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3 years ago

Please y'all I really need help finding out x I don't have a lot of points left.

Mathematics

1 answer:

emmasim [6.3K]3 years ago

8 0

Answer:

x = 1/2

Step-by-step explanation:

$\frac{4}{7} x = \frac{2}{7} \\ \\ x = \frac{ \cancel2}{ \cancel7} \times \frac{ \cancel7}{ \cancel4 \: \: 2} \\ \\ x = \frac{1}{2}$

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PLZZ HELP ME

dimulka [17.4K]

Answer:

125/100 X 105 = 131.25

loan total = $131.25

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3 years ago

What is the probability of the spinner landing on an odd number

Nadya [2.5K]

Answer:

1/50* 1/2 =0 .01

Step-by-step explanation:

First, the probability that the spinner lands on 20 is

1 /50

, as 20 is one of the 50 numbers on the wheel, and each number has an equal probability of being selected.

Second, the probability that the spinner lands on an odd number is

1/2

. This is because of the 50 numbers on the wheel, half are even and half are odd.

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3 years ago

Read 2 more answers

The Muffin Man’s shop on Drury Lane charges 8% sales tax. Prince Charming’s purchases at the shop rang up at $34, and the tax wa

Gemiola [76]

Answer:

he multiplied by 0.8 not .08

Step-by-step explanation:

when doing 8% you go back 2 places so 0.08

34×0.08= 2.72

34+2.72= 36.72

7 0

3 years ago

Read 2 more answers

A bin is constructed from sheet metal with a square base and 4 equal rectangular sides. if the bin is constructed from 48 square

kondaur [170]

This is a problem of maxima and minima using derivative.

In the figure shown below we have the representation of this problem, so we know that the base of this bin is square. We also know that there are four square rectangles sides. This bin is a cube, therefore the volume is:

V = length x width x height

That is:

$V = xxy = x^{2}y$

We also know that the <span>bin is constructed from 48 square feet of sheet metal, s</span>o:

Surface area of the square base = $x^{2}$

Surface area of the rectangular sides = $4xy$

Therefore, the total area of the cube is:

$A = 48 ft^{2} = x^{2} + 4xy$

Isolating the variable y in terms of x:

$y = \frac{48- x^{2} }{4x}$

Substituting this value in V:

$V = x^{2}( \frac{48- x^{2} }{x}) = 48x- x^{3}$

Getting the derivative and finding the maxima. This happens when the derivative is equal to zero:

$\frac{dv}{dx} = 48-3x^{2} =0$

Solving for x:

$x = \sqrt{\frac{48}{3}} = \sqrt{16} = 4$

Solving for y:

$y = \frac{48- 4^{2} }{(4)(4)} = 2$

Then, <span>the dimensions of the largest volume of such a bin is:
</span>
Length = 4 ft
Width = 4 ft
Height = 2 ft

And its volume is:

$V = (4^{2} )(2) = 32 ft^{3}$

8 0

3 years ago

A train traveled 317 miles in 10 hours. At this rate, how many miles will the train travel in 2 1/2 hours

Evgen [1.6K]

Answer: 79.25 miles

Ok done. Thank to me :>

8 0

3 years ago