Mathematics Middle School

Triangle ABC ~ triangle DEF. Use the image to answer the question.

a triangle ABC with side AB labeled 11, side CA labeled 7.6 and side BC labeled 7.9 and a second triangle DEF with side DE labeled 2.2

Determine the measurement of EF.

EF = 1.58
EF = 1.52
EF = 1.1
EF = 5.5

Answers

Answer 1

Answer:

EF = 1.58

Step-by-step explanation:

Since DE is provided (2.2), we use that in order to find EF.

First, divide the length of AB by the length of DE.

11 ÷ 2.2 = 5

So we use 5 to figure out the measurement for EF.

BC = EF, so we divide BC by 5 to get EF.

7.9 ÷ 5 = 1.58

therefore EF = 1.58

Answer 2

Answer:

EF is equal to 1.58

Take 11 and divide it by 2.2 to get 5, then divide 7.9(BC) and 5 which is 1.58(EF)

Also I got this right on the test, hope it helps <3

Related Questions

please help
What is area of the composite shape? ___ sq. cm

Answers

Answer:

132 cm^2

Step-by-step explanation:

7x4=28

((7+19)/2)8 = 104

104+28= 132

Pretty sure, it is 298 centimeters

Which of the following is the solution set of x < 5?

A) x = {5, 4, 3, 2, 1, ... }
B) x = {5, 6, 7, 8, 9, ... }
C) x = {4, 3, 2, 1, ... }
D) x = {3, 4, 5, 6, 7, ... }

with solution pls, show the solution how did you get the answer​

Answers

The best answer from the options provided is C, because "x<5" means all the numbers less than 5 and answer C only has integers that are less than 5.

Now C isn't a perfect answer, because C leaves out all the other fractions and decimals like 4.3 and 3/4 that are also less than 5, but aren't in answer C.

But given your choices, A, B, and D are not the answer, since they all have a number included that's greater than OR equal to 5.

The correct answer is B) x = {5, 6, 7, 8, 9, ... }.

To see why, let's break down the inequality x < 5. This inequality means that x can be any number that is less than 5, but not including 5 itself. In other words, x can be any number in the open interval (-∞, 5).

The solution set for this inequality is any set of numbers that satisfies this condition. The set of numbers in option B) {5, 6, 7, 8, 9, ... } is the only set that satisfies this condition, since all of these numbers are less than 5.

Option A) {5, 4, 3, 2, 1, ... } includes 5, which is not a solution to the inequality x < 5.

Option C) {4, 3, 2, 1, ... } does not include any numbers greater than or equal to 5, so it does not satisfy the inequality x < 5.

Option D) {3, 4, 5, 6, 7, ... } includes 5, which is not a solution to the inequality x < 5.

Nick had 29 toy cars. Then he bought 16 cars from the toy store and got 30 cars for his birthday. Nick gave 9 of the toy cars to his sister and 29 to his friend Jordan. How many toy cars does Nick have left?

Answers

Answer: 37 cars

Step-by-step explanation:

29 + 16= 45

45 + 30 = 75

75 - 38 = 37

Ms. Hernandez is taking her children and their friends to the movies. She will pay $10 for her adult ticket and $7 for each child ticket. Ms. Hernandez does not want to spend more than $40. Which inequality can be used to find c, the number of child tickets Ms. Hernandez can purchase?

Answers

Answer:

The inequality can be used to find c, the number of child tickets Ms. Hernandez can purchase is option (D) 10 + 7x ≤ 40.

Step-by-step explanation:

Step 1: Let x be the number of child tickets that Ms. Hernandez can purchase.

Step 2: The cost of the adult ticket is $10, and the cost of each child ticket is $7. Therefore, the total cost T of the tickets can be expressed as:

T = 10 + 7x

Step 3: Ms. Hernandez does not want to spend more than $40. So, we can write an inequality to express this:

T ≤ 40

Substituting the expression for T, we get:

10 + 7x ≤ 40

Simplifying the inequality:

7x ≤ 30

Step 4: Dividing both sides by 7:

x ≤ 4.2857

Since we cannot purchase a fraction of a ticket, Ms. Hernandez can purchase at most 4 child tickets.

Therefore, the inequality that can be used to find c is:

7x + 10 ≤ 40 or 10 + 7x ≤ 40.

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each shelf on Sandra's bookcase is 42 1/2 inches long each book she wil place on a shelf is 3/4 inches wide what is the greatest number of books of this size can she fit on one shelf?
(the answer is 56 but I need to have the work)

Answers

Answer: yeah 56

Step-by-step explanation:

42.5 divided by .75 is 56.666666666666666666666666666667

And with this type of question, you have to round down to a whole number so, 56

Hope this helps :)

hey! 42 1/2 inches is 85/2 inches.

to find the number of books she can fit on the shelf, she has to divide the total amount of inches (85/2) by the width of each book (3/4)

dividing by a fraction is the same thing as multiplying by its reciprocal, so… 85/2 x 4/3 = 170/3

170/3 = about 56 books (rounded to the nearest whole number)

i hope this helped!! :))

If you borrow $600 for 2 years at an annual interest rate of 7%, how much will you pay altogether?

Answers

The guy who answered first was right

I am so sorry but please help and if its not too much please explain how you did it too!♡ TY!<3

Answers

Answe 56

Step-by-step explanation:

hoped that helped

Please! I have class again tomorrow and homework is due! Urgent!

Answers

In order to find perimeter add all the sides for example the green shape would be 24 inches by adding 7+7+5+5
Sorry I don’t know hope you get right

Can you please help with this? Thanks!


A
∠A and
∠
B
∠B are supplementary angles. If
m
∠
A
=
(
x
+
4
)
∘
m∠A=(x+4)
∘
and
m
∠
B
=
(
2
x
−
7
)
∘
m∠B=(2x−7)
∘
, then find the measure of
∠
A
∠A.

Answers

Answer:

Step-by-step explanation:

so its 23 cause .

supplementary means that the two angles must add up to 180 degrees.

that means we should set up the equation like this:

(x+4)+(2x-7)=180

solve by adding like terms

3x-3=180

add

3x=183

divide

x=61

we can check this answer by plugging the number back in.

(61+4)+(2(61)-7)=180

(65)+(115)=180

therefore angle A would equal 65 degrees.

Greg has 4 shirts: a white one, a black one, a red one, and a blue one. He also has two pairs of pants, one blue and one tan. What is the probability, if Greg gets dressed in the dark, that he winds up wearing the white shirt and tan pants? Show your work.

Answers

Answer:

1/8 probability or a 12.5% chance

Step-by-step explanation:

Greg has 4 choices for his shirt and 2 choices for his pants. The total number of possible outfits is then 4*2 = 8. Since Greg is equally likely to choose any one of these outfits, the probability that he chooses the white shirt and tan pants is 1/8.

pls help mee/////////

Answers

Answer:c

Step-by-step explanation:im smart

The scale on a map reads 4 cm = 1.6 m. The relationship on the map is graphed on a coordinate grid, with centimeters on the y -axis and meters on the x -axis. The rate of change is: blank blank per blank

a. 0.4
b. 2.5
c. centimeters
d. meters

Answers

Answer:

To find the rate of change, we need to determine how much the value on the y-axis changes for every unit change on the x-axis.

The scale on the map reads 4 cm = 1.6 m, which means that for every 1 meter on the x-axis, there are 2.5 centimeters on the y-axis (since 4 cm is equivalent to 1.6 m, we can divide both sides by 1.6 to get 1 cm is equivalent to 0.4 m, or 2.5 cm is equivalent to 1 m).

Therefore, the rate of change on this graph is:

2.5 centimeters per meter

Or, we can express this as:

2.5 cm/m

Step-by-step explanation:

the answer is 2.5!!!!!!!!

Kevin goes to a restaurant that offers 4 appetizer choices, 4 different meats, 6 vegetables, 4 desserts, and 7 drinks. Assuming he gets one of each, how many different meals could he order? Responses A 184 B 25 C 2688 D 672 E 504

Answers

Kevin has 4 choices of appetizers, 4 choices of meats, 6 choices of vegetables, 4 choices of desserts, and 7 choices of drinks. To find the total number of different meals he can order, we need to multiply the number of choices for each category:

4 appetizer choices × 4 meat choices × 6 vegetable choices × 4 dessert choices × 7 drink choices = 2,688

Therefore, Kevin can order 2,688 different meals. So the answer is option C.
the correct answer is 2688 because if you do 4 x 4 x 6 x 4 x 7, it’ll equal to 2,688.

What is the equation for the line of reflection? On a coordinate plane, image A B C D has points (2, 2), (7, 3), (5, 1), (4, 1). Image A prime B prime C prime D prime has points (10, 2), (5, 3), (7, 1), (8, 1). x = 6 y = 6 y = x y = 2 Mark this and return

Answers

The equation of the line of reflection should be .

Given information:

Triangle ABC has points (6, 3.7), (5.4, 2), (1, 3). Triangle A' B'C' has points (3.7, 6), (2, 5.4), (3, 1).

A'B'C' is the reflection of the triangle ABC.

It is required to find the equation of the line of reflection.

Now, from the given coordinates of triangle ABC and its reflection, it is clear that the x and y-coordinates have interchanged their values. For example, coordinate (6,3.7) has become (3.7,6).

Therefore, the equation of the line of reflection should be .

To find the equation for the line of reflection, we need to find the midpoint between each point and its corresponding point in the reflected image. Then, we can find the equation of the line that passes through each pair of midpoints.

The midpoint between (2, 2) and (10, 2) is ((2 + 10) / 2, (2 + 2) / 2), which simplifies to (6, 2). The midpoint between (7, 3) and (5, 3) is ((7 + 5) / 2, (3 + 3) / 2), which simplifies to (6, 3). The midpoint between (5, 1) and (7, 1) is ((5 + 7) / 2, (1 + 1) / 2), which simplifies to (6, 1). Finally, the midpoint between (4, 1) and (8, 1) is ((4 + 8) / 2, (1 + 1) / 2), which simplifies to (6, 1).

The line of reflection is the line that passes through each pair of midpoints. Since all four midpoints have the same x-coordinate of 6, the line of reflection is a vertical line passing through x = 6.

Therefore, the equation for the line of reflection is:

x = 6

What is area of the composite shape? ___ sq. ft

Use 3.14 for "pi" and round to the nearest hundredths place.

Answers

Answer:

236.63

Step-by-step explanation:

The area of the composite shape is
236.63 sq

please help quickly! thank u so much god bless

Answers

A C D E

Just count the units from wherever it stays to.

Answer:

A

D

C

E

Step-by-step explanation:

If you have any questions please ask me! :)

I cant figure it out I have only one more chance too

Answers

Answer: I believe it's 57

Step-by-step explanation:

I think it’s 7 because 7 is in the ones place

Find the area of the composite figure.

A) 38 square units
B) 49 square units
C) 41.7 square units
D) 34.8 square units

Answers

Answer:

The answer is C (41.7)

Step-by-step explanation:

If you have any questions please ask me! :)

Answer: C) 41.7 square units

what is -3 1/3 -2?
its for an i-ready assignment

Answers

Answer:

The answer is -5.333

fraction answer: -5 333/1000

Step-by-step explanation:

If you have any questions ask me please! :)

Answer:

-5.33333333333

Choose an expression that is equivalent to the following.
6n + 2(3 - 5n)

A. n+6
B. 16n+6
C. 6-4n
D. 11n

Answers

Answer: C. 6-4n

Step-by-step explanation:

    We will simplify the expression and see which one is equivalent.

Given:

  6n + 2(3 - 5n)

Distribute:

  6n + 6 - 10n

Subtract:

  -4n + 6

      This is the same as 6 - 4n, so our answer is C. 6-4n

Answer:

6-4n (C.)

Step-by-step explanation:

First you would do 2x3=6

2x-5n=-10n

6n+ -10n= -4n

6-4n

Mm what about this one? Help please ♡☆ ty ty!♡

Answers

Answer:

54

Step-by-step explanation:

[tex] < 2 = 180 - 109 \\ = 71 \\ < 1 = 180 - 71 - 55 \\ = 54[/tex]

The measure of ∠1 is 54 degrees by angle sum property

We have to find measure of angle 2 before finding angle 1 ∠1

∠2 + 109 = 180

Subtract 109 from both sides

∠2 = 180-109

∠2 =71 degrees

From angle sum property theorem we know that in any triangle the sum of  angles is 180 degrees

∠1 + 71 +55 = 180

∠1 + 126 =180

Subtract 126 from both sides

∠1 = 180-126

One hundred eighty minus one hundred twenty six is equal to fifty four degrees

∠1 = 54 degrees

Hence, the measure of ∠1 is 54 degrees by angle sum property

To learn more on Triangles click:

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#SPJ1

i hate geometry....so very much

Answers

Answer: 128 cm

Step-by-step explanation: 96+24+8=128cm

hopefully the last question!!

Answers

Answer:

the answer is 16.23

tryingtogetverified u have helped me sm thank u btw.

Answers

Answer:5sweaters

Step-by-step explanation:

if u add 40 twice for each sheep wich there are five sheeps that makes 200 then take away 40 till u get zero and counts how many 40s you took away

Find the approximate radius of a circle with a circumference of 51.81 millimeters. Use 3.14 for π. Round to the nearest hundredth if necessary.

Answers

Answer: 16.5

Step-by-step explanation:

51.81/3.14=16.5

Simple :)

Hope it helps!

Answer:16.5
51.81/3.14= 16.5

pls help me 1st awner gets brainlyest

Answers

if I understood the problem correctly I think a is 35, and b is 25

The owner of a tea shop is making a blend of two teas. Tea A costs $5.40 per pound. Tea B costs $6.80 per pound. The owner wants to make 8 pounds of the blend and wants to sell it for $5.75 per pound. How much of each tea should he use?

Answers

Answer:
12 pounds of tea-1 and 8 pounds of tea-2 should be used.
Step-by-step explanation:
Let the mass of the tea-1 be x and tea-2 be y.
Total mass of mixture tea owner wants to make = 20
pounds
x+y = 20 ... [1]
Cost of 1 pound of tea-1 = $6.50
Cost of 1 pound of tea-2 = $4.00
Cost of the 1 pounds mixture = $5.50
₴ × $6.50 + y × $4.00 = 20 × $5.50
6.5× + 4.00y = 110... [2]
Solving equation [1] and [2] by substitution method, putting value of × from [1] in [2].
X=20 - y
6.5(20 - y) + 4.00y = 110
130 - 6.50y + 4.00y = 110
-2.5 y=-20
y = 8
×=20-y = 20-8 = 12
12 pounds of tea-1 and 8 pounds of tea-2 should be used.

I REALLY HOPE THIS HELPS

please help......................

Answers

Answer: 6.6 in^2

Step-by-step explanation:

2.2 x 3 = 6.6

You can get the answer by multiplying width times length giving you 6.6 inches

Help please I don’t know this

Answers

×Answer: 400

Step-by-step explanation: [tex]20×20=400[/tex]

It is 400





Because 20x20=400

Which situation is best represented by the following equation

68.50x + 127.95 = 675.95

Answers

Answer: Option B

Step-by-step explanation:

Considering Option A

we can infer that the office manager paid a total of $675.95

the cost of the software package is $68.50

while an employee is paid $127.95 every hour she works on the website

So, the equation for this situation goes like this: 68.50 + 127.95x = 675.95

Coming to Option B

we can infer that the office manager paid a total of $675.95

the cost of one monitor is $127.95  

while the hard drives are for $68.50 each

So, the equation for this situation goes like this: 68.50x + 127.95 = 675.95

Hence Option B is the correct answer

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