1}{2} miles in \frac{1}{5} hours


\frac{3}{4}+\frac{3}{4}+\frac{3}{4} =\frac{9}{4} =2\frac{1}{4}

2\frac{1}{4} is 3 times \frac{3}{4}, or it is \frac{3}{4} tripled, so you also triple 6 minutes.

6 · 3 = 18        or      6 + 6 + 6 = 18

\frac{18}{1hour}=\frac{18}{60}=\frac{3}{10}

The object travels 2\frac{1}{4} miles in \frac{3}{10} hours

You might be interested in
A car needs fixing and Abe can fix it for $70 per hour with a $130 part, but Gabe can fix it for $80 an hour with a $40 part.How
patriot [66]

Answer:

9 hours

Step-by-step explanation:

Abe's charge  =   Gabe's charge

$130+($70/hr)h = $40+($80/hr)h

Then 130 + 70h = 40 + 80h, or

           90           =   10h, or h = 90/10 = 9

When 9 hours have passed, the amount charged by each person will be temporarily equal.

7 0
3 years ago
What are the solutions to x2 + 8x + 7 =.b?
loris [4]

Answer:

x = 7 and x = -1

Step-by-step explanation:

First, we need to factor this quadratic.

To do this, start by finding all the factors of C.

7 x 1, -7 x -1

Now, we need to pick out the factors that add up to the b number, which is 8. That would be 7 and 1.

Now, we can use the numbers 7 and 1 to create two binomials.

( x + 7 ) ( x + 1 ) = 0

The last thing we need to do is to set those binomials to 0 and solve each of them individually.

x + 7 = 0

x = - 7

Solving the first binomial gives us our first solution, -7.

x + 1 = 0

x = -1

Solving the second one gives us our second solution, -1.

The solutions are -7 and -1.

4 0
4 years ago
2) 2(8r + 5) = 24 + 9r
Anna35 [415]

Answer:

r = 2

Step-by-step explanation:

2(8r + 5) = 24 + 9r

16r + 10 = 24 + 9r

16r - 9r = 24 - 10

7r = 14

r = 2

4 0
3 years ago
Which equation represents a line that is perpendicular to line PQ?
valentinak56 [21]

Answer:

B. y=1/3x+4

Step-by-step explanation:

Hi there!

We are given the line PQ and we want to find the line that is perpendicular to it

Perpendicular lines have slopes that are negative and reciprocal. When they are multiplied together, the result is -1

So first, let's find the slope of the line PQ

The point P is given as (-8, 7) and the point Q is given as (-4, -5)

The formula for the slope calculated from two points is \frac{y_2-y_1}{x_2-x_1} where (x_{1} y_1) and (x_2, y_2) are points

We have the needed information for the slope, but let's label the values of the points to avoid any confusion

x1=-8

y1=7

x2=-4

y2=-5

Now substitute into the formula (m is the slope, and remember: the formula contains SUBTRACTION):

m=\frac{(-5-7)}{(-4--8)}

simplify

m=\frac{-5-7}{-4+8}

add

m=-12/4

divide

m=-3

So the slope of the line PQ is -3

As said above, perpendicular lines have slopes that have a product of -1

So to find the slope of the line perpendicular to PQ, use this formula:

-3m=-1

divide both sides by -3

m=1/3

The only line that has a slope of 1/3 is B (y=1/3x+4), so B is the answer.

Hope this helps!

3 0
3 years ago
my sister wants to watch 6 star wars movies ,if each movie. is 2 hours , how long will it take her to watch all of the movies?
poizon [28]
12 hours, 6 x 2 = 12.
4 0
3 years ago
Read 2 more answers
Other questions:
  • A ball will be drawn from a bag containing 20 balls numbered 1 through 20 . ​If each ball is equally likely to be drawn, what is
    5·2 answers
  • I don’t really understand this question. So it will be awesome if you help me with it.
    12·1 answer
  • What is the value x in the solution to this system equations <br><br> 3x-5y=22<br> Y=-5x+32
    15·1 answer
  • How do solve y=5x-8 y=-6x+3 by elimination
    14·2 answers
  • √x²+2√3 +3 =0<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%5E%7B2%7D%20%2B%202%20%5Csqrt%7B3%7D%20%20%2B%203%7D%20%20%3D%
    11·1 answer
  • Find the value of x, round to nearest tenth
    14·1 answer
  • 59-x=10!!!!!!!??????????HELP
    13·1 answer
  • Luis bought stock at $63.30. The next day, the price increased $12.80. This new price changed by −6 3/4% the following day. What
    12·1 answer
  • Please tell me the answer and how to get it. ​
    15·1 answer
  • A popular art teacher at a school asks a sample of students if they would be interested in taking an art class next year. Of the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!