Mathematics Middle School

Figure A maps to figure B with a scale factor of 1 1/2.
What is the value of x?

Figure A Maps To Figure B With A Scale Factor Of 1 1/2.What Is The Value Of X?

Answers

Answer 1

Answer:

x = 6/2 = 3

Step-by-step explanation:

This is a dilation. A dilation is a change in size, whether it is an enlargement or reduction.

The scale factor is how much the enlargement is.

The side of Figure A is 2.

So we must multiply 2 ⋅ 1 1/2.

2 ⋅ 1 1/2 (3/2) = 6/2

6/2 is equal to 3.

Therefore, the value of x in Figure B is 3.

Related Questions

-4(x - 4) = -44
pls show steps

Answers

Answer:

15

Step-by-step explanation:

-4(x - 4) = -44

expand

-4*x + -4*-4 =-44

-4x + 16 = -44

-4x = -44 -16

-4x = -60

x=-60/-4

x=15

The volume of a large aquarium is 90 ft cubed . It is 2 2/5 wide and 3 1/3 high . What is the length of the aquarium?

Answers

Answer:

11 2/8

Step-by-step explanation:

l×b×h=90

l×12/5×10/3=90

l×8=90

l=90/8

l=11 2/8

Find the area of the figure to the nearest tenth.

Answers

6x6=36
(π3^2)/2=14.1
36-14.1=21.9

Find the perimeter and the area of the polygon with the given vertices.

T (2,7), U (2,9), V (5,9), W (5,7)
The perimeter is __ units.

The area is ___ square units.

Answers

Answer:

Step-by-step explanation:

TU , UV , VW, TW are the sides

As points T and U have same x-coordinate, length of TU will be given by the difference of y-coordinate

TU = 9 - 7 = 2 units

As points U and V have same y-coordinate, length of UV will be given by the difference of x-coordinate

UV = 5 - 2 = 3 units

As points V and W have same x-coordinate, length of VW will be given by the difference of y-coordinate

VW = 9 -7 = 2 units

As points W and T have same y-coordinate, length of WT will be given by the difference of x-coordinate

WT = 5 - 2 = 3 units

TU = VW = 2 units

UV = WT = 3 units

So, TUVW is a rectangle

Area = length *width = 3* 2 = 6 square units

Perimeter = 3 + 2 + 3 + 2 = 10 units

8 - 5b = -7 ?? whats the b

Answers

Answer:

b=3

Step-by-step explanation:

Isolate the b:

8-5b=-7Subtract 8, -5b=-15Divide by -5, b=3

Check your answer:

8-5(3)=-78-15=-7-7=-7
b=3
you subtract the 8 from the left then subtract it from the right giving you -5b=-15 then divide the -5 by both sides

Mr. O’Reilly has a cup of coffee at a diner. The cup of coffee costs $1.25, and he leaves a 60% tip. How much does he leave for a tip?

please someone help. dont send in fake answers or they will be reported.

Answers

Answer:

He leaves $0.75

Step-by-step explanation:

10%=0.125

0.125x6= 0.75 = 60%

$0.75 is the answer for this equation

What is the number of the parking space covered by the car?


(Im giving brainlisit)

Answers

Answer:

The number covered by the car is 87.

Step-by-step explanation:

All you have to do is turn the picture upside down, revealing a bunch of numbers in a row.

Answer:

87 but since its upside down L8

Step-by-step explanation:

The answer is L8. All of the numbers, when read upside down, are the number 86 - 91

So basically 87 but upside down it would be L8.

Noah scored 20 points in a game. Mai's score was 30 points. The mean score for Noah, Mai, and Clare was 40 points. What was Clare's score? Show your work.
I need this answer ASAP.

Answers

Answer:

Clare's score was 70.

Step-by-step explanation:

N = 20

M = 30

C = ?

Mean = (Sum of all values)/3

40 = (20 + 30 + c)/3

40 = (50 + c)/3

50 + c = 120

c = 70

Answer:

70

Step-by-step explanation:

Let's think about this backwards. The mean of all 3 points is 40, so that is our answer. We instead of dividing would multiply. We would multiply by 3 'cause that's how many numbers there are. We would get 120. Finally, we would                                                                                                    

                                                                                      3

have to subtract. We will do this problem:

20 + 30 = 50

120 - 50 = 70

So, we get our answer of 70!

__

Let's check our work!

20 + 30 + 70 = 120 = 40

         3               3

__

Let's explain our work propproperly:

First, I took the mean and multiplied it by three because we have Noah, Mai, and Clare. Next, I added 20 and 30 to get an answer of 70 which is the answer. In conclusion, Clare's points are 70 points.

To pass her test, Tori needs to answer at least 65% of the questions correct. If there were 60
questions and she got 42 correct, did she pass? All work MUST be shown to justify your
answer.

Answers

1) change 65% to a decimal = .65

2) .65 • 60 = 37.2 questions need to be right

3) since she got 42 correct, that is greater than 37.2, so she passed.

OR

1) 42/60 = 0.7

2) 0.7 to a percent = 70%

3) since she got a 70% on the test, she passed.

Step-by-step explanation:

To obtain score of 80% on entire exam means the student have to answer

(80/100)×80 = 64 correct answers

Student have already answered 75% of the first 60 questions correctly meaning

(75/100)×60=45 correct answers from first 60 questions

Remaining correct answers s/he have to answer

64-45=19

So from remaining 20 questions s/he have to answer 19 correct questions that is

20 × (x/100) = 19

x = 19 ×(100/20)

x = 95%

helpppppppp plzzzzzzzzzzz i dont get it

Answers

Add the 2 values togetehr

Answer:

P=2(l+w)

sooo

Perimeter is 2/7+2. which is 2.2

Step-by-step explanation:

Im not completely sure, but hope this helps XP

Find the distance between (-3, 2) and (-7, 0). Round to the nearest tenth if needed.
A.6
B.9
C.20.3
D.4.5

Answers

D. 4.5 hope this helps
4.5✋ but it could also be 4.5 which is d

I need this NOW WHO EVER ANSWERS CORRECTLY RIGHT NOW I WILL MARK BRAINLIEST BUT IF YOU SPAM I WILL REPORT YOU! Find the value of x.

Answers

Answer:

[tex]114^{o}[/tex]

Step-by-step explanation:

Angles in a triangle add up to 180 so 180 - 34 - 32 = 114

Please answer, I will give you Brainliest!!
James correctly answered 85% of the 60 problems on his math test. How many questions did James answer correctly?

Answers

Answer:

52

Step-by-step explanation:

Answer and working out attached below. Hope it helps

PLEASE HELP

Select all the equations equal to 5x+30x-15x

A.5(x+6x-3x)
B.(5+30-15) * x
C.x(5+30x-15x)
D.5x(1+6-3)
E.5(x+30x-15x)

Answers

A, B, and D      I hope this helps :)

A B And D are correct ones

A plumber has a 2-meter length of pipe. He needs to cut it into sections that are 10 centimeters long. How many sections will he be able to cut? (I will give brainliest if you answer first)

Answers

Answer:

20 pieces.

Step-by-step explanation:

2 meters is equivalent to 200 centimeters and if you divide 200 by 10 you get 20 pieces.

Pls Help Me.
Use the table to solve the equation −6x>18
Table:
x: -5 -4 -3 -2 -1
-6x: ? ? ? ? ?
The solution of the inequality is: __________

Answers

Answer:

x>-3 because that's how it goes

X>-3 is the any sorry if wrong

plzzzzzzzzzzzzz help

Answers

(2m-7)(2m-7)
4m^2 - 14m - 14m + 49
4m^2 - 28m + 49

Answer: 4m²-28m+49

Step-by-step explanation:

(2m-7)² can be written as (2m-7)(2m-7).

You would have to multiply it out like this:

2m times 2m=4m² (2x2=4 and mxm=m²)

2m times -7=-14m (2x-7=-14 then put a m on it)

-7 times 2m=-14m

-7 times -7=49

The equation would then look like this:

4m²-14m-14m+49

Then you would have to collect like terms. Like terms are terms with the same variables and powers. It will then look like this:

4m²-28m+49

Hope this helps :)

Translate the sentence into an inequality.
Twice c is at most 19.

Answers

Answer:

2c < 19

Step-by-step explanation:

Its not giving you an exact value of what c is so when you see "at most 19" you would use less than or equal to sign ( < ) but if instead said it "at least 19" you would use a greater than or equal to sign ( > ).

A sphere has a radius of 5 feet. Find the volume of the sphere. Leave your answer in terms of pie. Then use 3.14 for pie and round the volume to the nearest 10th. Volume in terms of pie=? Volume in using 3.14=?

Answers

The Volume is 523.6
Solution: V=4
3πr3=4
3·π·53≈523.59878 and 5 or more raise the score so the 9 makes the 5 into 6 and drop all of the other numbers

The solution is, The Volume is 523.6, of the sphere has a radius of 5 feet.

What is volume?

In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.

here, we have,

Given,

r = 5 ft

pi = 3.14

Formula

the volume of sphere is:

V = 4/3 * 3.14 * r^3

Solution

V = 4/3  * 3.14 * 5^3

V = 4/3 * 3.14 * 125

V ≈ 523.59878

V ≈ 523.6 m^3

as, we get,

V≈523.59878

and 5 or more raise the score so the 9 makes the 5 into 6 and drop all of the other numbers.

Hence, The solution is, The Volume is 523.6, of the sphere has a radius of 5 feet.

To learn more on volume click :

brainly.com/question/1578538

#SPJ2

Please give explain for why is that sign​

Answers

Answer:

because the sign is symmetrically inconnected to the ricoures of the trapezoid so the sign moves on its own

Because the sign is not equal to the sides of the trapezoid so it would move

please help will mark brainliest (dont use links)

Answers

Answer:

A

Step-by-step explanation:

vuffyf thjcjvfyxfbhhjh

A...........................

PLZZZ help with this its pretty simple!

Answers

Answer:

It should be D, [tex]x^4 - 2x^3 + 7x^2 -12x - 4[/tex]

Step-by-step explanation:

Since, the equation given in the question is the factored form of the equation D. It can be solved using FOIL (First Outside Inside Last):

x * x³ = [tex]x^{4[/tex]

x * 7x = 7x²

x * 2 = 2x

-2 * x³ = -2x³

-2 * 7x = -14x

-2 * 2 = -4

This all would add up to ⇒ [tex]x^{4}[/tex] - 2x³ + 7x² + (-14x + 2x) -4

Simplifying the parenthesis further would give the option D as the answer.

need help last question and stumped T-T
my brain isn't working and it's due in 10 minutes
30 points and will mark brainliest

Answers

Answer:

[tex]x=25, y=15, z=16[/tex]

Step-by-step explanation:

Honey to flour

4:5

[tex]\frac{20}{x} =\frac{4}{5}[/tex]

[tex]4x=100[/tex]

[tex]x=25[/tex]

[tex]\frac{12}{y} =\frac{4}{5}[/tex]

[tex]4y=60[/tex]

[tex]y=15[/tex]

[tex]\frac{z}{20} =\frac{4}{5}[/tex]

[tex]5z=80[/tex]

[tex]z=16[/tex]

plzzzzzzzzzzzzz help!!!

Answers

it is not a perfect square trinomial.
Explanation:
Perfect square trinomials are of the form:
(
a
+
b
)
2
=
a
2
+
2
a
b
+
b
2
then:
x
2
+
10
x
+
100
is not a perfect square trinomial:
a
=
x
,
b
=
10
,
2
a
b
=
20
x

!! IMAGE ATTACHED !!

Angle RST is a right angle. What is the measure of angle UST?

A. 27°
B. 36°
C. 63°
D. 81°

Answers

Right angle = 90 degree
Both smaller angles must add to 90

90 - 27 = 63
The angle UST is 63 degrees

Answer:

as angle RST , 90 - 27

angle UST 63 degree

option c

pls Mark as brainliest

Evaluate.

10–6
10–4
=

Answers

The Answer is:

1011000

A plumber has a 2-meter length of pipe. He needs to cut it into sections that are 10 centimeters long. How many sections will he be able to cut? (I will give brainliest if you answer first)

Answers

Answer:

20 - 10 cm sections can be cut from a pipe of original length 2 m

Step-by-step explanation:

Convert 2 meters to cm:  

2 m       100 cm

------ * ---------------- = 200 cm

  1             1 m

Next, divide this 200 cm total length by (10 cm/section) to determine the number of sections:

200 cm

--------------------- = 20 sections

10 cm/section

20 - 10 cm sections can be cut from a pipe of original length 2 m

I REALLY NEED HELP FAST! Name the marked angle in 2 different ways.

Answers

Answer:

Step-by-step explanation:

Answer:

<opn and <npo

A number cube is rolled. What is the probability that a number greater than 4 will be rolled?

1/6
2/3
1/3
5/6

Answers

Answer:

1/3

Step-by-step explanation:

1/3!

six numbers on a die, only 5 and 6 are greater than 4 so that’s two numbers out of the six total that are greater than 4. 2/6 simplifies to 1/3!

A dress originally cost $120. If it is now on sale for $100, what is the percent of the decrease in price? (I WILL GIVE BRAINLEST IF YOU ANSWER THIS)

Answers

16.67%
120 x .1667= 20.004
120-20.00= 100
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