Answer:
One solution
Step-by-step explanation:
5x + y = 8
15x + 15y = 14
Lets solve using substitution, first we need to turn "5x + = 8" into "y = mx + b" or slope - intercept form
So we solve for "y" in the equation "5x + y = 8"
5x + y = 8
Step 1: Subtract 5x from both sides.
5x + y − 5x = 8 − 5x
Step 2: 5x subtracted by 5x cancel out and "8 - 5x" are flipped
y = −5x + 8
Now we can solve using substitution:
We substitute "-5x + 8" into the equation "15x + 15y = 14" for y
So it would look like this:
15x + 15(-5x + 8) = 14
Now we just solve for x
15x + (15)(−5x) + (15)(8) = 14(Distribute)
15x − 75x + 120 = 14
(15x − 75x) + (120) = 14(Combine Like Terms)
−60x + 120 = 14
Step 2: Subtract 120 from both sides.
−60x + 120 − 120 = 14 − 120
−60x = −106
Divide both sides by -60

Simplify

Now that we know the value of x, we can solve for y in any of the equations, but let's use the equation "y = −5x + 8"





















So there is only one solution to the equation.
Answer:
a) = 8
Step-by-step explanation:
You add up all the numbers then divide that number by how many numbers you had. 4+5+7+11+13=40 40/5.
Do you want the rest?
<h3>
Answer: It's a linear equation.</h3><h3>It's not a proportional relationship.</h3><h3>Juanita spend $63 on groceries if she spent $30 on transportation.</h3>
Step-by-step explanation: Given equation y=2x+3.
Where x is the amount she spends on transportation, and y is the amount she spends on groceries.
<em>We can see that given equation is in slope-intercept form y=mx+b.</em>
So, it's a linear equation and y=2x+3 is the relationship between x and y linear.
<em>Also, a linear linear equation represents a proportion relationship if y-intercept is 0.</em>
But for the given equation y=2x+3, y-intercept is 3.
Therefore, it's not a proportional relationship.
Now, in order to find how much would Juanita spend on groceries if she spent $30 on transportation, we need to plug x= 30 in given equation.
Therefore,
y = 2(30) +3 = 60+3 = 63.
<h3>So, Juanita spend $63 on groceries if she spent $30 on transportation.</h3>
Answer:
the awnser would be 2
Step-by-step explantion
u have 1 apple and get 1 from a friend and that adds up to 2