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Anettt [7]
3 years ago
11

If I started a test at 4:36 and was done at 5:11 how long did it take me

Mathematics
2 answers:
Molodets [167]3 years ago
7 0

1 hour and 25 minutees

subtract 11 from 36 minutes than theres 25

add tfyilgyhjgyiguk

mr Goodwill [35]3 years ago
4 0

Answer: 75 min

Step-by-step explanation:

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A music store has sold 3/5 of their hip-hop CDs, but 10 were returned.Now the store has 62 Hip-Hop CDs,How many Hip-Hop CDs did
kow [346]

Answer: 130

Step-by-step explanation:

Let x be the original number of hip- hop CDs in the music store.

Given : A music store has sold 3/5 of their hip-hop CDs, but 10 were returned.

i.e. The number of hip- hop CDs in the store  will be :

Original No. of CDs - CDs sold + CDs Returned

x-\dfrac{3}{5}x+10

If  the store has 62 Hip-Hop CDs now , then required euation will be :-

x-\dfrac{3}{5}x+10=62

Subtract 10 from both sides , we get

x-\dfrac{3}{5}x=52

\Rightarrow\ \dfrac{5x-3x}{5}=52

\Rightarrow\ \dfrac{2x}{5}=52

\Rightarrow\ x=52\times\dfrac{5}{2}=130

Hence, the number of CDs they originally have = 130

7 0
3 years ago
PLEASE I'm DESPERATE!. Find a, b, c, and d such that the cubic . f(x) = ax3 + bx2 + cx + d. satisfies the given conditions.. Rel
dimulka [17.4K]
We are given with the equation <span>f(x) = ax3 + bx2 + cx + d

Substituting, (3,11) 
</span><span>11= 27a + 9b + 3c + d
</span><span>@(5, 9) 
</span><span>9 = 125 a + 25 b + 5c + d
@</span><span>(4, 10)
</span><span>10 = 64 a + 16 b + 4c + d

@inflection point, second derivative is equal to zero
</span><span>f'(x) = 3ax2 + 2bx + c 
</span>f''(x) = 6ax + 2b = 0

when x is 4, 24 a + 2b = 0 or 12a + b = 0. 

There are 4 equations, 4 unknowns: answer is 
<span>0.5 x^3 - 6x^2 + 22.5 - 24 = 0</span>
4 0
3 years ago
Read 2 more answers
The distance between the bottom of a boat in the water line is called a draft. A boat in the water rises 14 feet above the water
vodomira [7]

Answer:

84

Step-by-step explanation:

because you multiplication the number

8 0
2 years ago
Read 2 more answers
The difference in the X-coordinates of two points is 3, and the difference in Y-coordinates of the two points is 6. What is the
pickupchik [31]

Answer:  the slope is 2/1 or 2.

Step-by-step explanation:

The slope is the difference in the y coordinates divided by the difference in the x coordinates so you have to divide 6 by 3 since they have already given you the difference.

6/3 = 2

4 0
3 years ago
Nick, Paul and krutika share £80 in a ratio 1:1:2 how much money does each person get
pychu [463]

Answer:

Step-by-step explanation:

x + x + 2x = 80

4x =80

X = 20

Nick = 20

Paul = 20

Krutika = 40

4 0
3 years ago
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