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Juli2301 [7.4K]
3 years ago
7

Find the unit rate for this

Mathematics
1 answer:
Snezhnost [94]3 years ago
3 0

Answer:

8$ per hour

Step-by-step explanation:

This is a fraction equal to

68 $ ÷ 8.5 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 8.5

68 $ ÷ 8.5

= ------------

8.5 hours ÷ 8.5

= 8 $

--------

1 hour

= 8 $

-------

hour

= 8 $ per hour

You might be interested in
How long dose it take to travel 5km at an average speed of 8 m/s? Give your answers in minutes and seconds
eduard

Answer:

625 seconds and 10 minutes

Step-by-step explanation:

distancs=S=5km=5000m

average speed=v=8m/s

time taken=t=?

as we know that

average speed=\frac{distance covered}{time taken}

average speed×time taken=distance covered

here we have to find the time taken

time taken=\frac{distance covered}{average speed}

time taken=\frac{5000m}{8m/s}

time taken=625seconds

now we convert seconds into minutes

\frac{625}{60}

10 minutes

4 0
4 years ago
A line y=mx+b is translated using the vector . Write the equation of the translated line. What is the value of the y -intercept?
schepotkina [342]

The found value are-

  • Equation of the translated line: y = mx − am + 2b.
  • The value of the y -intercept: 2b − am.
<h3>What is general form of straight line?</h3>

A straight line's general equation is y = mx + c, in which m is the gradient and y = c is the value at which the line intersects the y-axis. This number c is known as the y-axis intercept.

Now, as per the given question;

The general equation of the line is given as;

y = mx + b

Each point (x,y) of the line is moved to the point (x+a, y+b) by the translation:

(x,y) ---> (x+a, y+b)

We find the original line's x and y intercepts:

Put y=0 in general equation of the line

⇒mx+b = 0

⇒x = −b/m

When, x=0

⇒y = m⋅0 + b

⇒ y = b

A, (0,b) and B( -b/m, 0)

We find the translational coordinates of the points A,B:

A(0,b) ---> A′ (0+a,b+b)

A(0,b) ---> A′ (a,2b)

And,

B( -b/m, 0) ----> B'( -b/m + a, 0 + b)

B( -b/m, 0) ----> B'( -b/m + a, b)

To find the equation of the line's translation, we use the points A and B ′:

m' = (2b - b)/[a  - (-b/m +a)]

m' = b/(b/m)

m'  =m

And,

y−yA' = m' (x−xA')

y−2b=m(x−a)

y=mx−am+2b

The translation of the line's x and y intercepts are:

Put x=0

⇒y = m⋅0−am+2b

⇒y = 2b−am

And, put y=0

⇒0 = mx−am+2b

⇒x = a - (2b/m)

Therefore, the equation of the translate line is found to be  y = mx − am + 2b.

And, the value of the y-intercept is found to be 2b−am.

To know more about the general form of straight line, here

brainly.com/question/4227212

#SPJ4

3 0
1 year ago
The items Kameko ordered for lunch totaled $5.20. The sales-tax rate was 8%.
katrin2010 [14]
5.20 time 8/100 the answer is0.42 and 0.42plus 5.20
4 0
3 years ago
Read 2 more answers
A box making machine makes cardboard boxes at a rate of 40 boxes per minute. How many minutes does it take to make 360 boxes?
KATRIN_1 [288]
40/1=360/X
40x=360
Divide by 40
X=9 minutes
4 0
4 years ago
How do you solve -4 + y = 6 and y= 7x - -6 by substitution?
Natali5045456 [20]

Answer:

by doing the math

Step-by-step explanation:

do (7x)-(-6) then the other problem and find out witch one is more

4 0
2 years ago
Read 2 more answers
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