All you have to do is substitute the y value from the 1st equation into the second equation and solve...
a) y= 2-x
5x + 4y = 5
Substitute (2-x) into the second equation anywhere there is a y...
5x + 4y = 5
5x + 4(2-x) = 5
Now solve
5x + 8 - 4x = 5
5x - 4x + 8 = 5
x + 8 = 5
x = -3
Now that you have a solution for x, substitute -3 into either of the original equations anywhere there is an x then solve for y...
y = 2 - x
y = 2 - (-3)
y = 2+3 = 5
You solved for x and got -3 and solved for y and got 5, so your solution set is
(-3, 5).
Now check it by substituting both numbers into one of the original equations and you should have a true statement if it is correct...
y = 2 - x
5 = 2 - (-3)
5 = 2+3
5 = 5
True statement... it checks!
note* during the check, if the equation would have worked out to something like 2 = 5, then that is a false statement therefore the solution set would be wrong and you'd have to go back and find the mistake.
Answer:
can you show the answer choices, please?
Step-by-step explanation:
Answer: -2
Step-by-step explanation:
you need to isolate x.
to do that, you first add 2 to each side giving you 3x=-6
to isolate further, you divide both sides by 3 giving you -2
Answer:
301.74 feet
Step-by-step explanation:
Given:
A girl stands on a carousel and rotated around the ride 6 times.
The distance between the girl and the center of the carousel is 8.
It means radius, r = 8 feet
Question asked:
How many feet did the little girl travel ?
Solution:
As here asked that how many feet the little girl traveled during rotation around the ride 6 times, we will find circumference of the circle.
Now, we will multiply this by 6 as she rotated around the ride 6 times.
Thus, the little girl traveled 301.74 feet during this ride.
<em>The</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>1</em><em>1</em><em>x</em><em>/</em><em>2</em><em>1</em>
<em>Please</em><em> </em><em>see</em><em> </em><em>the</em><em> </em><em>attached</em><em> </em><em>picture</em><em> </em><em>for</em><em> </em><em>full</em><em> </em><em>solution</em>
<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em>
<em>Good</em><em> </em><em>luck</em><em> </em><em>on</em><em> </em><em>your</em><em> </em><em>assignment</em>