13.25 represents the fee for renting a bicycle for 1 day;
13.25 × 5 + 6.5 = Total Cost
Since, helmet's fee does not depend upon days;
13.25 represents the fee for renting a bicycle for 1 day;
For 5 days; 13.25 × 5 represents the fee for renting a bicycle for 5 days;
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Answer: b
Step-by-step explanation:
<span>Since the number of nail boxes is 6 less than the number of yards of wood, the right expression to use is x-6. (x being the number of yards of wood)
Now let us calculate the number of nail boxes she bought.
Cost of x yards of wood at $27 per yard = 27x.
Cost of x-6 boxes of nails at $4 per box = 4(x-6) = 4x - 24
Therefore 27x +4x - 24 = 193
31x -24 = 193
31x = 193 + 24
31x = 217
x = 217/31
= 7
So she bought 7 yards of wood and 7-6 boxes of nail. That is, she bought only one box of nail.</span>
Answer:
50 unit^3
Step-by-step explanation:
you didnt give a unit, and i assumed the cubes are equal to one cubic of that unit, so cant really help
Answer:
see explanation
Step-by-step explanation:
(a)
(the side required )² = sum of squares of other 2 sides - ( 2 × product of other 2 sides and cos(angle opposite side required ) )
x² = 12² + 15² - (2 × 12 × 15 × cos71°)
(b)
x² = 144 + 225 - 360cos71°
= 369 - 360cos71° ( take square root of both sides )
x = 
≈ 16 cm ( to the nearest integer )
