Answer:6
Step-by-step explanation:
I feel like we are missing some of the equation, but here goes with what you gave
(x+y)
(4+2)
(6)
You should spend at least 20 minutes on both machines so that way you can burn 150 calories on each machine to get you 300
Answer:
D. 2x + y = -4
Step-by-step explanation:
Standard form for the equation of a line is Ax + By =C where A is a positive integer and B and C are integers
y + 1 = -2x - 3
Add 2x to each side
2x+y + 1 = -2x+2x - 3
2x+y +1 = -3
Subtract 1 from each side
2x+y +1-1 = -3-1
2x+y = -4
Answer:
DEF = 14.5
DEG = 8.5
Step-by-step explanation:
(7x+4) + (5x+1) = 23
12x+5 = 23
x= 1.5
DEF = 14.5
DEG = 8.5
There are 55 girls in the eighth grade
<h3>Representation</h3>
Represent the boys with b, and the girls with g.
<h3>System of equations</h3>
So, the equations are:
Substitute 10 + b for g in the first equation
Expand the equation
Add b to both sides of the equation
Divide both sides by 2
Substitute 45 for b in
Hence, there are 55 girls in the eighth grade
Read more about system of equations at:
brainly.com/question/14323743