On a test with 30 questions, Bill answered 80% correctly. How many answers did he get wrong?

1 answer:

5 0

Answer:

30 X .8=24 30-24=6 bill got 6 questions wrong

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Ierofanga [76]

Answer:

$8(3x + 10) = 28x - 14 - 4x \\ 8 \times 3x + 8 \times 10 = 28x - 14 - 4x \\ 24x + 80 = 24x - 14 \\ 0x = 94 \\ x = > has \: no \: solution$

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viktelen [127]

M - 30 = 10

so the number has to be 10 more than 30.

30+ 10 = m

m = 40

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3 years ago

Nikitich [7]

Divide both sides by 0.32 and you'll get the value for c

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3 years ago

ella [17]

Answer:

f(x)=5x^3-2x^2-90x-36=0

=x^2(5x-2)-18(5x-2)=(x^2-18)(5x-2)=0

x^2-18=0/5x-2=0

x^2=18=x=9√2

5x-2=0

x=2/5

zeros are 9√2,2/5

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2 years ago

scZoUnD [109]

346
It is .346 times 1,000

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3 years ago