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fenix001 [56]
3 years ago
13

How do u work this problem out

Mathematics
1 answer:
charle [14.2K]3 years ago
4 0
Okay what problem is it that you need help with??
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Please help me solve this..​
Nataliya [291]

Answer:

5

Step-by-step explanation:

Let a = number of pieces of chocolate bought by Amin.

Let b = number of pieces of chocolate bought by Bob.

b = 2a

(a - 3)(b - 3) = 14

ab - 3a - 3b + 9 = 14

a(2a) - 3a - 3(2a) = 5

2a^2 - 3a - 6a = 5

2a^2 - 9a - 5 = 0

(2a + 1)(a - 5) = 0

2a + 1 = 0  or  a - 5 = 0

a = -1/2  or  a = 5

Amin cannot have bought -1/2 pieces of chocolate, so we discard the soluion a = -1/2.

a = 5

Answer: 5

3 0
2 years ago
Read 2 more answers
PLEASE ANSWERRRRRRRRRRRRRRRRRRR
DochEvi [55]
The answer is B.

I hope this helps!
7 0
3 years ago
How would 5,000,000,000 + 70,000,000 + 70,000 + 700 + 8 be written in standard form?
amm1812

five billion seventy million seventy thousand seven hundred and eight

4 0
2 years ago
A line passes through the points (p, a) and (p, –a) where p and a are real numbers. If p=0, what is the y-intercept? Explain you
atroni [7]
A line passes through the points (p, a) and (p, –a) where p and a are real numbers. If p=0, what is the y-intercept? Explain your reasoning. 

<span>p - as "x" never changes with the value of "y", so no matter what y is, x is always "p", so when y is 0, x = p </span>

<span>slope of the line </span>
<span>change in y over the change in x </span>
<span>(-a - a) / (p - p) = infinity - or a vertical line </span>
<span>equation of the line </span>
<span>y = p </span>
<span>slope of a line perpendicular to the given line </span>
<span>inverse of the orig slope or (p - p)/(-a - a) = 0</span>
6 0
3 years ago
Read 2 more answers
If y varies inversely as x and x = 9 when y = 45 , find x when y = 9 .
Harman [31]
I believe it's 1.8, but correct me if I'm wrong.
6 0
3 years ago
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