Mathematics High School

Round 12.478 to the nearest tenth.

Answers

Answer 1

Answer:

12.5

Step-by-step explanation:

Answer 2

Answer:

12.5

Step-by-step explanation:

If the number after the place you are trying to round is less than five it doesn't change. If it is five or higher, the number goes up by one.

Related Questions

A bathtub has 50 gallons of water in it. It drains at a rate of 5 gallons per minute. How long will it take to drain?

Answers

Answer:

10 minutes

Step-by-step explanation:

50 divided by 5= 10

Answer:

10 minutes

Step-by-step explanation:

You are dividing in this equation 50 by 5

50 divided by 5 is 10 since 10x5 is 50

plz help!! polynomial long division (level 1)

Answers

Answer: this is the answer--->[tex]4x^2+3x+10[/tex]

13 POINTS! EVALUATE AND SHOW ALL WORK

Answers

Answer:

Step-by-step explanation:

Solving in steps

3| 4.5 - 2| - 5 |-1.5 -(- 3)| =3 |2.5| -5 |-1.5 + 3| =3*2.5 - 5|1.5| =7.5 - 5*1.5 =7.5 - 7.5=0

3+(4 times 5-2)+8 what’s the answer

Answers

Answer:

Step-by-step explanation:

Answer:

3+(4×5-2)+8

Step-by-step explanation:

3+(20-2)+8

3+18+8

21+8

29 Ans

The area A of the rectangle shown
is described with the inequality
60 A 140. Write and solve a
compound inequality for x.

Answers

Step-by-step explanation:

Simplifying

4x + -5 = 20x

Reorder the terms:

-5 + 4x = 20x

Solving

-5 + 4x = 20x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-20x' to each side of the equation.

-5 + 4x + -20x = 20x + -20x

Combine like terms: 4x + -20x = -16x

-5 + -16x = 20x + -20x

Combine like terms: 20x + -20x = 0

-5 + -16x = 0

Add '5' to each side of the equation.

-5 + 5 + -16x = 0 + 5

Combine like terms: -5 + 5 = 0

0 + -16x = 0 + 5

-16x = 0 + 5

Combine like terms: 0 + 5 = 5

-16x = 5

Divide each side by '-16'.

x = -0.3125

Simplifying

x = -0.3125

What is a group of objects that share common characteristics and are well-defined?

Answers

Answer:

The options as included in the attachment section are:

A. real numbers B.Cardinality C.element D.Set

The answer is D. Set

Step-by-step explanation:

In mathematics, a set is a group of well-defined objects that share common characteristics as rightly stated in this question. So in a mathematical calculation, the elements or objects collected as a group is called SET. The types of set include empty set, finite set, infinite set, universal set etc.

- Since set represents the whole collection or group, each object, which can be number, letter etc. in the group is an ELEMENT. Likewise, the cardinality of a set refers to the number of elements contained in a particular set.

Find the slope of the line that is perpendicular to y= -1/2x+11

Answers

Answer:

The slope is 2

Step-by-step explanation:

The sign changes and the slope will be be the reciprocal (flipped)

Answer:

Step-by-step explanation:

hi! to find the perpendicular slope, you have to flip the fraction to its reciprocal and use the opposite sign (- or +).

-1/2's reciprocal is -2, and its opposite sign is +, so the slope of the line that is perpendicular to this line is 2.

Which expression would represent the cost of one CD, if the total cost for three of them is $36?
3(36)
O 36-3
O
36
3
O3 + 36

Answers

Answer:

[tex] \frac{36}{3} [/tex]

Step-by-step explanation:

If there CDs cost $36, each one costs $12. Hope this helps!

What’s planck length to the 8 power?

Answers

4.65609478 x 10^-279 m^8

What’s the options? :)

10. Emmilynn gets paid $975 each month. If she opens a savings account with a $100 check she
received for her birthday and deposits her pay checks each month after that, write a function for the
total amount of money in her savings account based on how many months the account has been open.
Then tell what the domain (x values) and range (y values) represent.
Function:
Domain:
Range:
11. Kevin needs to get his truck fixed. The mechanic tells Kevin the part he needs will cost $75 and
there will be a fee of $60 per hour for labor. If the total cost to fix his truck is a function of the number
of hours the mechanic has to work (labor) on the truck, write a function to represent this situation.
Then tell what the domain (x values) and range (y values) represent.
Function:
Domain:
Range:

Answers

Answer:

uh uh uh uh uh I'll try uh uh uh uh uh

simplify 4y - 8y2 + 9y - 7y2.

Answers

Answer:

D is the answer

Step-by-step explanation:

4y - 8y² + 9y - 7y² ( collect like terms)

13y - 15y²

Hope this helped!!!

Answer:

-15y^2+13y, option d

Step-by-step explanation:

Technically the term with the highest exponential value should be in the front, so that's why I wrote it like that... but d is correct

If two numbers are multiplied in any order , product will be the same. True or False

Answers

Answer:

True

Step-by-step explanation:

True same with addition

The function rule T–4, 6(x, y) could be used to describe which translation?

Answers

T–4, 6(x, y) could be used to describe a horizontal translation to the right by 4 units, and a vertical translation up by 6 units

How to describe the translation?

The rule is given as:

T–4, 6(x, y)

This can be rewritten as:

(x - 4, y + 6)

The above means that:

A horizontal translation to the right by 4 units, and a vertical translation up by 6 units

Answers

Answer:

When a linear function is expressed in different forms, its slope and y- intercept remain the same. The slope from the equation is -1, and the y intercept from the equation is 3. The slope from the table is -1, and the y intercept fron the table is -3.

Step-by-step explanation:

I did it

what is the answer to 8-5x=-37

Answers

Answer:

x=9

Step-by-step explanation:

Subtract 8 from both sides.

−5x=−37−8

Subtract 8 from −37 to get −45.

−5x=−45

Divide both sides by −5.

x= -45/-5

Divide −45 by −5 to get 9.

x=9

Answer:

Step-by-step explanation:

Step 1:

8 - 5x = - 37 Equation

Step 2:

8 = - 37 + 5x Add 5x on both sides

Step 3:

45 = 5x Add 37 on both sides

Step 4:

x = 45 ÷ 5 Divide

Answer:

x = 9

Hope This Helps :)

what is 4x +12=20 proof

Answers

4x+12=20
-12 -12
——————
4x=8
divide by 4 on both sides
x=2

what expression is equal to 6x-8/4

Answers

Answer:

12x-6x-2

Step-by-step explanation:

8/4=2

12-6=6

6x-2

Evaluate the following expression: -2|9|.
-18
-11
11
18

Answers

Answer:

-18 mat-way is good to use

Solve the inequality.

||2x−1|−2|>3

Answers

Answer:

x > 3

Step-by-step explanation:

Ralph wants to build a rectangular deck with a predefined area of 66 feet squared. One side of the deck will be 5 feet longer than the other. To find the side lengths, he first writes the equation (x)(x+5)=66 and later simplifies (x-6)(x+11)=0 it to , where x is the length of the shorter side. Which of these are the side lengths, in feet, of the rectangular deck? Select all that apply

Answers

Answer:

The shorter side is 6 ft and the longer side is 11 ft

Step-by-step explanation:

The options are not given, but we could solve and arrive at an answer

say the shorter side is x

and the longer side is x+5

we know that the area of a rectangle is given as

x*(x+5)=66

open the bracket

x^2+5x=66

x^2+5x-66=0

Find two factors of -66 whose sum equals the coefficient of the middle term, which is 5 .

the factors are 11 and -6

splitting the middle term using the two factors 11 and -6

x2 +11x - 6x - 66=0

x(x+11)-6(x+11)=0

(x-6)=0

x=6

(x+11)=0

x=-11

The shorter side is 6 ft and the longer side is 11 ft

Which of the following correctly expresses the number below in scientific notation? 0.0000899

Answers

Answer:

10^5 times 8.99

Step-by-step explanation:

Add the following: 3l(l – 4 m + 5 n) and 4l( 10 n – 3 m + 2l)

Answers

Expand the brackets and then add like terms together:
31 - 124m + 155n + 410n - 123m + 861
892 - 247m + 565n

Answer:

11L^2‒24LM+55Ln

Step-by-step explanation:

first let's take L instead of l

3L(L‒4m+5n)+4L(10n‒3m+2L)

3L^2‒12LM+15Ln+40Ln‒12Lm+8L^2

3L^2+8L^2‒12LM‒12LM+15Ln+40Ln

11L^2‒24LM+55Ln

i think it is easy to understand&i hope it helps you

7x= 5 + y write the standard form of the equation

Answers

Answer:

7 * x = 5 + y

Step-by-step explanation:

hope this helps!, you can correct me if I'm wrong.

Which of the following functions is graphed below?

Answers

Answer:

Step-by-step explanation:

A candy store owner has chocolate candies worth $2.50 per pound and sour candies worth $0.90 per pound. How much of each kind of candies should she combine to get 60 lb of mixed candies worth $1.70 per pound? (Include units with your numerical answers.)

Answers

Answer:

Weight of chocolate candies = 30lbs

Weight of sour candies = 30lbs

Step-by-step explanation:

We are told in the question that :

Chocolate candies worth $2.50 per pound

Sour candies worth $0.90 per pound. How much of each kind of candies should she combine to get 60 lb of mixed candies worth $1.70 per pound?

Let x represent the number of pounds of chocolate candies

Let 60 - x represent the number of pounds of sour candies

Hence, we have the equation

x × $2.50 + (60 - x) × $0.90 = 60 × $1.70

= 2.5x + 54 - 0.9x = 102

Collect like terms

2.5x - 0.9x = 102 - 54

= 1.6x = 48

x = 48/1.6

x = 30 lbs

x represent the number of pounds of chocolate candies,

60 - x represent the number of pounds of sour candies

= 60 - 30

= 30lbs

Weight of chocolate candies = 30lbs

Weight of sour candies = 30lbs

Therefore, she should combine 30lbs of chocolate candies and 30lbs of sour candies to get 60 lb of mixed candies worth $1.70 per pound.

Please, help me! And I will give you 5 stars and heart! :)

Answers

Answer:A dot plot

Step-by-step explanation:

box and whisker, dot plot, scatter plot

Some $1.50 per oz spice and some $2.50 per oz are mixed to produce 20 oz of a mixture worth 1.90 per oz. How many oz of each should be used

Answers

Answer:

3 ounces of the seed and 7 ounces of the dried fruit.

Step-by-step explanation:

Simplify

3(2x-3)

please answer!!

Answers

Answer:

6x - 9

Step-by-step explanation:

We can use the distributive property to solve.

3(2x - 3)

(3 * 2x) + (3 * -3)

6x - 9

Best of Luck!

3(2x-3)

Multiplying each term in the parentheses by 3

3×2x-3x-3

calculate the product

6x-3×3

multiply the number

6x-9

Help me with problem 4 please

Answers

Answer:

Step-by-step explanation:

What is the measure of angle 7?

Answers

Answer:

The measure of angle 7 is 155*.

Step-by-step explanation:

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