A)
is false. There is no solution.
B)
is false. There is no solution.
C)
is
true. It has infinite solutions.
D)
is
true. It has infinite solutions.
E)
is false. There is no solution.
Because for example 349+567 is something you need to regroup.You start by the ones.9+7=16. You don't always need to regroup though
The answer would be 640. To find the number of how many copies are produced in 1 minute you have to write 80 divided by 5 which equals 16. Now you multiply 16 and the 40 minutes which gives you 640 copies.
My guess is -1 because when a x value don’t got a number replace it with a 1
Ruby worked X + 8
Isaac worked X
Svetlana worked 3(X+8)
Let's combine all of that by putting it in an equation
X+8+x+3(x+8)=150
Do what's in parentheses first
x+8+x+3x+24=150
Now we add likes
X+x+3x+8+24=150
5x+32=150
We want x on one side of the equation & numbers on the other side
5x+32-32=150-32
5x=118
Solving for X
5x/5=118/5
X=23.6
Isaac worked 23.6
Ruby worked 8 more hours than Isaac so we add 8 to 23.6= 31.6
Svetlana worked 3 times Ruby so 3x31.6= 94.8
