Okay, so we have the number 443,219. And we need to round to the nearest ten thousand.
443,219
The bolded number shows the ten thousands place. Now we need to know whether we round down, or round up. To decide which one to do, we need to look at the number in the thousandths place. The rule is...
If the number is 4 or less, then we round down. If the number is 5 or more then we round up.
In the number 443,219 the 3 is the number in the thousandths place.
Since 3 falls into the category of '4 or less', we know that we need to round down. So 443,219 becomes 440,000
Answer=440,000
B(3, 1)
C(1, –3)
D(–1, –3)
The solution to the given system of equations is (3, –1). The correct answer is option A.
The system of equations is given as:
x - 4y = 7 ....(1)
5x + 9y = 6 ....(2)
Solve the first equation for x:
x = 7 + 4y
Substitute the value of x in the second equation:
5(7 + 4y) + 9y = 6
35 + 20y + 9y = 6
29y = -29
y = -1
Substitute the value of y back into the first equation to find x:
x = 7 + 4(-1)
x = 7 - 4
x = 3
Therefore, the solution to the system of equations is x = 3 and y = -1.
Thus, the correct answer is option A.
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The complete question is as follows:
Solve the below system of equations.
x – 4y = 7
5x + 9y = 6
A. (3, –1)
B. (3, 1)
C. (1, –3)
D. (–1, –3)
12 and 25
B.
24 and 45
C.
9 and 24
D.
18 and 39