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Vikki [24]
2 years ago
8

All movies in a store are being discounted 30%. Let x represent the regular price of a

Mathematics
1 answer:
bagirrra123 [75]2 years ago
4 0
D bc the price is 30 %
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The formula to convert temperature in Celsius to Fahrenheit is F= 9/5C+32. Solve for C<br> C= ?
icang [17]
F = 9/5C + 32

Subtract 32 to both sides:

F - 32 = 9/5C

Divide 9/5 to both sides or multiply by its reciprocal, 5/9:

5/9(F - 32) = C

Simplify:

C = 5/9F - 160/9
6 0
2 years ago
A submarine dives 20 m each minute for 15 minutes. What is the total change in depth after 15 minutes?
bazaltina [42]

Answer:

300 m

Step-by-step explanation:

20 meters per minute. 15 minutes it dives. 20x15 is 300

3 0
3 years ago
Read 2 more answers
- 10 x + 4 = 11.3x i don’t know the answer
lubasha [3.4K]

Answer: x= 0.18779342

Step-by-step explanation:

3 0
3 years ago
Casey puts wrapping paper around a gift box. She wants to tie a ribbon
kkurt [141]
Well 12 inches is a foot so 24inches is 2 feet so there is a hint so 90 divided by 12 and there is part of it
3 0
3 years ago
Ricardo throws a stone off a bridge into a river below. The stone's height (in meters above the water), xxx seconds after Ricard
Dominik [7]
For this case we have the following function:
 <span>w (x) = - 5 (x-8) (x + 4)
 </span><span>Rewriting we have:
 </span><span>w (x) = - 5 (x ^ 2 + 4x - 8x - 32)
 </span><span>w (x) = - 5x ^ 2 - 20x + 40x + 160
 </span><span>w (x) = - 5x ^ 2 + 20x + 160
 </span><span>Then, deriving we have:
 </span><span>w '(x) = - 10x + 20
 </span><span>We equal zero and clear x:
 </span><span>0 = -10x + 20
 </span><span>10x = 20
 </span><span>x = 20/10
 </span><span>x = 2 seconds
 </span><span>Substituting values:
 </span><span>w (2) = - 5 (2-8) (2 + 4)
 </span><span>w (2) = - 5 (-6) (6)
 </span><span>w (2) = 180 meters
 </span>Answer:
 
The maximum height that the stone will reach is:
 
w (2) = 180 meters
7 0
3 years ago
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