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Mice21 [21]
3 years ago
14

Solve the following system using the addition method:

Mathematics
2 answers:
Natasha2012 [34]3 years ago
7 0

<u>Answer:</u>

(x, y) = (1, 1)

<u>Step-by-step explanation:</u>

-27x + 6y = -21 --- (1)

-12x +3y = -9 --- (2)

Multiplying (2) by -2 to get:

24 x - 6 y = 1 8 --- (3)

Adding (1) and (3) to get:

-27x + 6y = -21

24x-6y=18

------------------------------------

-3x=-3

x = 1

Finding y:

-12(1) +3y = -9

3y=-9+12

3y=3

y = 1

Therefore, (x, y) = (1, 1).

jasenka [17]3 years ago
5 0

(X,Y)= (1,1)

Explanation:

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Kite ABCD has an area of 48 ft2. Calculate the length of AC.<br> A. 6 ft<br> B. 12 ft<br> C. 18 ft
Harman [31]

Answer:

B. 12ft

Step-by-step explanation:

Area of kite is 2 times the area of triangle

= 2[(1/2)(4)AC] = 48, ie., AC = 12 ft

3 0
3 years ago
Sarah paid $1,932 in tax on her new car which had a purchase price of $80,500 .
levacccp [35]

Answer:

so when looking at the tax minus the cost

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2.4=x

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A is incorrect

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B is not correct as it equals 2208

C is incorrect as it equals 1800 dollars in tax

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<em>2040</em>

6 0
3 years ago
Find the area of the circle. Leave your answer in terms of π.
seraphim [82]

Answer:

4π

Step-by-step explanation:

We are asked to calculate the area of a circle whose diameter is equal to 4, we know that the area of the circle is given by the following equation:

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where r is the radius of the circle, we know that the radius of the circle is half the diameter, therefore:

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replacing, we are left with:

A = π * (2 ^ 2)

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5 0
2 years ago
Can someone help me with this problem?
kompoz [17]
Answer: 5:6

Explanation:

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8 0
2 years ago
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Sergio039 [100]
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16 = no
4 0
3 years ago
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