Let's use the addition/subtraction method.
Suppose we wish to eliminate variable x.
Mult the first eqn by 5: 10x - 15y = 15
Mult the 2nd eqn by -2: -10x+ 4y = -8
Add these two equations together: -11y = 7, and y = -7/11.
Subst. -7/11 for y in either given equation and find x.
Then your solution is (x,y) (subst. the values we've found for x and y).
Answer:
Step-by-step explanation:
Total surface area of a cone is given by the expression,
SA = πrl + B
Here, r = Radius of the circular base
l = slant height
B = Surface area of the base
Surface area of the circular base = πr²
= π(5)²
= 25π cm²
Slant height 'AC' = 
= 
= 
= 13 cm
Substitute the values in the expression of surface area,
SA = π(5)(13) + 25π
= 65π + 25π
= 90π cm²
Therefore, SA = 90π cm² will be the answer.
Answer
he assaighed 6 problems to each of them
Step-by-step explanation:
he assaighned 2 to each if the total is 30 that means 30 / 5 = 6 so x = 4 and the student had 6 problems
Answer:
could you type that again? I don't understand
Answer:
The speed of the cheetah is 108 kilometer per hour.
Step-by-step explanation: i found this by taking 1 hour or 60 divided by the 5 for minutes. That was 12 then since the cheetah ran 9 km in 5 minutes i multiplied 9 by twelve to get kph.
