Answer:
x=3 15/16 hours together
Step-by-step explanation:
the painter paints 1/7 of the house in 1 hour
the assistant paints 1/9 of the house in 1 hour
x=# of hours it takes them together to paint the house
(1/7)x+(1/9)x=1 (job finished)
multiply both sides by the LCM which is 63
63(1/7)x+63(1/9)x=63(1)
9x+7x=63
16x=63
x=63/16
x=3 15/16 hours together
Answer:
ok so do L times W
Step-by-step explanation: then youl get the answer
Answer:
Right
Step-by-step explanation:
One of the angles is 90 degrees.
A) 6a=5b so a=5/6*b a/b=5/6
b) 6a=5b so 6/5*a=b b/a=6/5
c) a/b=5/6 so (a/b)*(2/7)=2a/7b=(2/7)(5/6)=(5/21)
d) 6a=5b so b=6a/5 Thus (a+b)/b=(a+6a/5)/(6a/5)=(11a/5)/(6a/5)=11/6
e) 6a=5b so a=5b/6 Thus (a+b)/(5a)=(5b/6+b)/(5*5b/6)=(11b/6)/(25b/6)=11/25
f) (3a+3b)/(a+b)=3=3/1
Note, I wasn't quite sure what you meant by \frac
Answer:
h = 2
Step-by-step explanation:
Assuming that the line in the middle of the triangle is divided in half. You would need to use the Pythagorean theorem to get the height.
If the bottom is 5m and the hypotenuse is 7m, plug these numbers in to get this equation h^2 + 5^2 = 7^2. 5^2 is 25 and 7^2 is 49. Subtract 25 on both sides to get h^2 = 24. Radicals are there so you would need to think of 4 and 6 to get 2 since there are 2 of to make 2 and that left us with root 6 which is your final answer for the height.