Y=-2x-3,y=-2x+2 how many solutions does the system have
1 answer:
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Answer:
x =
x = -1
Step-by-step explanation:
The given equation is,
-2(bx - 5) = 16
Dividing by (-2) on both sides of the equation,
(bx - 5) = -8
By adding 5 on both the sides of the equation,
(bx - 5) + 5 = -8 + 5
bx = -3
Dividing by 'b' on both the sides of the equation,
x =
If b = 3,
x =
x = -1
Calculate the interest for a year
interest/year = percentage × deposit
interest/year = 7.5% × 300
interest/year =
interest/year =
interest/year = 22.5
She will get $22.5 in a year
Calculate interest in 5 years
interest in 5 years = interest per year × 5
interest in 5 years = 22.5 × 5
interest in 5 years = 112.5
She will get $112.50 in 5 years
interest/year = percentage × deposit
interest/year = 7.5% × 300
interest/year =
interest/year =
interest/year = 22.5
She will get $22.5 in a year
Calculate interest in 5 years
interest in 5 years = interest per year × 5
interest in 5 years = 22.5 × 5
interest in 5 years = 112.5
She will get $112.50 in 5 years