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3 years ago

6+4/5b=9/10b solve for b

2 answers:

6 0

(6 + 4)/5b = 9/10b

Firstly multiply both sides by 5b - this will get rid of the /5b
6 + 4 = 9/5b
10 = 9/5b

Multiply for another 5b - to get rid of the remaining 5b
10*5b = 9
50b = 9
b = 9/50
b = 0.18

The answer is: b = 9/50 or 0.18

Please give me brainliest answer if I helped!

butalik [34]3 years ago

5 0

<span>This is the answer b = 60
</span>

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A container of coffee is 1/6 full. That container contains 2/3 of a pound of coffee write a division expression that represents

Marizza181 [45]

Let us assume total capacity of the container = x pounds.

Container contains 1/6th coffee of total x pounds, that is x/6 pounds.

We also given that 1/6th part is equal to 2/3 of a pound.

So, we could setup an equation now.

x/6 pounds equals 2/3 of a pound.

$\frac{x}{6} = \frac{2}{3}$

Dividing both sides by 1/6, we get

$\frac{x}{6}$ ÷ $\frac{1}{6}$ = $\frac{2}{3}$ ÷ $\frac{1}{6}$ .

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3 years ago

An open-top box with a square base is to have a volume of 4 cubic feet. Find the dimensions of the box (in ft) that can be made

Lemur [1.5K]

Answer:

The dimension of box= $2ft\times 2ft\times 1ft$

Step-by-step explanation:

We are given that

Volume of box=4 cubic feet

Let x be the side of square base and h be the height of box

Volume of box= $lbh=x^2h$

$4=x^2h$

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

Now, surface area of box,A= $x^2+4xh$

$A=x^2+4x(\frac{4}{x^2})=x^2+\frac{16}{x}$

$\frac{dA}{dx}=2x-\frac{16}{x^2}$

$\frac{dA}{dx}=0$

$2x-\frac{16}{x^2}=0$

$2x=\frac{16}{x^2}$

$x^3=8$

$x=2$

$\frac{d^2A}{dx^2}=2+\frac{32}{x^3}$

Substitute x=2

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Hence, the dimension of box= $2ft\times 2ft\times 1ft$

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2 years ago

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mart [117]

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3 years ago

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neonofarm [45]

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2 years ago