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3 years ago

Plz help me with this

Mathematics

2 answers:

mylen [45]3 years ago

8 0

I believe this very answer is actually 11

irinina [24]3 years ago

5 0

Answer: $\bold{\dfrac{1}{(bm)^3}}$

<u>Step-by-step explanation:</u>

To make the exponent positive, flip the fraction.

$(bm)^{-3}=\dfrac{1}{(bm)^3}\\\\\text{You can distribute the exponent to get: }\dfrac{1}{b^3m^3}$

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Plse if have qu give the crown so i can level up

Tanya [424]

Answer:

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3 years ago

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You are selling candy and wrapping paper for the band's Christmas fundraiser. The candy sells for 8 dollars per box and the wrap

Ludmilka [50]

Answer:

The number of boxes of candy sold is 4

The number of rolls of wrapping paper sold is 10

Step-by-step explanation:

Let x = number of boxes of candy that was sold.

Let y = number of rolls of wrapping paper was sold.

The candy sells for 8 dollars per box and the wrapping paper sells for 6 dollars per roll. This means that x boxes of candy and y rolls of wrapping paper will be sold for

$(8x + 6y)

If you have sold 14 items, and collected 92 dollars, this means that

x + y = 14

8x + 6y = 92 - - - - - - -1

Substituting x = 14 - y into equation 1, it becomes

8(14-y) + 6y = 92

112 - 8y + 6y = 92

- 8y + 6y = 92 - 112

-2y = -20

y = 20/2 = 10

x = 14 - y

x = 14 - 10

x = 4

The number of boxes of candy sold is 4.

The number of rolls of wrapping paper sold is 10.

7 0

3 years ago

a woman has $28,000. part is invested for one year in a certificate of deposit paying 7% interest, and the remaining amount in c

alexira [117]

Answer:

Amount invested at 7% = 16000

Amount invested at 9% = 12000

Step-by-step explanation:

Let x be the amount invested at 7% and y be the amount invested at 9%.

Since the total amount invested is $28000, therefore, we can set up the first equation as:

$x+y=28000$

Secondly, we are give that sum of two investments is $2200. Therefore, we can write the second equation as:

$0.07x+0.09y=2200$

Now we need to solve these two equations to get the values of x and y.

First of all, we multiply the second equation with 100 in order to get rid of decimal values.

$(0.07x+0.09y)*100=2200*100\\7x+9y=220000$

Let us use substitution method here. First of all we will solve for y from first equation and plug that into second equation.

$y=28000-x$

$7x+9(28000-x)=220000\\7x+252000-9x=220000\\-2x=-32000\\x=16000$

Therefore, amount invested at 7% is $16000 and amount invested at 9% is 28000-16000=$12000.

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3 years ago

How to convert 9.4 into a fraction

True [87]

$9.4 = \frac{9.4}{1} = \frac{9.4\times 10}{1 \times 10} = \frac{94}{10} = \frac{47 \times 2}{5 \times 2} =\frac{47}{5} = \frac{45+2}{5}= \frac{45}{5} + \frac{2}{5} =9 \frac{2}{5}$

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3 years ago

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What is the volume of a cone that has a circumference of 309 feet and a height of 18 feet

Bas_tet [7]

Answer:

v = 1.8 x 10^6

Step-by-step explanation:

v= π r 2h /3

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4 years ago

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