All categories

2 years ago

Substitution would be the best method for solving which system?

Mathematics

2 answers:

natali 33 [55]2 years ago

8 0

Answer:

Assuming its asking which is the easiest one to use substitution its the last one: y= 2x : x + y = 28

Step-by-step explanation:

Because y and x are already one opposite sides you can substitute y in the 2nd equation with 2x. So you'll get 3x = 28 so x = 9.333333334. Then you plug your answer for x in the original equation to get y = 18.666666667

Pepsi [2]2 years ago

5 0

Answer:

The last one

Step-by-step explanation:

Because it tells you what y is

You might be interested in

Combine the like terms to create an equivalent expression −n+(−3)+3n+5

spin [16.1K]

Answer:

2n+2

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Ben rolls a wheel with a diameter of 1 meter through one complete revolution from point M to point P. About how far did Ben roll

yaroslaw [1]

Answer:

Step-by-step explanation:

i think c but not sure

6 0

3 years ago

Kaeleb made an apple pie in the shape of a triangle. The side lengths of his pie are 9 centimeters. He wants to reduce each side

White raven [17]

Answer:

Step-by-step explanation:

4 0

3 years ago

What is the perimeter of a rectangle with a length of 6 4/5 inches and a width of 2 2/3 inches?

ANTONII [103]

6 4/5 + 6 4/5 + 2 2/3 + 2 2/3 = 18 14/15

3 0

3 years ago

Herman is traveling 125 miles from his house to the beach by car. Herman plans to stop for lunch when the ratio of the distance

aliya0001 [1]

Answer:

250 miles

Step-by-step explanation:

The given distance between the house and the beach is 125 miles.

Let $x$ miles be the distance between the house and the lunch stop.

So, at the time of the lunch stop, he already traveled $x$ miles, the remaining distance is the distance between the lunch stop and the beach.

Let $y$ miles be the remaining distance, so

$y=125-x.$

Give that the ratio of the distance he has traveled, $x$ , to the distance he still has to travel, $y$ , is $2:3$ ,i.e

$x:y=2:3$

$\Rightarrow \frac x y =\frac 2 3$

$\Rightarrow \frac {x}{125-x}=\frac 2 3$

$\Rightarrow 3\times x=2\times(125-x)$

$\Rightarrow 3\times x=2\times125-2\timesx$

$\Rightarrow 3 x=250-2x$

$\Rightarrow 3x-2x=250$

$\Rightarrow x=250$

Hence, the distance traveled by Herman when he stops for lunch is 250 miles.

4 0

3 years ago