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2 years ago

6

Joseph Kitavich wants to determine his average phone bill so he is better able to budget his expenses. In October, November, and

December his bills were $89.87, $45.67, and $34.56, respectively. What is the average monthly expense?

1 answer:

Shalnov [3]2 years ago

4 0

To get the avarage you have to add all the bills and divide by the number of months.

89.87+45.67+34.56= 170.1
170.1 ÷3= 56.70
The answer is $56.70.

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6. El pez de Jill pesa 8 veces más que su periquito.

stich3 [128]

I believe it is 7.875. If you want it simplified it would be 8 ounces. Please give me brainliest!

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2 years ago

PLEASE HEP ASAP!!!!!!! 30 POINTS!!!!!

anzhelika [568]

Answer:

a) 42°F < x < 176°F

b) The inequality graph is attached.

c) No, This is because at 20° F benzene would not be in liquid form but in solid form.

Step-by-step explanation:

According to the Question,

a) For the benzene to remain in liquid form, the temperature of benzene must be less than the boiling point and greater than the boiling point. Let x be the temperature of benzene, For benzene to remain as liquid, its temperature must be between:

42°F < x < 176°F

b) The inequality graph is attached. The graph shows that the temperature of benzene must be between 42°F and 176°F so that it would be a liquid. The Closed circles represent that it is greater than 2.

c) No, This is because at 20° F benzene would not be in liquid form but in solid form. Because the temperature cannot go below 42 before it freezes, she would not have been able to conduct her research .

5 0

1 year ago

A customer/member owes $10.51 and pays $50.00 in cash. The change due is $39.49. Provide the amount owed using the smallest numb

Zigmanuir [339]

The number is 14 bill or coins

Step-by-step explanation:

The method to use the smallest number of bills and coins possible is to utilize the largest denominations possible.

The balance is $39.49

$39.49

-$20.00 -------------a $20 bill is the largest bill not larger than the total ($39.49)

-------------

$19.49

-$10.00--a $10 bill is the largest bill not larger than the remaining ($19.49)

----------

$9.49

-$5.00------a $5 bill is the largest bill not larger than the remaining ($9.45)

----------

$4.49

-$1.00-------a $1 bill is the largest bill not larger than the remaining ($4.49)

---------

$3.49

-$1.00-------a $1 bill is the largest bill not larger than the remaining ($3.49)

----------

$2.49

-$1.00------a $1 bill is the largest bill not larger than the remaining ($2.49)

----------

$1.49

-$1.00------a $1 bill is the largest bill not larger than the remaining ($1.49)

-----------

$0.49

-$0.25---- a quarter is the largest coin not larger than the remaining ($0.49)

----------

$0.24

-$0.10----a dime is the largest coin not larger than the remaining ($0.24)

---------

$0.14

-$0.10--a dime is the largest coin not larger than the remaining($0.14)

---------

$0.04

- a penny, ($0.01) is the largest coin not larger than the remaining ($0.04). Here you have 4 pennies

Now you have Bill and Coin as;

1 $20 bill

1 $10 bill

1 $5 bill

4 $1 bill

1 quarter

2 dime

4 penny

14 bill or coins

Learn More

Bill and coins :brainly.com/question/3871376

Keyword : owes, bills, coins

#LearnwithBrainly

5 0

2 years ago

A piece of paper is to display ~128~ 128 space, 128, space square inches of text. If there are to be one-inch margins on both si

Grace [21]

Answer:

The dimensions of the smallest piece that can be used are: 10 by 20 and the area is 200 square inches

Step-by-step explanation:

We have that:

$Area = 128$

Let the dimension of the paper be x and y;

Such that:

$Length = x$

$Width = y$

So:

$Area = x * y$

Substitute 128 for Area

$128 = x * y$

Make x the subject

$x = \frac{128}{y}$

When 1 inch margin is at top and bottom

The length becomes:

$Length = x + 1 + 1$

$Length = x + 2$

When 2 inch margin is at both sides

The width becomes:

$Width = y + 2 + 2$

$Width = y + 4$

The New Area (A) is then calculated as:

$A = (x + 2) * (y + 4)$

Substitute $\frac{128}{y}$ for x

$A = (\frac{128}{y} + 2) * (y + 4)$

Open Brackets

$A = 128 + \frac{512}{y} + 2y + 8$

Collect Like Terms

$A = \frac{512}{y} + 2y + 8+128$

$A = \frac{512}{y} + 2y + 136$

$A= 512y^{-1} + 2y + 136$

To calculate the smallest possible value of y, we have to apply calculus.

Different A with respect to y

$A' = -512y^{-2} + 2$

Set

$A' = 0$

This gives:

$0 = -512y^{-2} + 2$

Collect Like Terms

$512y^{-2} = 2$

Multiply through by $y^2$

$y^2 * 512y^{-2} = 2 * y^2$

$512 = 2y^2$

Divide through by 2

$256=y^2$

Take square roots of both sides

$\sqrt{256=y^2$

$16=y$

$y = 16$

Recall that:

$x = \frac{128}{y}$

$x = \frac{128}{16}$

$x = 8$

Recall that the new dimensions are:

$Length = x + 2$

$Width = y + 4$

So:

$Length = 8 + 2$

$Length = 10$

$Width = 16 + 4$

$Width = 20$

To double-check;

Differentiate A'

$A' = -512y^{-2} + 2$

$A" = -2 * -512y^{-3}$

$A" = 1024y^{-3}$

$A" = \frac{1024}{y^3}$

The above value is:

$A" = \frac{1024}{y^3} > 0$

This means that the calculated values are at minimum.

<em>Hence, the dimensions of the smallest piece that can be used are: 10 by 20 and the area is 200 square inches</em>

3 0

1 year ago

Grandma is trying out a new recipe for raisin bread. Each batch of bread dough makes three loaves, and each loaf contains 15 sli

Tom [10]

Answer:

0.108

Step-by-step explanation:

Using the poisson probability process :

Where :

P(x =x) = (e^-λ * λ^x) ÷ x!

Given that :

Each batch of bread = 3 loaves

Each loaf = 15 slices

Total slice per batch = 15 * 3 = 45 slices

Number of raising added = 100

Average number of raisin per slice, λ = 100/45 = 20/9

Hence,

Probability that a randomly chosen slice has no raising :

P(x = 0) = (e^-λ * λ^x) ÷ x!

P(x = 0) = (e^-(100/45) * (100/45)^0) ÷ 0!

P(x = 0) = (0.1083680 * 1) / 1

P(x = 0) = 0.108

8 0

2 years ago