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3 years ago

6

In mr. Lee's store, he has14 starburst, 12 twix, 10 snickers, and 4 kitkat. What percent of candy are twix?

1 answer:

Anuta_ua [19.1K]3 years ago

3 0

Answer:

30%

Step-by-step explanation:

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The base and sides of a container is made of wood panels. The container does not have a lid. The base and sides are rectangular.

vfiekz [6]

Answer:

Minimum surface area = $70.77 cm^2$

Step-by-step explanation:

We are given that

Width of container=x cm

Length of container=2x cm

Volume of container= $54 cm^3$

We have to find the minimum surface areas that this container will have.

Volume of container= $l\times b\times h$

$x\times 2x\times h=54$

$2x^2h=54$

$h=\frac{54}{2x^2}=\frac{27}{x^2}$

Surface area of container= $2(b+l)h+lb$

Because the container does not have lid

Surface area of container= $S=2(2x+x)\times \frac{27}{x^2}+2x\times x$

$S=\frac{162}{x}+2x^2$

Differentiate w.r.t x

$\frac{dS}{dx}=-\frac{162}{x^2}+4x$

$\frac{dx^n}{dx}=nx^{n-1}$

Substitute $\frac{dS}{dx}=0$

$-\frac{162}{x^2}+4x=0$

$4x=\frac{162}{x^2}$

$x^3=\frac{162}{4}=40.5$

$x^3=40.5$

$x=(40.5)^{\frac{1}{3}}$

$x=3.4$

Again differentiate w.r.t x

$\frac{d^2S}{dx^2}=\frac{324}{x^3}+4$

Substitute x=3.4

$\frac{d^2S}{dx^2}=\frac{324}{(3.4)^3}+4=12.24>0$

Hence, function is minimum at x=3.4

Substitute x=3.4

Then, we get

Minimum surface area = $\frac{162}{(3.4)}+2(3.4)^2=70.77 cm^2$

8 0

3 years ago

Is 2 + 2 = 4 - 1 is 3 quick maths I need to know ASAP

Kitty [74]

Yes, 2 + 2 = 4 - 1 does equal 3

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3 years ago

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The price of gas was $1.80 in September then $2.07 in October. Find the percent of change from

Aleksandr [31]

The percent increase from $1.80 to $2.07 is 15%.

2.07 / 1.80 = 1.15 - 1 = 15% increase.

If you were trying to find how much $1.80 of $2.07 was in percentage, then here you go:

1.80 * 100 (out of 100%) = 180
180 / 2.07 = 86.95
86.95%

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4 years ago

Round 13 .3 to the nearest whole number

LiRa [457]

13.3

Since 3 is LESS than 5 we round down to 13.

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3 years ago

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Three pounds of lawn seed covers 1800 am square feet. How many 4 pound bags are needed to cover 8400 square feet?

Kaylis [27]

Answer:

By being stupid and don’t follow directions to boss

Step-by-step explanation:

Never listen that’s that one don’t go to work no more step to and never ever ever talk to the boss

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3 years ago