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Iteru [2.4K]
2 years ago
10

Solve the systems of equations. 2y - Зх -27 5y +3x = 6

Mathematics
1 answer:
Grace [21]2 years ago
6 0

Answer:

y = 33/7 and x = 41/7

Step-by-step explanation:

I'm writing this cuz I gotta get it to 20 characters.

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Use substitution to solve the system of equations.
kakasveta [241]

Answer:

C (let me know if I am wrong!)

Step-by-step explanation:

We need to solve the equation.

If 5x+y = -24, then -24 - 5x = y.

x+ 3(-24-5x) = -2

= -14x-72=-2

= -14x-72+72=-2+72

= -14x=70

= -5

If x = -5, then -5 + 3y = -2.

3y = -2+5

3y = 3

y=1

So the answer is C.

4 0
3 years ago
Based on the data in the two-way table, what is the probability that a person weighs 120 pounds, given that he or she consumes 2
sdas [7]
<span>In the question "Based on the data in the two-way table, what is the probability that a person weighs 120 pounds, given that he or she consumes 2,000 to 2,500 calories per day?" The probability of an event, say A given another event, say B is given by n(A and B) / n(B). Thus the probability that a person weighs 120 pounds, given that he or she consumes 2,000 to 2,500 calories per day is given by number of persons that weigh 120 pounds and consume 2,000 to 2,500 calories per day / number of persons that consume 2,000 to 2,500 calories per day. From the table, the number of persons that weigh 120 pounds and consume 2,000 to 2,500 calories per day is 10 while the number of persons that consume 2,000 to 2,500 calories per day is 110. Therefore, the required probability is 10 / 110 = 1 / 11</span>
3 0
3 years ago
Read 2 more answers
There are two positive numbers. four times the small number plus 3 times the big number is 41. two times the small number plus t
xxTIMURxx [149]
The small number is 2 the large number is 11.
4(2)+11(3)=41
2(2)+11=15
11(10) -2(6) = 98


hope that helps
4 0
2 years ago
The size of a television is the length of the diagonal of its screen in inches. The aspect ratio of the screens of older televis
katrin [286]

Answer:

The Width = 65.44 inches

The Height = 36.81 inches

Step-by-step explanation:

We are told in the question that:

The width and height of an newer 75-inch television whose screen has an aspect ratio of 16:9

Using Pythagoras Theorem we known that:

Width² + Height² = Diagonal²

Since we known that the size of a television is the length of the diagonal of its screen in inches.

Hence, for this new TV

Width² + Height² = 75²

We are given ratio: 16:9 as aspect ratio

Width = 16x

Height = 9x

(16x)² +(9x)² = 75²

= 256x² + 81x² = 75²

337x² = 5625

x² = 5625/337

x² = 16.691394659

x = √16.691394659

x = 4.0855103303

Approximately x = 4.09

For the newer 75 inch tv set

The Height = 9x

= 9 × 4.09

= 36.81 inches

The Width = 16x

= 16 × 4.09

= 65.44 inches.

4 0
2 years ago
ILL GIVE BRAINLEST, tell whether the angles are adjacent or vertical. then find the value of x.
pashok25 [27]

Answer:

The angles are adjacent and x=100

6 0
2 years ago
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