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dusya [7]
3 years ago
14

Elimination method 2x -3y=7 3x-2y=13

Mathematics
1 answer:
strojnjashka [21]3 years ago
7 0

Answer:

x = 5 and y = 1 or (5, 1)

Step-by-step explanation:

2x -3y=7

3x-2y=13

Multiply (1st) equation by 3 and (2nd) equation by 2

6x -9y=21

6x-4y=26

----------------subtract

-5y = - 5

y = 1

Substitute y = 1 into 2x -3y=7

2x -3(1)=7

2x - 3 = 7

2x = 10

x = 5

Answer

x = 5 and y = 1 or (5, 1)

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What is the discount percentage
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3 years ago
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Coach Williams bought trophies for his players at the end of the season. Each trophy is packed in a cube-shaped box that has a v
Diano4ka-milaya [45]

Answer:

The volume of the cart will be 24 ft^3

Step-by-step explanation:

The first thing we need to calculate for this question is the number of boxes that fill the entire cart.

A layer of boxes consists of 8 boxes.

The cart holds a maximum of 3 layers of boxes.

So, the total number of boxes held by the cart are:

Total boxes = number of layers * boxes per layer

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Since each box has a volume of one cubic foot, the total volume of the cart will be:

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5 0
3 years ago
Find the distance between the two points (-10,3) and (0,27)​
crimeas [40]

Answer:

26 units

Step-by-step explanation:

\boxed{distance \: between \: 2 \: points =  \sqrt{ {(x1 - x2)}^{2} +  {(y1 - y2)}^{2}  } }

Using the formula above,

distance between (-10, 3) and (0, 27)

=  \sqrt{ {( - 10 - 0)}^{2}  +  {(3 - 27)}^{2} }

=  \sqrt{ {10}^{2}  + ( - 24) {}^{2} }

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5 0
2 years ago
Type the numerical answer ONLY. (no spaces)
Fantom [35]

Answer:

98

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x + 1 + 2x-2+ 3x-5 = 180

6x-6 = 180

6x = 186

x = 186/6

x = 31

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7 0
3 years ago
You can buy 3 sandwiches for 4:$4.95 or 4 sandwiches for $6.72.Which is a better buy?
elixir [45]
If you would like to know which one of the options is better to buy, you can calculate this using the following steps:

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1 sandwich ... $x = ?
______________________
3 * x = 1 * 4.95       /3
x = 4.95 / 3 = $1.65


4 sandwiches ... $6.72
1 sandwich ... $y = ?
______________________
4 * y = 1 * 6.72     /4
y = 6.72 / 4 = $1.68

Result: You should buy sandwiches from the first option ($1.65 < $1.68 per unit).
7 0
3 years ago
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