Hey please help this is due today
2 answers:
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Answer:
900
Step-by-step explanation:
The ratio of the number of people who own a smartphone to the number of people who a flip phone is 5:3.
Let the number of people who own a flip phone=x
If 600 more people own a smartphone than a flip phone, then the number of people who own a smartphone=x+600
To find x, we express the ratio and population as an equality.
5:3=x+600:x
Expressing the ratios as fractions would give:
Next, we cross multiply
5x=3(x+600)
Open the brackets by expansion.
5x=3x+(3 X 600)
5x=3x+1800
Subtract 3x from both sides.
5x-3x=3x-3x+1800
2x=1800
Divide both sides by 2
x=900.
Since x=900, the number of people who own a flip phone is 900.
Answer:
A
Step-by-step explanation:
Given
- 2x(5x - 2) = 0
Equate each factor to zero and solve for x
- 2x = 0 ⇒ x = 0
5x - 2 = 0 ⇒ 5x = 2 ⇒ x =
Solutions are
x = 0, x =