Answer:
x
<
−
50
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
x
<
−
50
Interval Notation:
(
−
∞
,
−
50
)
X=2.85
it simplifies to 5x=14.25, and then 14.25/5=2.85
Answer:
x=3.3333 in decimal, x=10/3 in improper fraction form
Step-by-step explanation:
Given -> 6x-7=13
Add 7 to both sides -> 6x=20
Divide both sides by 6 -> x=20/6
Simplify by a factor of 2 -> x=10/3
Convert to decimal form -> x=3.333333
Answer:
Beth is five years old.
Step-by-step:
Beth + Julio + Gerald + Debra = 38
B + (Beth - 2) + (2 x Beth) + (2 x Gerald) = 38
Since we know that Gerald is twice as old as Beth and Debra is twice as old as Gerald. That makes Debra four times older than Beth.
Beth + (Beth - 2) + (2 x Beth) + (4 x Beth) = 38
B + (B -2) + (2B) + (4B) = 38
Simplfy the like terms.
8B - 2 = 38
Add 2 on both sides.
8B = 38 + 2
8B = 40
Divide both sides by 8 to isolate the variable.
8/8 B = 40/8
B = 5
Hello!
The best thing to do in this case is to make all the fractions have common denominators by having equivalent fractions.
For example, if you have 1/2, 1/3, and 4/6, we make them all get common denominators.
1/2=3/6
1/3=2/6
4/6=4/6
Now we can order them.
1/3, 1/2, 4/6
I hope this helps you!
