Hi
60 miles in 1.5 hour mean speed of 60/1.5 = 40
If speed is reduce of 5, then she drive at 35 mph.
so 35*3 = 105 miles in 3 hours.
87.3 + 15.6= 102.9
87.3 + 15.6= 102.9
87.3 + 15.6= 102.9
An example should help :-
Simplify sqrt 20:-
sqrt 20 = sqrt (4 * 5) = sqrt 4 * sqrt5 = 2 sqrt5
cube root of 54 = cube root 27 * cube root 2 = 3 cube root 2
The rule is to factor the number and look for perfect squares or cubes, etc.
Answer:
x = -7/5 y = -6/5
Step-by-step explanation:
System:
y = -2x-4
AND
y= 3x+3
therefore -2x-4 = 3x+3
-2x-3x = 3 + 4
-5x = 7
x = -7/5
y = 3(-7/5) + 3 = -21/5 + 3 = -6/5
Answer:
you could use the formula
Step-by-step explanation:
That is x = -b<u>+</u>√b^2 - 4ac/2a
where ur x is
x= -b+√b^2-4ac/2a or
x= -b-√b^2-4ac/2a
