Answer:
y=3x.........1
y=x^2-10.......2
substituting value of eq 1 to 2
3x=x^2-10
x^2-10-3x=0
x^2-3x-10=0
x^2-5x+2x-10=0
X(x-5)+2(x-5)=0
(x-5)(X+2)=0
then
X=5 or X=-2
again
y=??
when X=5
y=3×5=15
when X=-2
y=-6
The amount given to them is GHS300.00
Step-by-step explanation:
A man gave an amount of money to his three sons Yao, Esi and Ampa in the ratio of their years
- Yao is 15 years
- Esi is 10 years
- Ampa 5 years
- Esi had GHS100.00
We need to find the amount given to them
Let us use the ratio method to solve the problem
∵ Yao is 15 years old
∵ Esi is 10 years old
∵ Ampa is 5 years old
∴ The ratio between them is
→ Yao : Esi : Ampa
→ 15 : 10 : 5
Simplify the terms of the ratio by divide each term by 5
∴ The ratio between their ages in the simplest form is
→ Yao : Esi : Ampa
→ 3 : 2 : 1
∵ Esi had GHS100.00
→ Yao : Esi : Ampa : Total
→ 3 : 2 : 1 : 6 ( 3 + 2 + 1 = 6)
→ : 100 : : x
Use the cross multiplication to find x
∵ 2(x) = 100(6)
∴ 2x = 600
- Divide both sides by 2
∴ x = 300
∵ x represents the total money given to them
∴ The amount given to them is GHS300.00
The amount given to them is GHS300.00
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Answer:
Step-by-step explanation:
hello :
two equations have no real number solution :
x²+1=0 : bcause x²= - 1 false x²≥ 0
4x²+100 =0 : because x² = -25 false x²≥ 0
