Triangles with a 90 degree angle. We use the sine, cosine and tangent functions to determine the missing angles and sides.
<span>Faster maid DATA:
time = x hr/job ; rate = 1/x job/jhr
Slower maid DATA:
time = 3x hr/job ; rate = 1/3x job/hr
Together DATA:
time = 3 hr/job ; rate = 1/3 job/hr
Equation:
rate + rate = together rate
1/x + 1/3x = 1/3
Multiply thru by 3x to get:
3 + 1 = x
x = 4 hrs (time for the faster maid to do the job)</span>
Positive! I hope this helps!
Answer:
it is 7x-4
Step-by-step explanation:
Answer:
(2703/64)^3
Step-by-step explanation:
hello :
(5 1/8 x 5 3/8)^3 = (51×53/8×8) ^3 = (2703/64)^3
