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3 years ago

9

a mixture of 5% disinfectant solution is to be made from 8% and 4% disinfectant solution. How much of each solution should be us

ed if 36 gallons of 5% solution is needed ?

1 answer:

Alex777 [14]3 years ago

7 0

5% * 8% * 4% - IDKDKD

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please help! maths test tomorrow and am struggling with revising, if anyone could please explain how to get the answer that woul

masya89 [10]

Answer:

P(roll a number less than 5)= 4/6= 2/3

Step-by-step explanation:

*A dice has 6 faces 1,2,3,4,5,6

*1,3,5 are faces with odd numbers

*2,4,6 are faces with even numbers

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so i would say the probability to roll a dice with a number less

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3 years ago

I'm not sure how to find zeros and multipilicities

yarga [219]

If $p(x)$ is a polynomial, then the zeros of $p(x)$ are the values of $x$ that satisfy $p(x)=0$ .

So for (1), the zeros of $f(x)=(x-4)(x-1)(x+3)$ are the solutions to

$(x-4)(x-1)(x+3)=0\implies x=4,x=1,x=-3$

You can think of the multiplicity of each root as the number of times a root satisfies this equation. In this case, the multiplicity of each root is 1, because there is only one factor of $x-4$ or $x-1$ or $x+3$ .

For (2), the zeros of $g(x)$ are the solutions to

$(x+1)(x-2)^2(x-4)=0\implies x=-1,x=2,x=4$

and the multiplicity of the zero $x=2$ is 2 because there are two factors of $x-2$ in $g(x)$ . The multiplicity of the other roots would be 1.

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3 years ago

Mia went into a fair with $55.75 in her pocket. She bought a hot dog and drink for $2.975 each and then wanted to spend the rest

shusha [124]

Answer: Maximum tickets she can buy is 52

Step-by-step explanation:

After she bought the fries and drinks she was left with $49.81. If she spent the rest of her money on rides/tickets for the rides then she bought 52 tickets to be exact. 0.95x52=49.40

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3 years ago

Suppose you wanted to change the state’s constitution to require public financing for all campaigns. If you were relying on prof

Reil [10]

Answer: $1.5 millions

Step-by-step explanation:

Since the population is in millions and a million is like a fraction many millions.

Therefore, the minimum amount of money you could reasonably expect to spend in order to qualify for this amendment for the ballot is $1.5 millions

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3 years ago

What is 31/72 closest to 0,1,2,3,

makkiz [27]

It's closet to 0 because 72 divided by 2 is 36 and 36 is higher than 31

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4 years ago