Answer:
0.2
(
65x
−
24
) hope this is correct and helps you
Answer:
i think x=8
Step-by-step explanation:
Answer:
6.49 × 10⁷ years
Step-by-step explanation:
For Dinosaurs
Dinosaurs have been extinct for about 6.5×10 exponent seven years
6.5 × 10⁷ years
For Neanderthals
Neanderthals have been extinct for about 3.0×10 exponent four years
= 3.0 × 10⁴ years
How many longer is calculated by Subtraction
6.5 × 10⁷ years - 3.0 × 10⁴
= 64970000 years
= 6.49 × 10⁷ years
Answer:
5x + 6y = 20_____(1)
8x - 6y = -46_____(2)
Solving simultaneously:
Eqn(1) + Eqn(2)
5x + 8x + 6y + (-6y) = 20 + (-46)
13x = -26
x = -2
substituting this into Eqn (1):
5(-2) + 6y = 20
-10 + 6y = 20
6y = 30
y = 5
hence:
x = -2,y = 5.
