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AlladinOne [14]
3 years ago
9

-3/5*1/8 as fraction as the anwers

Mathematics
2 answers:
ahrayia [7]3 years ago
4 0

How to get answer:

\mathrm{Multiply\:fractions}:\quad \frac{a}{b}\cdot \frac{c}{d}=\frac{a\:\cdot \:c}{b\:\cdot \:d}\\=-\frac{3\cdot \:1}{5\cdot \:8}\\\mathrm{Multiply\:the\:numbers:}\:3\cdot \:1=3\\=-\frac{3}{5\cdot \:8}\\\mathrm{Multiply\:the\:numbers:}\:5\cdot \:8=40\\=-\frac{3}{40}

Blababa [14]3 years ago
3 0

Answer:= -3/40


Step-by-step explanation:

u have to multiplicate the first therms and the las therms together (-3*1 and -5*8), and the result can´t be reduced.

The numerical result is 0.075


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The product of (4z^2 + 7z - 8) and (-z + 3) is -4z^3 + xz^2 + yz - 24. What is the value of x? What is the value of y?
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Answer:

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Step-by-step explanation:

Given: (4z^2+7z-8)(-z+3)=-4z^3+xz^2+yz-24; find x and y.

Let's start with finding x first. Let's distribute the left side of the equation.

-4z^3+5z^2+29z-24=-4z^3+xz^2+yz-24

Let's move everything we can to the left side of the equation. Some things will cancel out.

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Now, let's move the term that includes x to the left side of the equation. Everything else should be moved to the right.

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Let's get rid of the negative sign in front of x by dividing both sides by -1.

xz^2=5z^2+29z-yz

To get x completely isolated, divide both sides by z^2.

\frac{xz^2}{z^2}=\frac{5z^2}{z^2}+\frac{29z}{z^2}-\frac{yz}{z^2}

Simplify.

x=5+\frac{29}{z}-\frac{y}{z}

Let's solve for y. We will start with the distributed and simplified equation to make it easier.

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Now, let's move the term that includes y to the left side of the equation. Everything else should be moved to the right.

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Again, let's get rid of the negative sign in front of the y by dividing both sides by -1.

yz=5z^2+29z-xz^2

To isolate y, divide both sides by z.

\frac{yz}{z}=\frac{5z^2}{z}+\frac{29z}{z}-\frac{xz^2}{z}

Simplify.

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