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LenaWriter [7]
3 years ago
8

I need two equations to use elimination but I don't know what equations to use.

Mathematics
2 answers:
lyudmila [28]3 years ago
7 0
2x+3y=160
-2x+7y=25 I hope that helps!!
zheka24 [161]3 years ago
4 0

Answer:

Step-by-step explanation:

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Find the coordinates for the midpoint of the segment with endpoints give (3,5) and (-2,0)
Leto [7]

Answer:

The coordinates of the mid-point are :

(\frac{1}{2}, \frac{5}{2})

Step-by-step explanation:

We know that, the coordinates of the mid-point (<em>x</em>, <em>y</em>) of a line segment joining the points (<em>x</em>₁, <em>y</em>₁) and (<em>x</em>₂, <em>y</em>₂) is given by

(x, y) = (\frac{x_{1} +x_{2} }{2},\frac{y_{1}+y_{2} }{2} )

Now, we have the given points as (3, 5) and (-2, 0).

By using the above formula, coordinates of the mid-point (<em>x</em>, <em>y</em>) of the line-segment joining the points (3, 5) and (-2, 0) is given by,

x = \frac{3+(-2)}{2} = \frac{3-2}{2} = \frac{1}{2}

y = \frac{5+0}{2} = \frac{5}{2}

∴ coordinates of the mid-point of the line-segment joining the points (3,5) and (-2,0) is (\frac{1}{2}, \frac{5}{2}).

8 0
3 years ago
Find the length of ad in the diagram shown
kvv77 [185]
The answer to this is 7.5.
4 0
3 years ago
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Helppppppppppppp plssssssssssss
beks73 [17]

area is found by multiplying length by width

so

26.4 times 12.25 =  

and the answer is feet squared

8 0
3 years ago
A travel agency books holiday tours to Italy, Greece, and other countries in Europe. A supervisor notes that the probability tha
lutik1710 [3]
P(Greece) =0.28 among tem P(G∩I) = 0.11. We also know tat
P(G ∪ I ) =1 [either Greece or Italy or both= all travelers)
The only data that is missing is te P(Italy)
P(G ∪ I ) = P(G) + P(I) - P(G∩ I)
1 =0.28 + P(I) so P(I) = 0.72
P(G) = 0.28 (including the 0 .11)
P(I) = 0.72 (including the  0.11)
P(G and I) =0.11
3 0
3 years ago
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A family of 3 children and 2 adults visited a health club. The club charges $y an hour for each child and $x an hour for each ad
Svetllana [295]

Solution:

A family of 3 children and 2 adults visited a health club. The club charges $y an hour for each child and $x an hour for each adult.

First we make inequality according to question.

In a family number of children 3

Charge for 1 child = $y per hour

Charge for 3 children = 3y

Charge for 1 Adult = $x per hour

Charge for 2 adults = 2x

If the family does not want to s[end more than $30 an hour at health club.

Where, x and y should be greater than 0.

Now we make the graph of this inequality.

First we take equality of equation and then find x and y table.

2x+3y=30

x        y

 0        10

 6        6

 15      0

4 0
3 years ago
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