Use algebra tiles to find the difference. Let one yellow tile equal +1 and one red tile equal –1. 12 – (–9)

Answers

Answer 1

Answer:

21

Step-by-step explanation:

12 - (-9)

Open The bracket :

Recall: - * - = +

Hence,

12 + 9 = 21


Related Questions

Who ever get it right I will give Brainly thx u

Answers

It be 12 cause from the smaller one 2*4 would = to 8 and 5*4 also = to 20 so 3*4 = to 12.

The students in Mr. Tran’s class want to raise $905.94 for new basketball equipment for the school. So far, they have earned a total of $732.78. How much money do they still need to earn?


A.
$173.16

B.
$233.24

C.
$636.84

D.
$1,638.72
if its right I give you something

Answers

Answer:

A 173.16

Step-by-step explanation:

905.94 - 732.78 = 17316

Donte ordered the plans shown to build a skateboard ramp. Each unit represents one foot. He wants to keep the same slope of the ramp and extend the base of the triangle three feet. How tall will the ramp be

Answers

Answer:

3 feet

Step-by-step explanation:

The slope of line shows the steepness of that line. It is the ratio of the change in vertical distance to the change in horizontal distance.

The slope of a line passing through points [tex](x_1,y_1)\ and\ (x_2,y_2)[/tex] on the coordinate plane is:

[tex]slope=\frac{change\ in\ y}{change\ in\ x}=\frac{y_2-y_1}{x_2-x_1}[/tex]

From the diagram of the ramp, we can see that:

The ramp passes through the point (0,0) and (6, 2). Therefore the slope is:

[tex]slope=\frac{2-0}{6-0}=\frac{1}{3}[/tex]

The base is at 6 ft tall, if we extend the base by 3 units, the base would be 9 ft (6 + 3). The new height would be:

height = slope * base = (1/3) * 9 = 3 feet

If the base is extended by 3 feet, the tall would be 3 feet tall.

Altogether, 360 schoolchildren sit down for their exams.
Five percent of them have one pen. Of the remaining 95
percent, half of them have two pens and the other half
have none. How many pens do the children have between
all of them?
HEL MEEEE

Answers

Answer:

A esta así no puedo xd ._.

Total Pens, owned by all students between all of them = 360

Percentage wise calculation of Pens  

Total children = 360
Students having one pen = 95% of 360 = 18

Remaining 95% = 360 - 18 = 342

Half of remaining ie 342 = 171, have two pens

Other half of remaining ie 171 have no pens

Total pens, all children have between all of them = Summation (number of students x number of pens)

= (18 x 1) + (171 x 2) + (171 x 0)

= 18 + 342

= 360

To learn more about Percentage, refer https://brainly.com/question/26080842?referrer=searchResults

10.
Write a rule for the linear function in the graph.

A. y = 4/5x + 2

B. y = -5x - 2

C. y = 5/4x - 2

D. y = -4/5x + 2

Answers

Answer:

D. y = -4/5x + 2

Step-by-step explanation:

Graph the line using the slope and y-intercept, or two points.

Slope:  

4

5

y-intercept:  

(

0

,

2

)

x

y

0

2

5

2

0

Help me out?!?! tysmmmm

Answers

Answer:

1 is isoscele

2 is scalene

3 is equalateral

4 is scalene

list the 3 square number that end with the digit 9​

Answers

Answer:

Answer is 9,49,169

Step-by-step explanation:

I hope it's helpful!

Have a nice day!

Some one answer this thanks

Answers

Answer:

1,2,5 equal 32

Step-by-step explanation:

Answer:

(2³×4)+(11-11)5

4²×2

2^5

Step-by-step explanation:

(2³÷4)+(11-11)5

=(8×4)+0

=32

4²×2

=16×2

=32

2^5

=2×2×2×2×2

=4×4×2

=16×2

=32

Plzzz solve for x
X/3=5/4​

Answers

Answer: x=3.75 or 15/4

Step-by-step explanation:

Multiply both sides by 3

3(x) / 3 = 5x3/4

x= 15/4 or 3.75

Answer:

exact form:15/4

Step-by-step explanation:

decimal form:3.75

mixed number: 3 3/4

just in case you need any different forms :)

x*4/4=3*5/4 divide both sides of equation by 4

cancel 4 with 4=x

multiply 3 and 5 =15/4

Which sentence can represent the inequality 3.5 x greater-than-or-equal-to 7?
A The sum of 3.5 and a number is greater than 7.
B The sum of 3.5 and a number is greater than or equal to 7.
C The product of 3.5 and a number is greater than 7.
D The product of 3.5 and a number is greater than or equal to 7.

Answers

Answer:

c

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

hope it helps

Can anyone help please!!!

Answers

Answer:

6x8x16x10

Step-by-step explanation:

n the diagram, the measure of angle 9 is 85°.

4 lines intersect to form 16 angles. The angles created, clockwise from top left are 1, 2, 3, 4; 5, 6, 7, 8; 9, 10, 11, 12; 13, 14, 15, 16.

Which angle must also measure 85°?
Angle2
Angle5
Angle11
Angle12

Answers

Answer:

The real answer is angle 5

Step-by-step explanation:

The angle 11 must measure the angle 85. The correct option is C.

What are lines and angles?

An infinitely long row of evenly spaced dots that extends in both directions makes up a line. Its length is the only dimension it has. An illustration of a line is a horizontal mark made on a piece of paper. A figure made by two rays that intersect at the same endpoint is referred to as an angle.

Given that in the diagram, the measure of angle 9 is 85°. 4 lines intersect to form 16 angles. The angles created, clockwise from the top left are 1, 2, 3, 4; 5, 6, 7, 8; 9, 10, 11, 12; 13, 14, 15, 16.

The measure of angle 9 is equal to the measure of angle 11. it means that angle 9 and angle 11 are equal to 85 degrees. The image is attached with the answer below. Shows the angle 9 and angle 11 are vertically opposite angles.

To know more about lines and angles follow

https://brainly.com/question/25770607

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Paisley invests money in an account paying a simple interest of 8.9% per year. If she invests $80 and no money will be added or removed from the investment, how much will she have in one year, in dollars and cents?​

Answers

it will be removed

Step-by-step explanation:

Look at the pattern below.
3, 6, 9, 12, ...

Which number sentence can be used to determine n, the 9th number in the pattern?
A.
n = 3 + 9
B.
n = 3 ÷ 9
C.
n = 12 + 9
D.
n = 3 × 9

Answers

C
Because 9 is the 3rd number. You are trying to figure out the pattern. If you divide 9 by 3 you get three. The pattern is going up by 3

if you answer correctly I will give you 5 stars a thank you AND brainliest

Answers

Answer:

the answer is an acute triangle

Step-by-step explanation:

it is an acute triangle because all angles are less than 90° but all the angles added together are equal to 180°

Answer:

It is a scalene triangle.

Select the correct answer. Which equation describes the line graphed above? A. y=-4x-5 B. y=-1/5x-4 C. y=-5x-4 D. y=-4x-1/5

Answers

Answer:

Option B

Step-by-step explanation:

Answer: B.

Step-by-step explanation: Plato

I am trying to find the measure of angle KRD angle KRD: 5r+42 angle: DRB: 4r+66 I don't really understand this

Answers

Based off what you have I can't solve it

A farmer planted 1890 plants in a field in rows each having 63 plants. A certain type of worm destroyed 21 plants in each row. How many plants were not destroyed by the worms?​

Answers

Answer:

1260 plants remaining

Step-by-step explanation:

63-21=42    (number of plants not destroyed)

1890/63=30 rows of plants

30x42=1260 plants remaining

Part A

In "The Case for Shelter Animals," what does the author explain about the cost of becoming a pet owner?


Adoption costs more money than buying a pet.

Pet stores are more expensive than breeders.

It is more expensive to buy a pet than it is to adopt.

Cats are less expensive than dogs.
Question 2
Part B

Which evidence from the text best supports the answer to Part A?


"So those who buy from pet stores and breeders can expect to pay those fees on top of already-high purchase costs."

"The guide states that adopting a dog or a cat from a shelter usually costs between $50 and $500."

"Meanwhile, an animal from a pet store typically costs at least $1,000. Breeders are even more expensive."

"One reason that adopting pets from shelters is the logical choice is that shelter animals are less expensive than those bought from pet stores or breeders."

Answers

Answer:

part a, c part b, d

Step-by-step explanation: i just took the test for k12

Statement 1 is incorrect.

Statement 2 is incorrect.

Statement 3 is correct.

Statement 4 is incorrect.

What is the adoption cost?

Adoption cost in the given problem is the money spent in maintenance, feeding, and other expenses in order to adopt a pet.

"Adoption costs more money than buying a pet" is an incorrect statement because if we extract the conclusion combinedly from statements 2 and 3, it is clear that adoption cost is in the range of $50 and $500 in the case of a shelter animal while an animal from a pet store typically costs at least $1,000.

"Pet stores are more expensive than breeders", this is an incorrect statement because in the third paragraph it is mentioned that "an animal from a pet store typically costs at least $1,000. Breeders are even more expensive."

"It is more expensive to buy a pet than it is to adopt" is a correct statement because in the fourth paragraph it is mentioned that "adopting pets from shelters is the logical choice because shelter animals are less expensive than those bought from pet stores or breeders."

"Cats are more expensive than dogs" is an incorrect statement because in the second paragraph it s mentioned, "adopting a dog or a cat from a shelter usually costs between $50 and $500." There has not been discussed anything about the individual adoption costs for each.

Therefore, Statement 1 is incorrect.

Statement 2 is incorrect.

Statement 3 is correct.

Statement 4 is incorrect.

To get more about statements and inherences based problems visit:

https://brainly.in/question/6705979

PLEASE HELP!!!!!!!!!!

Answers

Answer:

a = 30

b = 15

c = 3

d = 30

e = 10

f = 20

Step-by-step explanation:

60 deg and a + 30 are alt int <S and congruent

a + 30 = 60

a = 30

a + 30 and a + 2b are corresponding angles and congruent

a + 2b = a + 30

2b = 30

b = 15

a + 2b and 5b - 5c are vertical angles and congruent

5b - 5c = a + 2b

5(15) - 5c = 30 + 2(15)

75 - 5c = 30 + 30

75 - 5c = 60

-5c = -15

c = 3

a + 2b and 10c + d are corresponding angles and congruent

10c + d = a + 2b

10(3) + d = 30 + 2(15)

d + 30 = 60

d = 30

5b - 5c and 2d + 6e are supplementary and add to 180

5b - 5c + 2d + 6e = 180

5(15) - 5(3) + 2(30) + 6e = 180

75 - 15 + 60 + 6e = 180

6e + 120 = 180

6e = 60

e = 10

2d + 6e and 4f + 4e are alt int angles and congruent.

4f + 4e = 2d + 6e

4f + 4(10) + 2(30) + 6(10)

4f + 40 = 60 + 60

4f + 40 = 120

4f = 80

f = 20

Ander makes a scale drawing of a tower. He uses scale of ' 1 cm represents 5 m. The tower in real life is 125 m high. How high is the tower on the scale drawing?

Answers

Answer:

25 cm

Step-by-step explanation:

125/5 = 25

hope this helped?

33 1/3 % of what number is21?

Answers

Answer:

33 1/3% of 21 is 63.64$ or rounded to the nearest whole number it is 64%

Step-by-step explanation:

I just solved

In the figure below, m1 =x and m2= x-8. Which statement could be used to prove that x =49?

Answers

Answer:

C.                          m∠1 +m∠2 = 90

Step-by-step explanation:

Find the area of the semicircle.​

Answers

Answer:

39.25 centimeters squared is the area of the semicircle

Jaden is building a fence around his yard. He wants to know how much fencing he needs. His yard is shaped like a rectangle that is 96 feet long and
33 feet wide.
How many feet of fencing does Jaden need to buy? Enter the answer in the box.
feet

Answers

Answer:

258 ft

Step-by-step explanation:

area of the rectangle =96+33×2=258 ft

hope it helps you to

please mark me as brainlist

FIND A AND B I WILL AWARD BRAINLIEST

Answers

Answer:

a = 7.4

b = 9.6

Step-by-step explanation:

set up a proportion to find 'b':

XN / NY = MN / NO

8/b = 13/(b+6)

cross-multiply:

13b = 8(b+6)

13b = 8b + 48

5b = 48

b = 9.6

set up a proportion to find 'a':

XN / XY = MN / MO

8/a = 13/12

cross-multiply:

13a = 96

a ≈ 7.4

Name the segment parallel to the given segment for #2

Answers

Answer:

YZ is parallel to RT

RS is parallel to XZ

XY is parallel to TS

Step-by-step explanation:

The answer is self-explanatory if you look at the picture and the segments listed as parallel - running side by side.  Hope this helps and all the answers are right.   Just checked the score on the test and these were right.

The parallel line segment will be  YZ || RT, RS || XZ, and XY || TS.

What is the triangle?

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180 °.

In math, equal lines can be characterized as two lines in the very plane that are at equivalent separation from one another and never meet.

The length of a line portion can be estimated either in metric units like millimeters, and centimeters, or in standard units like feet or inches.

The line segment YZ is parallel to RT.

The line segment RS is parallel to XZ.

The line segment XY is parallel to TS.

The parallel line segment will be  YZ || RT, RS || XZ, and XY || TS.

More about the triangle link is given below.

https://brainly.com/question/25813512

#SPJ5

There are 27 boys and 38 girls in the Bounders athletics club.
a. write the ratio of boys to girls in the form 1:n

Answers

Answer:

27:38 no more simplfying

Step-by-step explanation:

During each of the past three months, Tyler grew
by the following amounts: 1/8in., 3/16in., and 1/4in.
What is Tyler's total amount of growth over these
three months?
Answer with supporting work:

Answers

first you have to make all the fractions have a common denominator to add them so since 3/16 is the largest denominator you have to convert the others to have the denominator of 16. 1/8 = 2/16. 1/4 = 4/16. so if you add the numerators that’s 3 + 2 + 4 = 9. so the answer would be 9/16, and this cannot be simplified so it is your final answer:)

Convert the following decimal to a fraction.

Answers

Answer: 7.15

Step-by-step explanation:

143

20

=7 and 3 over 207

3

20

=7.15

Answer:

7 12/10000

Step-by-step explanation:

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