I think it is 13 is the answer
Answer:
Fran's upstream speed (against the current):
2.9 km/hr - 0.1 km/hr = 2.8 km/hr
Fran's downstream speed (with the current):
2.9 km/hr + 0.1 km/hr = 3.0 km/hr
Using the distance formula for calculating time:
rate x time = distance
time = distance / rate
Fran's upstream time = 9 / 2.8 = 3.21 hrs
Fran's downstream time = 9 / 3.0 = 3.0 hrs
The correct answer would be B.
X=brick y=sticks
x=2y
4x+4y=771
4(2y)+4y=771
8y+4y=771
12y=771
y= 771/12
y = 64.25
x = 64.25*2=128.5
Answer:
128.5+64.25*3=321.25kg
Answer:
B) 58.5
Step-by-step explanation:
Diagonal Values are wy=9 and xz=13
Area = (d1 x d2) / 2
= (9 x 13) / 2
= 58.5
