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Alenkasestr [34]
2 years ago
10

Please check my work:

Mathematics
1 answer:
11Alexandr11 [23.1K]2 years ago
8 0

Answer:

1) C (5,-11)

2)A and C

3)B

4)A

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Help please!! It would be nice if you could add an explanation, but you don't have to. I just need the answer.
Firlakuza [10]
The answer is B I solved this my self
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2 years ago
The average of 4 numbers is 5. What is their sum? explain you answer
maxonik [38]
To find an average you add all numbers together then divide by the amount of numbers that you added. So if there are 4 numbers you would divide by 4. By going backwards you can find the answer. Multiply 5 by 4 and you get 20, which is the answer.
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Find the coordinates of the vertex for the parabola defined by the given quadratic function.
Nikolay [14]
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Y+4*6x what does y =
balandron [24]
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3 0
3 years ago
I have a box of chocolates with white, milk and dark chocolate in. The ratio of white to not white is 3:4. The ratio of not dark
Scrat [10]

white : milk : dark

w : m : d

The ratio of white to not white is 3:4

w : (m+d) = 3:4

The ratio of not dark to dark is 17:4.

(w+m) : d = 17:4

---------

We treat the colons as fraction bars and cross multiply.

4w = 3(m+d) = 3m + 3d

4w + 4m = 17 d

Subtracting,

4m = 17d - (3m+3d) = 14d - 3m

7m = 14 d

m/d = 14/7

m:d = 2:1

Since w:(m+d)=3:4 let's make m+d a multiple of 4.

m:d = 8:4

w : (m+d) = 3:4 = 9:12

w:m:d = 9:8:4

Answer: 9:8:4

Check:

white to non white 9 to 8+4=12 = 3:4, good

non dark to dark (9+8):4=17:4, good


8 0
2 years ago
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