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viktelen [127]
2 years ago
12

Bro no balls youll give me 1$ on Paypal ill give you a whole 100 points :}

Mathematics
2 answers:
IgorC [24]2 years ago
7 0

Answer:

hmmmmmmm

Step-by-step explanation:

nah I am good thx for the free points

EastWind [94]2 years ago
3 0

Answer:

How about you be nice and give it to us hardworkers for free?

Step-by-step explanation:

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Rosa has 55 books and gives 5 of them to her friend. How many does she have left?
Alecsey [184]

Answer:

55-5

50 books she has left

7 0
3 years ago
Bill is 2 years older than his brother Will. If the product of their ages is one less than five times the sum of their ages, how
Advocard [28]

Answer:

Will's age = 9 years

Bill's age = 11years

Step-by-step explanation:

Let will age = x

Bill = x +2 since he is 2 years older

x(x+2) = 5( x +x+2) - 1

Opening brackets

x² + 2x = 5(2x + 2) - 1

x² + 2x = 10x + 10 - 1

x² + 2x = 10x + 9

Collect like terms

x² + 2x - 10x - 9 = 0

x² - 8x - 9 = 0

Solve quadratically using factorisation method by finding two factors of +9 that can add up to give -8, the coefficient of x.

The factors are -9 and +1

x² + x - 9x - 9 = 0

x(x + 1) -9( x +1)

x+1) (x -9) =0

x + 1 = 0 or x -9 =0

x = -1 or 9

Age can not be negative

Therefore,

Will's age = 9 years

Bill's age = x+2 = 9+2 = 11years

I hope this was helpful, please rate as brainliest

6 0
2 years ago
If the diameter of the sphere is 12cm what is the volume of the cylinder
german

r^{2}  \times \pi \times (h = height \: of \: the \: cilinder)
6 0
3 years ago
Can someone help me please I do not know the answer
Afina-wow [57]
You subtract 15.50 from 47.50 
then you will get your answer it is  31
4 0
3 years ago
Seven less than twice a<br> number is negative five.<br> What is the number?
otez555 [7]

Answer:

n = 1

Step-by-step explanation:

Represent the number by n.  Then "seven less than twice a number is -5 becomes 2n - 7 = -5

Next we must solve for n.  Adding 7 to both sides yields 2n = 2, so that

n = 1

5 0
2 years ago
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