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Damm [24]
3 years ago
15

Solve the system using elimination. 4x + 5y = 2 2x + 3y = 0

Mathematics
2 answers:
mina [271]3 years ago
8 0

Answer:

x = 3

y = -2

Step-by-step explanation:

4x + 5y = 2........i

2x + 3y = 0........ii

Let's start by eliminating x, so we multiply i by 2 and ii by 4

2|4x + 5y = 2

4|2x + 3y = 0

So that we have

8x + 10y = 4..........iii

8x + 12y = 0..........iv

Subtracting iv from III, we have

-2y = 4

y = 4/-2

y = -2

Going ahead and substituting this value of y in eqn i, we have

4x + 5(-2) = 2

4x - 10 = 2

4x = 2 + 10

4x = 12

x = 12/4

x = 3

Illusion [34]3 years ago
7 0

Answer:

X= 3

Y= -2

Has to be negative to be able to equal zero.

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The school that DeShawn goes to is selling tickets to the annual dance competition. On the first day of ticket sales, the school
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Answer:

Both child tickets and senior tickets cost $14.

Step-by-step explanation:

Since the school that DeShawn goes to is selling tickets to the annual dance competition, and on the first day of ticket sales, the school sold 10 senior citizen tickets and 8 child tickets for a total of $ 252, while the school took in $ 280 on the second day by selling 10 senior citizen tickets and 10 child tickets, to determine what is the price of each of one senior citizen ticket and one child ticket, the following calculation must be performed:

10 senior tickets + 8 child tickets = 252

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3 0
3 years ago
The expression square root 5x is equivalent to the expression x square root 5
dimulka [17.4K]
\/(5x) = x\/5
[\/(5x]² = [x\/5]²
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8 0
4 years ago
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Maslowich

Answer:

5xy^2(y + 3x^2 - 6x).

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3 0
3 years ago
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