<span>An equation with more than one operations can be also called several-step equation, because requires multiple operations to be solved.There is a order which operation you should do first. The equation can be solved in several steps an that's why is it not a one-step equation.</span>
ANSWER
83
EXPLANATION
This method makes use of a system of equations
Let x be the tens-place digit
Let y be the ones-place digit
(therefore, x and y are positive integers between 0 and 9 inclusive as they represent digits)
Then this two digit number is 10x + y
"Multiplying it by itself gives 6889" implies
(10x + y)(10x + y) = 6889
or just
(10x + y)² = 6889
Square root both sides.
Note that √(10x + y)² = 10x + y since x and y are positive and √6889 is 83
10x + y = 83
Now use the other information to make another equation
The sum of its digits is 11 so
x + y = 11
We have a system of equations as x and y must satisfy both equations for the question conditions to be met:
10x + y = 83 ... (I)
x + y = 11 ... (II)
This can be solved using elimination. Multiplying (II) by -1 to aim to get rid of y, we get
10x + y = 83 ... (I)
- x - y = -11 ... (II)
Adding the two equations, we get
(10x - x) + (y - y) = (83 - 11)
which is
9x = 72
Divide both sides by 9 to get
x = 8
This is the tens digit.
Can use x + y = 11 ... (II) to figure out value of y,
x + y = 11
⇒ y = 11 - x
⇒ y = 11 - 8
⇒ y = 3
x = 8 and y = 3
x is the tens-place digit
y is the ones-place digit
The number is 83
Answer:
1/2
Step-by-step explanation:
As you probably know 10 is double the size/amount of 5, but instead of just putting 2 you would put 1/2. That is because it is a scale factor of a scale drawing, which is not the same size and is supposed to be smaller because you can't draw a house on a paper that would fit it literally ;)
Hope this helps!
Answer:
y=-3x-2
Step-by-step explanation:
step 1- find the slope
parallel to means same slope, so look at y+3x=4, its not in the correct slope form so we subtract both sides by 3x to get y=-3x+4, the slope is the coefficient of x which is -3. Slope equals 3
step 2- use the point slope form which is y-y1=m(x-x1)
and substitute in the numbers (only substitute y1,x1, and m)
m is the slope which we found to equal -3
x1 and y1 are the points that they gave us (-2,4) are (x1,y1)
x1=-2
y1=4
step 3- substitute
y-y1=m(x-x1)
y-4=-3(x-(-2))
simplifies to y-4=-3x-6
add 4 to both sides to get y=-3x-2
Answer:
✔ bus stop #2, by 6.5 minutes
Step-by-step explanation: