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3 years ago

Combine the like terms -5.4v plus 0.3v

Mathematics

1 answer:

VladimirAG [237]3 years ago

6 0

-5.4v+0.3v= -5.1v

Because both numbers have a common variable of 'v,' they can be combined.

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An American car company has designed a new high fuel efficiency vehicle that is rated at 55 miles per gallon. The company plans

Tju [1.3M]

The fuel usage would be approx. 23 km. per liter. The exact number would be 23.3829 km. per liter.

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3 years ago

Find the point of intersection (if any) of the following pairs of lines: a) x – 2y +1=0 2x + 3y – 7 = 0 b) x-2y+11=0 -x+2y-13 =

pychu [463]

Answer:

a) (11/7, 9/7)

b) There's no point of intersection

Step-by-step explanation:

a) x - 2y + 1 = 0

2x + 3y - 7 = 0

To find the point of intersection, we need to solve the system of equations and the result will be the point of intersection (x,y)

$x-2y+1=0\\x= 2y-1$

Now we substitute x in the second equation:

$2x+3y-7=0\\2(2y-1)+3y-7=0\\4y-2+3y-7=0\\7y-9=0\\y=9/7$

Now we substitute y in our first equation.

$x-2y+1=0\\x-2(9/7)+1=0\\x-18/7+1=0\\x=18/7-1\\x=11/7$ .

The point of intersection is (11/7, 9/7)

b) x -2y +11 =0

-x + 2y - 13 =0

We are going to follow the same procedure:

$x-2y+11=0\\x=2y-11$

$-(2y-11)+2y-13=0\\-2y+11+2y-13=0\\0y=2\\0=2$

Since this system of equations doesn't have a solution, the system has no point of intersection.

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3 years ago

Rachel can make 3 bracelets in an hour. Oliver can make only 2 bracelets in an hour, but he already has completed 5 bracelets. E

Sidana [21]

For the answer to the question above, Since Rachel makes 3 bracelets an hour, her linear equation should be y=3h. 3 represents the rate of change and h represents the number of hours as a variable.
Oliver's linear equation is y=2h+5 because 2 is the rate of change and 5 is the b value or the y-intercept in a linear equation y=mx+b. To find when both have the same number of bracelets, we find the point of intersection...
2h+5=3h
5=3h-2h
5=h
Therefore in 5 hours, both will have the same amount of bracelets.

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3 years ago

3uv<br> ——- help with answer?<br> 4v

wariber [46]

Answer:

1674831727833771724X

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3 years ago

There is a storm heading for Las Vegas. There will be 24inches of rainfall over the course of 2 weeks. Given this data, how much

Gnom [1K]

60 inches because 1 week can equal 12 inches because 24 divided by 2 is 12

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3 years ago

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