Michael bought 7 pizzas from Pizza by Alfredo and 9 pizzas from Alfredo's Pizza Cafe.
Step-by-step explanation:
Cost of Pizza at Pizza by Alfredo = $3
Cost of pizza at Alfredo's pizza cafe = $5
Total amount spent = $66
Let,
Pizzas bought from Pizza by Alfredo = x
Pizzas bought from Alfredo's Pizza Cafe = y
According to given statement;
3x+5y=66 Eqn 1
5y = 3x+24 Eqn 2
Putting value of 5y from Eqn 2 in Eqn 1;
Dividing both sides by 6
Putting x=7 in Eqn 2
Dividing both sides by 5
Michael bought 7 pizzas from Pizza by Alfredo and 9 pizzas from Alfredo's Pizza Cafe.
Keywords: linear equation, substitution method
Learn more about substitution method at:
#LearnwithBrainly
28/36
Multiply by 4 hope that helped
Answer:
<em>Standard line equation</em><em>:</em><em> </em>
y=ax+b
The point (5,1) is on the line. so :
1=a(5)+b → 1=5a+b
The point (1,-5) is also on the line. Then :
-5=a(1)+b → -5=a+b
Subtract the two equations in terms of a and b. we have:
6=4a → a=3/2 , b=-6.5
<em>y=1.5x-6.5</em>
Answer:
Step-by-step explanation:Find Any Equation Parallel to the Line 5x+6y=7
5x+6y=75x+6y=7
The slope-intercept form is y=mx+by=mx+b, where mm is the slope and bb is the y-intercept.
y=mx+by=mx+b
Subtract 5x5x from both sides of the equation.
6y=7−5x6y=7-5x
Divide each term by 66 and simplify
y=76−5x6y=76-5x6
Reorder 7676 and −5x6-5x6.
y=−5x6+76y=-5x6+76
Rewrite in slope-intercept form.
y=−56x+76y=-56x+76
Using the slope-intercept form, the slope is −56-56.
m=−56m=-56
To find an equation that is parallel to
5x+6y=75x+6y=7, the slopes must be equal. Using the slope of the equation, find the
parallel line using the point-slope formula.
(0,0)(0,0)
m=−56m=-56
Using the point-slope form y−y1=m(x−x1)y-y1=m(x-x1), plug in m=−56m=-56, x1=0x1=0, and y1=0y1=0.
y−(0)=(−56)(x−(0))
y=−5x6y=-5x6
Reorder terms.
y=−(56x)y=-(56x)
Remove parentheses.
y=−56x
Answer:
60
Step-by-step explanation:
Look at the left end of the box plot and it is 60.
