Mathematics Middle School

Help please I’ll give brainliest

Answers

Answer 1

Answer:

Step-by-step explanation:

Answer 2

A! Your probability is 3/6 which simplifies down to 1/2

Related Questions

need help with finding the area of the trapezoids

Answers

Answer:

560

Step-by-step explanation:

7 x 8 x 10= 560

Answer:

This is what I came up with base on my knowledge please note that I learned this in 4th grade and its been 4 years I am in 8th grade well 7th but I got moved up a grade Thank You :)

Step-by-step explanation:

7) 56*the other 3

8) 4.6*3 + the other 9.2

can someone plz help me answer this i will give brainliest due by 12:30

Answers

Answer: Yes

Step-by-step explanation:

I'm pretty sure it's correct so yes

WILL GIVE BRAINLIEST DONT SCAM ME A librarian is rearranging the bookshelves and notices that the pair of bookends on the shelf are not the same size. The librarian then notices that the bookends create similar triangles. What is the length of the diagonal, x, created by the smaller bookend? 5 in. 7.2 in. 27.2 in. 20 in.

Answers

Answer:

Think 139 in

Step-by-step explanation: You multiply all the numbers together then square root your final answer

The length of the diagonal [tex]x[/tex] created by the smaller bookend is 7.2 inches.

How to apply triangle similarity

In this question we have two pairs of books which create two similar triangles, whose formula is an application of the concept of direct proportionality:

[tex]\frac{12\,in}{10\,in} = \frac{x}{6\,in}[/tex] (1)

[tex]x = 7.2\,in[/tex]

The length of the diagonal [tex]x[/tex] created by the smaller bookend is 7.2 inches. [tex]\blacksquare[/tex]

Remark

The figure associated to the question is missing. We included a simplified representation of the figure below.

To learn more on similar triangles, we kindly invite to check this verified question: https://brainly.com/question/25882965

if you and answer any of these 7-9 that would really help!!
(pic below)

Answers

Answer:

7. 8x^2 + 3y^2

8. 9y^4 -- 8x

9. 5x^2- 2x- 3

Step-by-step explanation:

7 is 6x^2 + 3y^2
8 is 9y^4 - 8x
9 is 5x^2 - 2x - 3

The circumference of a circle is 113.04 feet. What is the circle's diameter?
Use 3.14 for .

Answers

Answer:

you would do

113.04 divided by 3.14 to get 36.

the diameter of the circle is 36 ft

Answer - 36ft.

113.04 divided by 3.14

Hope this helped❤️❤️

T-Mobile has a family plan of four lines $120 additional lines are $10 each per month. If Jason wants to spend at most $175 per month on cell phone expenses, how many additional lines can he afford?

Answers

Answer:

Jason can afford 5 more additional lines, making 9 lines total because

175-120=55

55/10=5.5 so He can not afford more than 5 more additional lines.

Step-by-step explanation:

Answer:

B.) 120+ 10x =< 175

Step-by-step explanation:

Please answer number 20

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a) Right angle
b) Obtuse angle
c) acute angle

I assume the first one is acute, the second one is obese, and the last one is a right angle.

solve: 7 - 2x = 2 (x - 4) - 1

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Answer:

Step-by-step explanation:

Evaluate the expression for the given value of x.
4x + 7 for x = 7

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-96Step-by-step explanation: i-

4(7)+7
28+7
35
So the answer is 35

Which property of equality is used to solve the equation 5n = 50?

Answers

answer:

the division property of equality

step-by-step explanation:

in order to solve for n we would have to divide

5n / 5 = 50 / 5

n = 10

Answer:

Division Property of Equality.

Step-by-step explanation:

In this case, you will use the Division Property of Equality to solve. Isolate the variable, n, by dividing 5 from both sides:

(5n)/5 = (50)/5

n = 50/5

n = 10

Create a list of 5 potential jobs that students of meteorology can obtain.

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researcher
Military and airline forces
Teaching
Storm chaser
Environmental scientist

Please answer the question below. Answer needed by tonight. Will give brainliest!

Answers

Answer:

120 cm

Step-by-step explanation:

10 x 6 = 60

60/2 = 30

30 x 4 = 120

120cm

10 x 6 is 60

60 divided by 2 is 30

30 x 4 is 120

There is a hiking trail that is 2,930 feet long. There is 1 person hiking for every 10 feet of the length of the trail. Write and solve an equation to find how many people are hiking on the trail.

Answers

Answer: question question for you to do a walk on a walk and jog on a walk on a field trip and jog the field of a walk on the walk in a walk on the field and jog jog the

Step-by-step explanation:

Answer:

293

Step-by-step explanation:

2930÷10≈293

PLSSSSSSSSSSSSSSSSSSSSSSSSS, will give free 3 brainliests if right! write the unitrate in a sentence pls

Answers

She gets 100 miles out of 2 gallons of gas so that means she gets 50 miles per gallon of gas in her hybrid car the unit rate represents Miles per gallon of her car

Answer:

a). 100 of 2 = 50

a). 150 of 3 = 50

Step-by-step explanation:

b). Gallon per miles

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Answers

Answer:

13p

Step-by-step explanation:

12p+1p

(12+1)p

13p

13p

12p+1p
12+1= 13
13 add the p onto the end which equals 13p

Help? please- Can someone help me solve for x. Like you don't need to tell me the answer just how to. It's just a little hard for me-Thank you to anyone who helps

Answers

x>2.5

Divide both sides by -5.

Two negatives make a positive.

Simplify 25/5 to 5.

Subtract 2.5 from both sides.

Simplify 5 – 2.5 to 2.5.

Then switch the sides

9514 1404 393

Answer:

undo what is done to the variable

Step-by-step explanation:

As with any "solve for" problem, it is a good idea to take a look at what is being done to the variable you're solving for.

Starting "as is"

Here, the value 2.5 is added to it, and the sum is multiplied by -5 (which we notice is negative).

In general, you want to "undo" what is done to the variable — in reverse order. What was done:

add 2.5multiply by -5

If we adopt that strategy, it means we first need to undo multiplication by -5. That is, we must either (a) multiply both sides by -1/5, or (b) divide both sides by -5. Either choice will require that the sense of the comparison be reversed, so you will have ...

( ) < (x + 2.5)

After that, you need to "undo" the addition of 2.5. That is accomplished by adding -2.5 to both sides of the equation.

Simplifying first

For many problems that have fractions and/or parentheses, it can work well to eliminate both before you start with your "undo" strategy. Here, a first step can be to simplify the inequality, eliminating parentheses. This means you will use the distributive property to multiply each term inside parentheses by the (negative) factor outside.

Having done that, you find the "what was done to the variable" list is slightly different:

multiply by -5add -12.5

As a consequence the "undo" steps are slightly different. Addition is still reversed by adding the opposite. Multiplication is still reversed by multiplying by the reciprocal, or by division (same thing).

As before, (and as always), what you do to one side of the inequality, you must also do to the other side. If multiplication or division by a negative number is involved, the comparison symbol must be reversed.

_____

About Negative Multiplication/Division

Above, we have noted that multiplication or division by a negative number requires reversal of the comparison symbol. For example, ...

starting with -1 > -2

multiplying both sides by -1 gives ...

ending with 1 < 2

When the (only) variable term has a negative coefficient, there is another strategy you can use that does not require the comparison to be reversed. You can add the opposite of that term to both sides of the inequality. For example, ...

starting with -5x < -38

we can add 5x to both sides to get ...

0 < -38 +5x . . . . . now the variable has a positive coefficient

This lets us proceed with the solution without worrying about the sense of the inequality. (Note that the variable will be "greater than" some value.)

_____

More about solving strategy

The rules that make Algebra possible are the rules of equality. If you look them up, you may find separate versions for addition, multiplication, subtraction, division. If you realize that subtraction is a form of addition, and that division is a form of multiplication, there are really only two—and those can be simplified to ONE RULE: always do the same operation on both sides of the equal sign. The same rule applies to inequalities. You will stay out of trouble if you remember and follow this rule. (There are many "shortcut" versions that go by names like "cross-multiply" and others. They are basically this rule with some steps not shown.)

When it comes to applying functions to inequalities, you need to consider carefully whether the function preserves the ordering relationship (>, ≥, <, ≤). Some functions do not, or have different behavior in different domains, so paying attention is required. Multiplication by a negative number is just the tip of the iceberg here.

Please help ASAP!!!!50 points!!!!!!!!No fake answers!!!!!!!!!!!!need ALL answers ASAP!!!!!!!!!!!!
please please please don't waste my points!!!!!!!! ONE ANSWER PER QUESTION!!!!!!!!!!!!!!!!
all questions MUST BE ANSWERED!!!!!

Answers

The fraction is: 2/3
the percentage: 60%

Find the area of the polygon.

question: The area of the polygon is
___ square meters

Answers

Answer: 634 sq meters

Step-by-step explanation:
Its alittle bit too complicated to explain.

1. 36-29 = 7
2. 18-14 = 4
3. 7 x 4 / 2 = 14
4. 14 x 7 = 98
5. 18 x 29 = 522
6. 14 + 98 + 522 = 634
So the area of the polygon is 634 sq meters (I didn't double check.)

Help please, i'm trying to get all my work done as report cards come out today!

Answers

Answer:

1. -7

Step-by-step explanation:

-3x - 5 = 16

add 5 to both sides of the equation.

-3x = 16

divide both sides by -3

x = -7

(Sorry, I don't know what 2 is!)

In the picture you can see the steps but the answer for the second one is y= -1

plzzzzzzzz help me I really need it NOW.

Answers

2. 13
3. 20
4. 28
5. 27
6. 13

Answer:

2. 13

3. 20

4. 28

5. 27

6. 19 1/2

Step-by-step explanation:

can someone help me with these questions?

Answers

Answer:

1. 2:5

2. 110 (the total degree of a triangle is 180 so it would be 40+30+x=180)

3. 37 (It's a right angle, 90 degrees so it would be 90-53=x)

1. 2:5
2. 110( the total degree of a triangle is 180 so it would be 40+30+x=180)
3. 37(it’s a right angle , 90 degrees so it would be 90-53=x

PLEASE HURRY
Triangle RST has vertices R(−6,2), S(−2,8), and T(−4,−2).
Determine the transformation of triangle RST that produces triangle R′S′T′.

R′(6,2), S′(2,8), T′(4,−2)

reflection across the x-axis
reflection across the y-axis
reflection across the line y = x
rotation clockwise 90° about the origin

Answers

Answer:6,2

Step-by-step explanation:you need to add each step and divide

Kaylee is building a rectangular enclosure with an area of 90 square yards. She
wants the length of the enclosed area to be 6 yards longer than the width, x.
To represent this, she writes the equation x2 + 6x = 90. She then completes the
square to help solve her equation for x.
Which equation is equivalent to Kaylee's equation after she completes the square?
A.
(x + 3)2 = 93
B.
(x + 3)2 = 99
C.
(x + 6)2 = 96
D.
(x + 6)2 = 126

Answers

x^2 + 6x = 90

x^2 + 6x + 9 = 90 + 9

(x + 3)(x + 3) = 99

(x + 3)^2 = 99

Answer: B

The equation x² + 6x = 90 is also written as (x + 3)² = 99. Then the correct option is B.

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

Kaylee is building a rectangular nook with an area of 90 square yards. She maintains that the length of the encased region should be 6 yards longer than the width, x. The equation is given below.

x² + 6x = 90

Add both sides 9, then we have

x² + 6x + 9 = 90 + 9

(x + 3)² = 99

The condition x² + 6x = 90 is likewise composed as (x + 3)² = 99. Then, at that point, the right choice is B.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ2

What is the measure of the missing angle in the triangle below?

The measure of the missing angle in the triangle is ? degrees. brainliest plz

Answers

Answer: 41

Step-by-step explanation: all triangles equal 180° so you add the 2 angles you know, 52+87=139. Then you take the 180 and subtract the 139 to get 41°

The answer is 41. Now make me Brainliest please thanks

please help with 6 , 9 , & 10

Answers

9514 1404 393

Answer:

6. 15/22

7. 1/12

9. 1/16

10. 0

Step-by-step explanation:

6. 10 of the 12 tiles are "not P", so the probability of a "not P" on the first draw is 10/12 = 5/6. After drawing a "not P" on the first draw, 9 of the remaining tiles are "not P". The probability of drawing one of those is 9/11. So, the joint probability of drawing two "not P" tiles is ...

(5/6)(9/11) = (5·9)/(6·11) = 15/22

7. The probability of drawing a tile worth 3 points is 3/12 = 1/4. The probability of drawing a tile worth 1 point is 4/12 = 1/3. So, the joint probability of drawing a 3-point tile, then a 1-point tile is ...

(1/4)(1/3) = 1/12

9. There are 3 of the 12 tiles worth more than 4 points. The probability of drawing one of them is 3/12 = 1/4. The probability of doing it again is also 1/4, so the probability of doing it twice is ...

(1/4)(1/4) = 1/16

10. The probability of drawing a Z is 1/12. Having drawn a Z, the probability of drawing a 10-point tile is 0/11. The joint probability of drawing a Z twice is ...

(1/12)(0/11) = 0

_____

Additional comment

We revisited problem 7 because we needed that answer for problem 9.

SAME SCENARIO - DIFFERENT QUESTION

The owner of a new coffee shop is keeping track of how much each customer spends (in dollars). A random number table was used to generate a random sample of 20 pieces of data. The dot plot below shows the twenty pieces of data.

Based on the data in the dot plot, what would you expect the mean of the sample to be? EXPLAIN YOUR REASONING.

Answers

Answer:

20=XY

Step-by-step explanation:

HELPPP MEEE!!! Here is another question I got way more coming!!!!!!

Answers

Answer:

A: tea formation 4

Step-by-step explanation:

Dilating changes the size which makes the shape not congruent

Answer:

transformation 4

Step-by-step explanation:

Give me a cold stone cake order =)
Its my birthday and I dont have anyone to celebrate it with so I figured I would celebrate it with myself! :)
Just kidding, can you help me with this IXL problem?

Answers

Answer:

j would be -7

PLEASE HELP ME I HAVE OTHER HOMEWORK TO BE FINISHED!!

Graham carves a block of wood shaped like a cube with a square pyramid on top. How much paint will Graham need to paint the toy?

Answers

Step-by-step explanation:

Pyramid

1/2 * 12 * 15

6 * 15 = 90

90 * 4 = 360cm

Cube

12 * 12 = 144

144 * 4 = 576cm

576 + 360 =

936 cm² of paint

You are painting the outside of a 36-foot fence that goes around a square playground. There are 4 equal sections. You have painted 1/4 of one section. What fraction of the job have you completed?
pls hurry

Answers

Answer:

1/16

Step-by-step explanation:

if you do Keep, Change, Flip, you get 1/16. So what you do is you lay out 1/4 divided by 4/1. You KEEP the first fraction, CHANGE the division sign into a multiplication sign, and then FLIP the 4/1 into 1/4. Then all you have to do is multiply 1 times 1, and then 4 times 4. Hope this helps :)

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