(7x-y=7
(x+2y=6 estimate the solution to the system of equations
Answers
Answer:
x=4/3; y=7/3
Step-by-step explanation:
x+2y=6,
x=6-2y.
7(6-2y)-y=7,
42-14y-y=7,
15y=35,
y=7/3.
x+2y=6,
x+2*7/3=6
x=4/3
∴x=4/3, y=7/3.
Final answer:
To estimate the solution to the system of equations (7x-y=7) and (x+2y=6), we can use the method of substitution. The estimated solution is x = 1.46 and y = 2.27.
Explanation:
To estimate the solution to the system of equations (7x-y=7) and (x+2y=6), we can use the method of substitution. We can solve one equation for one variable and substitute it into the other equation. Let's solve the second equation for x: x = 6 - 2y.
Substituting this value of x into the first equation, we get:
7(6 - 2y) - y = 7
42 - 14y - y = 7
41 - 15y = 7
-15y = 7 - 41
-15y = -34
y = -34 / -15
y = 2.27
Now, substitute this value of y back into the second equation to find x:
x + 2(2.27) = 6
x + 4.54 = 6
x = 6 - 4.54
x = 1.46
Therefore, the estimated solution to the system of equations is x = 1.46 and y = 2.27.
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Answers
Answer:
There exist no rational number between the number 0.4 repeat and 4/9.
Step-by-step explanation:
Consider the provided number.
0.4 repeat and 4/9
This can be written as:
and
Convert the number 4/9 into decimal form.
Here, both the numbers are same so there exist no rational number between the number 0.4 repeat and 4/9.
No, there is no rationalnumber between the number 0.4 repeat and 4/9.
Any number that can be represented as the ratio of two integers and where the denominator is not zero is referred to as rational.
The provided numbers are:
0.4 repeat and 4/9
We can write 0.4 repeat as
Let's convert number 4/9 into decimal:
On dividing 4 by 9 we get 0.444444
Here we see that 4 keeps repeating.
So 4/9 can also be written as
Since, both the given values are same, there can not be existed any rational number between them.
Hence, there is no rational number between 0.4 repeat and 4/9.
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Answers
I hope this helps!
Answers
powers.
Explanation:
The base of a power is the number that is multiplied repeatedly; the exponent is the number of times it is multiplied. Together they make a power.
Answers
29. C
30. C
Answers
Answer:
Based on the answers I can see, it'd be all of them.
Step-by-step explanation:
When rounding to the nearest hundred, you round down if the tens are 49 or smaller (e.g. 401 to 400). If the tens are 50 or bigger, you round up (e.g. 351 to 400). I hope that helps you.
Answers
5h/9 I believe is the answer