suppose you want to buy software for your computer. One piece of software costs $20.75. Another costs $10.59 and a third costs $18.25.
Use mental math to find the total cost. Explain.
How much more is the first piece of software than the second? Use mental math to decide.

Answers

Answer 1

Answer:

The total cost is 49.59 the answer for the second question is 10.16

Step-by-step explanation:

Part A. self explanatory, i just added all of the pieces together and got 49.59.

Part B. I just solved the expression 20.75 - 10.59 and got 10.16.


Related Questions

Find x
8(x-27)+49=87+28x

Answers

Answer:

x = -12.7

Step-by-step explanation:

[tex]8(x-27)+49=87+28x\\\\8x-167=87+28x\\\\8x-167+167=87+28x+167\\\\8x=28x+254\\\\8x-28x=28x-28x+254\\\\-20x=254\\\\\frac{-20x=254}{-20}\\\\ \boxed{x=-12.7}[/tex]

Hope this helps.

Answer:

x=-127/10 or x= -12.7

Step-by-step explanation:

8(x−27)+49=87+28x

Step 1: Simplify both sides of the equation.

8(x−27)+49=87+28x

(8)(x)+(8)(−27)+49=87+28x(Distribute)

8x+−216+49=87+28x

(8x)+(−216+49)=28x+87(Combine Like Terms)

8x+−167=28x+87

8x−167=28x+87

Step 2: Subtract 28x from both sides.

8x−167−28x=28x+87−28x

−20x−167=87

Step 3: Add 167 to both sides.

−20x−167+167=87+167

−20x=254

Step 4: Divide both sides by -20.

−20x/−20

=

254/−20

x=

−127/10

Determine the slope

(4,12) and (6,20)

Answers

M=4 the slope to your equation is 4.

Answer:

4

Step-by-step explanation:

What is 10/3(fraction) times 6/5(fraction)

Answers

Answer:

4

Step-by-step explanation:

When multiplying those fractions, you multiply the top (numerators) by each other and you'll get 60

Then when you divide the denominators you'll get 15.

60 divided by 15 is 4.

10/3 x 6/5 = 4

Step-by-step explanation:

You multiply the numerators together, same with the denominator. You get 60/15. You divide those numbers so you get 4 as your answer. Hope this helps!

Find the percent increase or decrease from Monday to Tuesday.
Miles Jan walked Monday: 12
Miles Jan walked Tuesday: 3

Answers

multiply 12 and 3 and your answer should b36.

Answer:

multiply 12 and 3 and your answer should b36.

Step-by-step explanation:

is this carret

What is 20 mulitpyed by 50

Answers

it is 1000 because 2 x 5 =10 then just add the extra 2 0s from 20 and 50

Answer:

1,000

Step-by-step explanation:

the sum of three consecutive odd integers is 57. what are the three integers

Answers

Answer:

17,19,21

Step-by-step explanation:

let the first odd number be "x"

formular : (x)+(x+2)+(x+4).

3x+6=57

3x=57-6

3x=51

x=51/3

x=17

apply the formular.

17,(17+2),(17+4)

17,19,21.

Name the longest and shortest side in the triangle.

Answers

Answer:

the answer is C Because the lm is the long side and mn is the short side

When playing a track on the outer edge, a CD rotates 300 times per
minute. Through how many degrees does it rotate in one second?

Answers

Answer:

I think it's 1800 Degress

Step-by-step explanation:

If the CD rotates 300 times per minute, we know that equals 300 rotations/60 seconds

That ends up being 5 rotations per second.

Since we know that a full rotation is 360 degrees, then it should equal 1800 degrees.

Hope that helps, let me know if this does or not.

how would you write 8.235 E14 in standard form​

Answers

Answer:

what????

Step-by-step explanation:

The leg of a right triangle is 3 units and the hypotenuse is 4 units. What is the length, in units, of the other leg of the triangle?

Square root of 5
Square root of 7
5
7

Answers

Answer:

7

Step-by-step explanation:

let the other leg be x

Then using Pythagoras' identity

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + 3² = 4²

x² + 9 = 16 ( subtract 9 from both sides )

x² = 7 ( take the square root of both sides )

x = 7

Answer:

7

Step-by-step explanation:

let the other leg be x

Then using Pythagoras' identity

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + 3² = 4²

x² + 9 = 16 ( subtract 9 from both sides )

x² = 7 ( take the square root of both sides )

x = 7

1. Find the equation of the circle that has a line segment with end points (18,-13) and (4,-3) as the circle diameter. The equation takes the form (x - h)2 + (y - k)2 = 2. Where h is the x coordinate, k is the y coordinate of the center and r is the radius of the circle. h = k =​

Answers

Answer:

           (x - 11)² + (y + 8)² = 74

Step-by-step explanation:

The equation takes the form (x - h)² + (y - k)² = r², where  h is the x coordinate, k is the y coordinate of the center and r is the radius of the circle.

The center of circle is the middle of diameter.

The radius is the distance between the center and any point from the circumference of a circle.

The middle of diameter:

[tex]\left(\frac{18+4}2\,;\,\frac{-13-3}2\right)=\left(\frac{22}2\,;\,\frac{-16}2\right)= \left(11\,;-8\right)[/tex]   ⇒ h = 11, k = -8

The distance between the center and point (4,-3)

[tex]r=\sqrt{(11-4)^2+(-8-(-3))^2}=\sqrt{7^2+(-5)^2}=\sqrt{49+25}=\sqrt{74}[/tex]

so the equation:

(x - 11)² + (y - (-8))² = (√74)²

(x - 11)² + (y + 8)² = 74

Which of the following results in the expression 0.43 x 52?

52% of 0.42
43 of 52%
0.52 of 43%
43% of 52

Answers

A

Step-by-step explanation:

because when you find a percentage out of something you multiply them together and then divide by 100.

Answer:

43 of 52

Step-by-step explanation:

it was right when i did the quiz this is the right one believe me

A shipping company sells a rectangular box with dimensions of 12
inches by 12 inches by 18 inches. Find the length of the longest
diagonal in the box.
24.7.
24.8
O 288
0 612

Answers

Answer:

24.7 inches

Step-by-step explanation:

Length = 18 inches

Width = 12 inches

Height = 12 inches

Length of the longest diagonal,d = length^2 + width^2 + height^2

d^2 = 18^2 + 12^2 + 12^2

d^2 = 324 + 144 + 144

d^2 = 612

d = √612

= 24.7 of inches

Length of the longest diagonal in the box = 24.7 inches

Solve for the value of q.
134°
(9q-8)

Answers

Answer:

If you mean that 134 degrees = (9q - 8), the answer is: q = 15.78 degrees

Step-by-step explanation:

134 degrees = 9q - 8

142 = 9q

142/9 = q

15.78 = q

q = 15.78 degrees

Pythagorean Therom.What is the length of segment AB?

Answers

Answer:

A square + B square = C square

Step-by-step explanation:

When you solve |2x+6|=4x it has one extraneous solution at x=-1
true or false

Answers

It’s true hope that helped have a good night

SOMEONE PLS HELP ME PLEASE I BEG U AND SHOW WHY PLS I BEG

Answers

Answer:

The answer is less than one

Step-by-step explanation:

Because 1/2= less than 3

1 1/2= 3 and is less than 9

2 1/2= 5 not 15


Which equation below shows a correct first step for solving 3x = -12
A 3x+ 3 = -12 + 3
B 3x- 3 = -12 - 3
C 3(3x) = 3(-12)
D 3x/3=-12/3

Answers

The answer is A. You just solve each one and you would find that it would be the same as 3x=-12.

whats the answer to number 4?
please and thank you

Answers

Answer:

90+55+x

145+x=180*

=35

answer: 35°

explanation: the sum of all the interior angles in a triangle will always equal 180°. in this triangle we have a right angle which is equal to 90°, a 55° angle, and x°. To find out x you would do 90 + 55 = 145. once you get that you would then do 180 - 145 = 35. So, X = 35°

por favor ayúdeme!!​

Answers

Answer:

CHEEEEEEEEESE

Step-by-step explanation:

If the temperature is 95 degree F,what is the temperatur in Celsius

Answers

Answer:

35 degree celcuis

Step-by-step explanation:

Nicole wants to buy a charm bracelet. Summerfield Fine Jewelry charges $26 per charm, plus $19 for the bracelet. Flynn Jewelers, in contrast, charges $27 per charm and $11 for the bracelet. If Nicole wants to add a certain number of charms to her bracelet, the cost will be the same at either jewelry shop. How many charms would that be? What would the total cost of the bracelet be?

Answers

Answer:

There are 8 number of charms

Total cost = $227

Step-by-step explanation:

Let

Number of charms = c

Summerfield Fine Jewelry charges $26 per charm, plus $19 for the bracelet.

26c + 19

Flynn Jewelers charges $27 per charm and $11 for the bracelet

27c + 11

How many charms would that be ?

Equate the cost at both jewelry shop

26c + 19 = 27c + 11

Collect like terms

26c - 27c = 11 - 19

-c = - 8

c = 8

There are 8 number of charms

What would the total cost of the bracelet be?

Using any of the jewelry shop cost

Flynn Jewelers cost

= 27c + 11

= 27(8) + 11

= 216 + 11

= 227

Total cost = $227

The Martinez family is traveling to a play in Richmond. A round trip train ticket costs $8.00. Children under the age of 7 travel for half price. ($4.00) Tickets for the play are $14.00 for an adult and $6.00 for a child. Mr. And Mrs. Martinez will go with their children, Ricky, Ramona, and Thomas. Ricky and Ramona are 12 years old. Thomas is 6 years old. How much did the Martinez family spend for the train ride and play tickets?

Answers

Answer: The Martinex family spent $ 82 for train ride and play tickets.

Step-by-step explanation:

Round trip train cost = $ 8.00

For children it cost $ 4.00.

For adult, ticket for play costs= $ 14.00

For children , ticket for play costs= $ 6.00

Mr. And Mrs. Martinez will go with their children, Ricky, Ramona, and Thomas.

2 adults and 3 children ( only one of them is under 7.)

For train we consider only 1 as child rest as adult.

Train cost =  4 x($ 8.00)+ 1 x ($ 4.00)

= $ 32+4 = $36

For play , total cost = 2 x ( $ 14.00) + 3 x ($6)

= $(28+18)

= $ 46

Total spending ( combined) =  $36+$ 46

= $82

So, the Martinex family spent $ 82 for train ride and play tickets.

PLEASE HURRY. An electrician charges $45 per hour plus a fixed charge of $30 which of these equations could be used to determine C, the cost an electrician charges for h hours of work?

Answers

$45 per hour plus a fixed change of $30

Anagha's mother bought an equal number of ladoos and pedas. She put 13 of the ladoos and 15 of the pedas into a packet and gave it to Anagha to distribute at school. If there were a total of 80 sweets in the packet, how many ladoos did Anagha's mother buy?

Answers

Answer:

150

Step-by-step explanation:

Anagha's mother bought an equal number of ladoos and pedas. Let there are x number of ladoos and pedas.

She puts x/3 of the ladoos and x/5 of the pedas into a packet and gave it to Anagha to distribute at school.

Total no of sweets in the packet = 80

[tex]\dfrac{x}{3}+\dfrac{x}{5}=80\\\\\dfrac{5x+3x}{15}=80\\\\\dfrac{8x}{15}=80\\\\x=\dfrac{80\times 15}{8}\\\\x=150[/tex]

So, there are 150 ladoos brought by Anagha's mother.

what is the value of (-2)^6 ?

Answers

Answer:

64

Step-by-step explanation:

Answer:

-64 would be the answer

Is that the right answer ?

Answers

Answer:

Yes, that is correct

Step-by-step explanation:

The formula for the slope can be referred to as "rise over run", a fraction where the rise (change in the y direction) is divided by the run (change in the x direction).

We can get the rise and run by choosing two points on the slope and looking for the change in the x and y direction. In this case, let us use the points (-4,0) and (0,-5). The change in the y direction is from 0 to -5, thus the rise will be -5. Likewise, the change change in the x direction is from -4 to 0 and the run will be 4.

Going back to "rise over run", we divide the rise by the run, giving us -5/4

answer to all these in order please !

Answers

Answer:

?? 6363

Step-by-step explanation:

a large study used records from canada's national health care system to compare the effectiveness of two ways to treat prostate disease. The two treatments are traditional surgery and a new method that does not require surgery. The records described many patients whose doctors had chosen each method. The study found that patients treated by the new method were significantly more likely to die within 8 years. You have 300 prostate patients who are willing to serve as subjects in an experiment to compare the two methods. Describe a completely randomized design for this experiment. Write a few sentences describing how you would implement your design.

Answers

Answer:

To order to obtain the outcome, researchers should provide the health outcomes of every other process. Below however is the clarification given.

Step-by-step explanation:

Researchers are gathering medical reports from 200 surgeons as well as 200 non-surgeons who use surgical care. For such individuals, the researchers report ten-decade health outcomes as well as to measure which group lasts longer.These are ended up finding, as stated in the above research article, that patients treated by either a particular technique are more likely to suffer in less than 8 years.

which equations have exactly one y-value for any given x-value? select all that apply
A.y=-x
B.x=4
C.y=x^2
D.y=x^3

Answers

Answer:x=4

Step-by-step explanation:

The equations y = -x,y = x², and y = x³ have one y-values for a given x-value thus options (A) ,(C) and (D) will be correct.

What is the equation?

There are many different ways to define an equation.

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.

In another word, the equation must be constrained with some constraints.

In the first option y = -x

The value of y will be negative of x thus it will be single for every single x.

In the third option x = x² here for every x there will be a single y thus it will be single for every single x.

In option fourth option y = x³ here for x, y will be one thus it will be single for every single x.

In option (B) x = 4 here y is changing for x = 4 thus here y will not be one.

Hence "The equations y = -x,y = x², and y = x³ have one y-values for a given x-value".

For more about the equation,

brainly.com/question/10413253

#SPJ5

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