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3 years ago

Pliz help...............

Mathematics

1 answer:

katrin [286]3 years ago

8 0

Answer:

Step-by-step explanation: so 7 out of 20 .35 right

and that as a percent is 35%

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Reduce to simplest form. -\dfrac{1}{3}-\left(-\dfrac{3}{5}\right)=− 3 1 −(− 5 3 )=minus, start fraction, 1, divided by, 3, e

nevsk [136]

Answer:

-1/3 - (-3/5) = 4/15

Step-by-step explanation:

Reduce to simplest form

-1/3 - (-3/5)

= -1/3 + 3/5

Find the Lowest Common Multiple of 3 and 5

Lowest Common Multiple of 3and 5 is 15

Use the LCM to Simplify

= {(-5*1)+(3*3)} / 15

= (-5+9) / 15

= 4/15

Therefore,

-1/3 - (-3/5) = 4/15

7 0

2 years ago

Read 2 more answers

64,000 in<br> a fraction

earnstyle [38]

Answer:

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Step-by-step explanation:

4 0

3 years ago

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Find the volume of the largest rectangular box in the first octant with three faces in the coordinate planes and one vertex in t

Tresset [83]

Answer: The volume of largest rectangular box is 4.5 units.

Step-by-step explanation:

Since we have given that

Volume = $xyz$

with subject to $x+2y+3z=9$

So, let $z=\dfrac{9-x-2y}{3}$

So, Volume becomes,

$V=xyz\\\\V=xy(\dfrac{9-x-2y}{3})\\\\V=\dfrac{9xy-x^2y-2xy^2}{3}$

Partially derivative wrt x and y we get that

$9-2x-2y=0\implies 2x+2y=9\\\\and\\\\9-x-4y=0\implies x+4y=9$

By solving these two equations, we get that

$x=3,y=\dfrac{3}{2}$

So, $z=\dfrac{9-x-2y}{3}=\dfrac{9-3-3}{3}=\dfrac{3}{3}=1$

So, Volume of largest rectangular box would be

$xyz=3\times \dfrac{3}{2}\times 1=\dfrac{9}{2}=4.5$

Hence, the volume of largest rectangular box is 4.5 units.

4 0

3 years ago

Leon drew 2 fraction cards that were between 1/6 and 1/2. The sum of the 2 cards are between?

ss7ja [257]

fndadhfuhadifhaStep-by-step explanation:

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3 years ago

What is negative 2/7 + 1/4 =

horrorfan [7]

Answer:

-0.03571428571

Step-by-step explanation:

7 0

2 years ago

Pliz help...............​

Pliz help...............