Answer:
see explanation
Step-by-step explanation:
1
x - 4 = 20 ( multiply through by 3 to clear the fraction )
2x - 12 = 60 ( add 12 to both sides )
2x = 72 ( divide both sides by 2 )
x = 36
2
4 = 
( multiply both sides by 2 to clear the fraction )
8 = - 1 + x ( add 1 to both sides )
9 = x
3
12(x + 9) = - 108 ( divide both sides by 12 )
x + 9 = - 9 ( subtract 9 from both sides )
x = - 18
4
5x + 14 = - 7 ( subtract 14 from both sides )
5x = - 21 ( divide both sides by 5 )
x = - 
= - 4.2
See the pic for the answer. You just multiply each term on the left by each term on the top. The coefficient is just the number in front of an unknown.
Answer: 7:13
Step-by-step explanation:
There are 7 cheese pizzas sold for every 13 pepperoni pizzas sold
Answer:
x=23.2
Step-by-step explanation:
because 3 is the opposite and 7 is the adjacent, we can use tangent (opposite over adgacent) so 3/7 = tan(x) then you take the inverse tangent of both sides to get inversetangent(3/7)=x and then you plug that in the calculator and get that x is 23.2
Answer:
y = -2x + 3
Step-by-step explanation:
Hope this helps!
