Answer:
1. Y
2. N
3. N
4. N
Step-by-step explanation:
Let's use the second equation, since it seems to be easier to use.
To check if an ordered pair is a solution, plug it in to the equation.
1. --> Y
2. --> N
3. --> N
4. --> N
Edit : The 4th equation doesn't work for the first equation, whereas the first one still does.
Answer:
(-2,-6)
Step-by-step explanation:
-9x +2y = 6
5x - 3y = 8
1) Make one of the coefficients the same - y.
-9x +2y = 6 * 3
5x - 3y = 8 * 3
-27x +6y = 18
10x - 6y = 16
2) Add the new equations.
(-27x +6y = 18) + (10x - 6y = 16)
(-27x +6y) + (10x - 6y) = 18 + 16
-17x = 34
3) Divide to find the value of x
-17x = 34
x = 34/-17
x = -2
4) Substitute x into either equation to find the value of y.
-9(-2) +2y = 6
18 +2y = 6
2y = -12
y = -12/2
y = -6
5(-2) - 3y = 8
-10 - 3y = 8
-3y = 18
y = 18/-3
y = -6
Your answer is (-2,-6).
Answer:
13,250,000 feet or 13.25 million feet
Step-by-step explanation:
Each person in the line has a shoulder width of 1.325 feet.
For each person, there is a width of 1.325 ft. There are 10 million people.
Since:
10 million = 10,000,000
The total length must be:
Answer: 13,250,000 feet or 13.25 million feet
By simply multiplying the average shoulder width of the people (1.325 feet) by the total number of people in the line (10 million), the total length of the line would be 13,250,000 feet.
This problem can be solved by using simple multiplication. Given that the average shoulder width of the people in the line is 1.325 feet, we simply need to multiply this by the total number of people in the line, which is 10 million in this case.
So, 1.325 feet * 10,000,000 = 13,250,000 feet.
Therefore, if there were 10 million people in line, and the average shoulder width of each person is 1.325 feet, the total length of the line would be 13,250,000 feet.
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quarts of lemon juice, how many cups of sugar would be
required for 9 quarts of lemon juice?
Answer:
3
Step-by-step explanation:
6 cups require 2 cups
9 cups require-------x
Cross multiplication
9x2 = 6x
18 = 6x
x= 3
Another way to think about:
6 + half of 6 = 9
Then
2+ and half of 2 = 3
6 is 3 times more than 2
9 is 3 times bigger than 3
Answer:
x = 120
Step-by-step explanation:
An equilateral triangle has 3 equal angles
The sum of the angles is 180
180/3 = 60
x + 60 = 180 since they form a straight line
x = 180-60
x = 120
Answer:
X...................
The number of hits by each player will be 1476 and 1197.
The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.
Together teammates Pedro and Ricky got 2673 base hits last season. Pedro had 279 more hits than Ricky.
Let x be Pedro hits and y be Ricky hits. Then the equations will be
x + y = 2673 ...1
x = y + 279 ...2
From equations 1 and 2, then we have
y + 279 + y = 2673
2y = 2394
y = 1197
Then the value of x will be
x = 1197 + 279
x = 1476
The number of hits by each player will be 1476 and 1197.
More about the solution of the equation link is given below.
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B. 10x – 15
C. 10x - 8
D. 7x-8