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3 years ago

What is the value of x? Enter your answer in the box.

Mathematics

1 answer:

velikii [3]3 years ago

6 0

Answer:

x = 2.75

Step-by-step explanation:

3^2 +4^2 =c^2

9+16=25

5^2 =25

5-2.25= 2.75

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Here are two steps from the derivation of the quadratic formula

Maru [420]

Answer:

Step-by-step explanation:

Completing the square means

adding ( half the coefficient of the x- term )² to both sides, that is

( $\frac{b}{2a}$ )² is added to both sides

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2 years ago

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Which is bigger 40% of 200 or 1/3 of 150

Gnesinka [82]

First find out what 40% of 200 is
200 times .4 is 80

then find out what 1/3 of 150 is
divide 150 by three, which is 50
if it was 2/3 instead of 1/3, you would multiply 50 by 2

40% of 200 is greater

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3 years ago

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2 years ago

The patriot diner sells 2 cheeseburgers and one soda for $11.00 and 3 hamburgersand 2 sodas for $18.00. What is the cost of a ch

kvasek [131]

Answer: the cost of a cheeseburger is $4

Step-by-step explanation:

Let x represent the cost of one cheeseburgers.

Let y represent the cost of one Soda.

The patriot diner sells 2 cheeseburgers and one soda for $11.00. It means that

2x + y = 11 - - - - - - - - - - - 1

She also sells 3 cheeseburgers and 2 sodas for $18.00. It means that

3x + 2y = 18 - - - - - - - - - - -2

Multiplying equation 1 by 3 and equation 2 by 2, it becomes

6x + 3y = 33

6x + 4y = 36

Subtracting, it becomes.

- y = - 3

y = 3

Substituting y = 3 into equation 1, it becomes

2x + 3 = 11

2x = 11 - 3 = 8

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3 years ago