Please help with the following:
1. For what value(s) of "r" is 3r-6=7+3r
A) all real numbers
B)all negative numbers
C)0
D) no values of r

2. What is the range of f(x)=[[x-1]]?
A)all reals
B)all integers
C)all real > or = 1
D)all integers > or = 1

Answers

Answer 1
1) 0 2) D I'm pretty sure the first one is 0 and the second one is D. if wrong I apologize but I think this is the correct answer

Related Questions

Matthew has 18 sets of baseball cards.Each set has 12 cards. About how many baseball cards does Matthew has in all ?

Answers

Well if each set had 12 cards. So 18*12 = 216 :D
216

if you know how to multiply you do 18 times 12 then you get 216 

The short sides of a rectangle are 2 inches. The long sides of the same rectangle are three less than an unknown number of inches.

If the area of the rectangle is 22 square inches, what is the value of the unknown number?
_____ inches

Answers

I hope this helps you

Answer:

a=14 hope this helps

what is three hundred thousand, five thousand sixty-three written in standard form

Answers

300,563 this is the answer.

The number three hundred thousand, five thousand sixty-three written in standard form is; 3.00563 × 10⁵.

According to the question;

We are required to write three hundred thousand, five thousand sixty-three in standard form.

The number three hundred thousand, five thousand sixty-three written in digits is; 300,563.

When written in standard form as follows is; 3.00563 × 10⁵

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Alisha asked 120 students what kind of pet they like the most. Exactly 45% of the students said they liked dogs best. What was the total number of students who said they liked dogs best?

Answers

The answer would be 54 students liked dogs the best.

Mrs Valdez bought 6 boxes of roses. Each box had 24 roses. She divided all the roses into nine equal bunches. How many were in each bunch.

Answers

Sixteen roses were in each box
16 roses in each box

What is an equation of a line, in point-slope form, that passes through (1, −7) and has a slope of −23 ?

A. y−7=2/3(x−1)

B. y+7=2/3(x+1)

C. y+7=−2/3(x−1)

D. y−7=−2/3(x+1)

Answers

a is the best answer

Answer:

y + 7 = -2/3(x-1)

Step-by-step explanation:

i took the test :)

what is the percent change of 150 to 175?

Answers

175-150=25,,(25/175)*100==14.29

At Raging River Sports, polyester-fill sleeping bags sell for $79. Down-fill sleeping bags sell for $149. in one week the store sold 14 sleeping bags for $1456. How many of each type of bag were sold

Answers

A.
x+y=14
79x+149y=1456

B.
-79(x+y=14)
79x+149y=1456

-79x-79y=-1106
79x+149y=1456
70y=350
y=350/70
y=5

79x+149(5)=1456
79x+745=1456
79x=1456-745
79x=711
x=711/79
x=9

C.
x=-y+14
79(-y+14)+149y=1456
-79y+1106+149y=1456
-79y+149y=1456-1106
70y=350
y=350/70
y=5

x=-y+14
x=-5+14
x=9

D.
9 polyester-fill
5 down-fill

The store sold 9 polyester-fill sleeping bags and 5 down-fill sleeping bags.

We need to find the number of polyester-fill and down-fill sleeping bags sold.

Let's denote the number of polyester-fill sleeping bags as x and the number of down-fill sleeping bags as y. The given equations based on the problem statement are:

x + y = 14 (the total number of sleeping bags sold)

79x + 149y = 1456 (the total sales from sleeping bags)

We can solve this system of equations using either the substitution method or the elimination method. By multiplying the first equation by 79, we have:

79x + 79y = 1106

Subtracting this new equation from the second equation gives us:

149y - 79y = 1456 - 1106

70y = 350

y = 5

Substituting y = 5 into the first equation:

x + 5 = 14

x = 9

300 girls were asked to name their favorite sport.12 girls said they like bowling. What is the percentage of girls who like bowling?

Answers

I hope this helps you
Final answer:

To calculate the percentage of girls who like bowling, you would divide the number of girls who like bowling (12) by the total number of girls (300) and then multiply by 100. This yields a result of 4%.

Explanation:

To find the percentage of girls who mentioned bowling as their favorite sport, you would use the following formula:

Number of favorites / Total number * 100

In this instance, the calculation would be:

12 girls / 300 girls * 100

By doing this calculation, you get 4% which indicates that 4% of girls mentioned bowling as their favorite sport.

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Start at 5 create a pattern that multiplies each number by 3 and subtract 2 stop when you have 5 numbers

Answers

5=5
17=(5•3)+2
53=(17•3)+2
161=(53•3)+2
485=(161•3)+2
1,457=(485•3)+2

Mark bought a notebook for $1.45 and some pencils for $0.42 each. If the total cost was $6.91, how many pencils did he buy?

A.12
B.13
C.14
D.15

Answers

B - 13

Okay, we know that Mark brought 1 notebook and the totally is 6.91 while one pencil costs $0.42.

x= number of pencils he brought.
we know the price of 1 notebook + the cost of pencils times the numbers of pencils he brought = total cost.

So the equation will be:

1.45 + 0.42x = 6.91  subtract 1.45 on both sides.
0.42x = 5.46   Then we solve for x by dividing both sides by 0.42
x= 13

So the number of pencils he brought is 13.

1. 6.91 - 1.45 = 5.46
You subtract the notebook from the total cost

2. 5.46 / 0.42 = 13
You divide the cost of a pencil from the left over amount of money to see how many pencils Mark bought

3. Mark bought 13 pencils

Three friends each have some ribbon Carol has 42 inches of ribbon title has 2.5 feet of ribbon and Baxter has 1.5 yards of ribbon Express the total length of ribbon the three friends have in inches feet and yards

Answers

Title has 2.5 feet, 30inches,0.33 yards
Bax has 1.5yards,54inches,4.5feet
and carol has 42 inches 1.1667 yr and 3.5 feet of ribbonthere total is 126 inches 3.50 yards and 10.5 feet of ribbon

The length of one side of a square city block is 462 meters what is the perimeter

Answers

For perimeter, you add up the length of all the sides. In a square all sides are the same length.
462+462+462+462
1848

The perimeter of square is 1848 m.

What is Perimeter of Square?

All sides add up to the perimeter.

Square perimeter equals the sum of its four sides' lengths.

= side +side +side +side.

= 4 x sides.

Square's perimeter is therefore equal to 4s units.

Given:

Side of Square = 462 m

Now, Perimeter of Square = 4 x side

Perimeter of Square = 4 x 462

Perimeter of Square = 1848 m

Hence, the perimeter of square is 1848 m.

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James's garden has a length of 12 1/4 feet and a width of 9 2/3 feet. What length of fencing will he need to surround his garden? Please show how you got the answer.

Answers

James will need 43 5/6 feet of fencing to surround his garden.

What is the length of fencing needed to surround the garden?

Given the parameter:

Length of the garden = 12 1/4 feet

Width of the garden = 9 2/3 feet

Perimeter =?

To determine the length of fencing James will need to surround his garden, we can use the formula for the perimeter of a rectangle:

Perimeter = 2( length + width )

Plug in the values and solve for the perimeter:

Perimeter = 2( 12 1/4 + 9 2/3)

Perimeter = 2( 49/4 + 29/3)

Perimeter = 2( 263/12 )

Perimeter =  263/6

Perimeter = 43 5/6 feet

Therefore, the needed length of fencing is 43 5/6 feet.

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The first five terms of an arithmetic sequence are shown below: 20, 17, 14, 11, 8, . . . Let n represent the term number and f(n) the term in the sequence.

Answers

The rule of an arithmetic sequence:

[tex]a_n=a_1+(n-1)d[/tex]

[tex]a_1[/tex] - first term

[tex]d[/tex] - a difference  [tex]d=a_n-a_{n-1}[/tex]

We have:

[tex]a_1=20;\ a_2=17;\ a_3=14;\ a_4=11;\ a_5=8;\ ...[/tex]

[tex]a_1=20;\ d=a_2-a_1\to d=17-20=-3[/tex]

substitute:

[tex]a_n=20+(n-1)\cdot(-3)=20-3n+3=-3n+23[/tex]

Answer: f(n) = -3n + 23

Answer:

f(n) = -3n + 23

Step-by-step explanation:

5 1/3• 3/8 please help me with this plzzzzz

Answers

Well i think the answer is 2
16/3 x 3/8 then you would times the 16 by 3 is 48 3x8 is 24 so its 48/24 that can be simplified by 4

" Find the percent of change. Round to nearest whole percent if necessary. State whether the percent of change is an increase or decrease".

Answers

I hope this helps you
The answer is 1.5% because if you divide 2.75 to 1.8 the answer will be 1.52777778. So if you round it to the nearest hundredths you'll get 1.5.

How to use the distributive property to factor each polynomial?
Problem:
5z squared + 10z

Answers

we can factor out the greatest common factor 5z to get

5z^2 + 10z = 5z*z+5z*2 = 5z(z+2)

So,

5z^2 + 10z = 5z(z+2)

I have 13.75 gallons of paint. I want to use 2/5 of paint to paint the living room. How many gallons of paint will I use.

Answers

13.75 gallons x.4 (2/5) =5.5

The student will use 5.5 gallons of paint to paint the living room by multiplying 13.75 gallons by 2/5.

The student has 13.75 gallons of paint and wishes to use 2/5 of it to paint the living room. To calculate the amount of paint used, we multiply the total amount of paint by the fraction representing the portion they wish to use.

The calculation is as follows:

Amount of paint used = Total paint × Fraction of paint used

Amount of paint used = 13.75 gallons × 2/5

Amount of paint used = 5.5 gallons

Therefore, the student will use 5.5 gallons of paint to paint the living room.

The price of an item has increased 15% since last year. However, a person can buy the item for a 25% employee discount. The employee pays $172.50. What was the price last year?

Answers

100% - 25%(discount) = 75%( employee's amount)

$172.5 ÷ 0.75(75%) = $230

Increased 15% since last year...

$230 x 0.15(15%) = $34.5

$230 - $34.5 = $195.5

Answer: Last year's price is $195.5

Answer:

The employee pays $172.50 and he got 25% employee discount.


If the cost is $100, he pays $(100 - 25) = $75.


So, employee pays =  

100

------

75

.


172.50


= $230.00.



Again, price was increased by 15% last year. So whose cost is $100


is sold by $(100+15) = $115.



When sell price is $115, then cost price is $100. Then,


when sell price is $230, then cost price is  

100

------

115



230


= $200.


Step-by-step explanation:


Keith plans on eating 1 1/4 cups of tuna per day for five days. How much tuna does he need? Is 4 cans enough? Canned tuna/meat: 4 cans = 5 & 3/5 cups.

Answers

He has too much for 4 cans. He has 5 3/5 cups.

what is 304 divided by 2 minus 26 plus 17 times 16

Answers

put into the calculator exactly as You wrote it is 398

Final answer:

The order of operations is followed to solve the expression 304 divided by 2 minus 26 plus 17 times 16, resulting in a final answer of 398.

Explanation:

The student is asking to solve the mathematical expression 304 divided by 2 minus 26 plus 17 times 16.

To solve this, we need to follow the order of operations, often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right).

We first divide 304 by 2, then subtract 26, and finally add the result of multiplying 17 by 16.

Divide 304 by 2 to get 152.Subtract 26 from 152 to get 126.Multiply 17 by 16 to get 272.Add 126 and 272 to get the final result of 398.

Calculation:

(304 / 2) - 26 + (17 * 16)

= (152 -26) + 272

= 126 + 272

= 398

Use number patterns and powers of ten to complete the chart. Need help
Worth 23 points

Answers

The first one is 29 because heres a strategy look at how many 0s are there and if multiplying then move the decimal point over 1 becaise there is only 1 0 in 10 example; 3.2 × 10 = 32

Victor wants to buy fertilizer for his yard. The yard is 35 feet by 55 feet. The direction on the bag of fertilizer say that one bag will cover 1,250 square feet. How many bags of fertilizer should Victor buy to be sure that he covers the entire yard?

Answers

Victor will need to buy 2 bags of fertilizer.

Victor's Backyard - 35 x 55 = 1,925
1 Bag of fertilizer - 1,250
2 Bags of fertilizer - 2,500
Yes, 2 bags will need to be purchased

A pizza shop uses 7 pieces of pepperoni on a small pizza. How many pieces of pepperoni will they use if they make 1,398 small pizzas?

Answers

it will be 9786 because you will need to multiply 1,398x7 and it will be 9786

3x+2y=-4

I need help solving this. Pease help

Answers

Steps to solve:
3x+2y=-4
3x=-4-2y
x=- \frac{4}{3}- \frac{2}{3}y [/tex]

a taxi fare y can be determined by the equation y=0.50x+3.50, where x is the number of miles traveled

Answers

Final answer:

The taxi fare is calculated with a linear equation that uses the number of miles traveled. The cost per mile is the slope (0.50) and the initial fare is the y-intercept (3.50). By substituting the number of miles into the equation, one can compute the total taxi fare.

Explanation:

The student's question involves understanding the equation of a linear function which describes a taxi fare. Specifically, the taxi fare y can be determined by the equation y=0.50x+3.50, where x is the number of miles traveled. The number 0.50 represents the slope of the line, which is the cost per mile, and the number 3.50 is the y-intercept, which is the initial fare before any miles are traveled.

Applying this knowledge to a practical example, if a person travels 5 miles, their taxi fare would be calculated by substituting x with 5 in the equation: y = 0.50(5) + 3.50, which equals 5.50 as the total fare.

any large backyard there are 4 times as many shrubs trees altogether there are 40 trees and shrubs how many trees are in the yard how many shrubs

Answers

If there is 4 times as many shrubs than trees, we need to divide 40 by 4 to find the answer.

40 ÷ 4= 10

There are 10 trees 
There are 10 trees in one yard. 40/4 = 10.

what is 4.4 tons rounded to the nearest ton

Answers

The answer is 4 tons
4.4 rounded is 4 tons

can someone please help!

Answers

I believe its 126 square feet.
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