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S_A_V [24]
3 years ago
9

Which of the following statements describes a correct method for solving the equation below?

Mathematics
1 answer:
Georgia [21]3 years ago
6 0
A.
You must perform the opposite reaction when cancelling out numbers.
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How can I learn to do standard notation and scientific notation?
jonny [76]
Just watch videos on youtube.
5 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
3 years ago
Ted and Maggie solved the following equation, (3x - 2)(x + 5) = 0. Their
VLD [36.1K]

Answer:

maggie

Step-by-step explanation:

3 0
3 years ago
If the number of people is greater than the number of segments each person will get less than one segment
babymother [125]
Is this even a question, it seems to be more of a statement..
3 0
3 years ago
Which percent is equivalent to ?
AleksAgata [21]
It would be 340%. First, you need to find out what the fraction is for 2/5. 2/5 as a decimal would be .4. Next you put that back with the three which is 3.4. After that, you need to turn that into a percentage by multiplying it by 100 which then equals 340. add the % to it and that gives you 340%.
3 0
3 years ago
Read 2 more answers
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