Answer:
Marty's pizza is really big
bigger than Luis's
Step-by-step explanation:
Kevin is 7 years, Tonya is 14 years and uncle rob is 54 years
Two or more expressions with an Equal sign is called as Equation.
Tonya is twice Kevin's age
In three years, Tonya will be 17.
t+3=17
t=14
tonya is now 14 years.
As Tonay is 2 times kevin
t=2k
Substitute t value in above equation.
14=2k
divide both sides by 2
7=k
kevin is 7.
And in another three years, Uncle Rob will be three times Tonya’s age.
17+3, rob is 3 times Tonya
20(3)=60 years.
60, that is in 6 years, so 60-6=54
Kevin is 7 years
Tonya is 14 years
unclerob is 54 years
Hence, Kevin is 7 years, Tonya is 14 years and uncle rob is 54 years
To learn more on Equation:
#SPJ3
Answer:
WZX=57
Step-by-step explanation:
90-33 = 57
You don't have to use the equation unless you want to check yourself.
Answer:
B 2x-31 = -2x-31
Step-by-step explanation:
A is exactly the same on the left side as the right so it has infinite solutions
B 2x-31 = -2x-31
Add 2x on each side
2x+2x-31 = -2x+2x-31
4x -31 = 31
Add 31
4x =62
This has one solution
C 2x+31 = 2x-31
Subtract 2x from each side
31 = -31
This is never true so it has no solutions
D 2x-2 = 2x-31
Subtract 2x from each side
-2 = -31
This is never true so it has no solutions
Answer:
B)
Step-by-step explanation:
2x - 31 = -2x - 31
4x = 0
x = 0
x = 0 is the only solution