Mathematics
30.11.2020 22:13
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Solve for x 6x^2 +7x=20

Solve for x 6x^2 +7x=20
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justin5163
justin5163
4,7(30 marks)

x=4/3    ,   x=-5/2

Step-by-step explanation:

6x^2 +7x=20

6x^2+7x-20=0

(3x−4)(2x+5)

3x-4=0 ,   2x+5=0

3x=4     ,   2x=-5

x=4/3    ,   x=-5/2

avahrider1
avahrider1
5,0(20 marks)

Step-by-step explanation:

New value =

440 + Percentage increase =

440 + (75% × 440) =

440 + 75% × 440 =

(1 + 75%) × 440 =

(100% + 75%) × 440 =

175% × 440 =

175 ÷ 100 × 440 =

175 × 440 ÷ 100 =

77,000 ÷ 100 =

770

Have a great day

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