A choir needs new robes for each of its 46 singers. Each robe costs 32$. What will be the total cost for all 46 robes
1 answer:
Answer:
$1472
Step-by-step explanation:
We have given a price of a robe and it is $32. And we have to find the total price of 46 such kind of robes.
The question is a direct ratio problem since the price will increase correspondingly with the price of robes.
The correct scheme will be:
1 robe____________$32
46 robes__________x
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Answer:
Dy/dt = 11.67 ft/s
Step-by-step explanation: See Annex
In Annex, Triangles ACE and BCD are similar then, we can write
( y- x ) / y = 6 / 15
15*y -15*x = 6*y
15*y - 6*y = 15*x
9*y = 15*x
y = (15/9)*x
Differentiating with respect time on both sides of the equation we get
Dy/dt = (15/9) Dx/dt (1)
Where we know Dx/dt = 7 ft/s, and according to (1) Dy/dt does not depend on x (distance between man and the pole, only depend on the speed f the man
Dy/dt = (15/9) * 7
Dy/dt = 11.67 ft/s
