Mathematics Middle School

Using the key, which model is equivalent to the expression 3(x + 1 )
A. W
B. X
C. Y
D. Z

Using The Key, Which Model Is Equivalent To The Expression 3(x + 1 ) A. W B. X C. Y D. Z

Answers

Answer 1

Answer:

Step-by-step explanation:

X. 3 of x and 3 of 1

Answer 2
It would be 3 rectangles and 3 little boxes or x as you put it B. X

Related Questions

Please help me this is due at 2:30

Answers

Answer:

Step-by-step explanation:

The fourth on who this helps


Option 2 Explanation: I just did it a few ago and this needs to be 20 words

How many mg of a metal containing 62 percent nickel must be combined with 4 mg of pure nickel to form an alloy containing 78 percent nickel? Which of the following equations could be used to solve this?

Answers

Answer:

3.29 milligrams of a metal containing 62 percent nickel must be combined with 4 mg of pure nickel to form an alloy containing 78 percent nickel.

Step-by-step explanation:

To determine how many mg of a metal containing 62 percent nickel must be combined with 4 mg of pure nickel to form an alloy containing 78 percent nickel, the following calculations must be performed:

50 + 0.62X = 78

0.62X = 78 - 50

0.62X = 28

X = 28 / 0.62

X = 45.16

100 - 45.16 = 54.84

54.84 = 4

45.16 = X

45.16 x 4 / 54.84 = X

180.64 / 54.84 = X

3.29 = X

Therefore, 3.29 milligrams of a metal containing 62 percent nickel must be combined with 4 mg of pure nickel to form an alloy containing 78 percent nickel.

Answer:

C

Step-by-step explanation:

a(0.62)+4(1.00)/a+4+78/100

What is the surface area of the rectangular pain represented by the net below?

Answers

Answer:

I think it is 68cm

Step-by-step explanation:

I WILL GIVE BRAINLIEST!!!!

Answers

Answer: 112in^2

Step-by-step explanation:

area of rectangle is

10 x 10  = 100 in ^2

then area of the triangle

h x b / 2 = 12 in^2

so 100 + 12 = 112 in^2

X=1/23.6 I hope that works I really need to get to the brainliest

answer both of them.

Answers

Answer:

k is constant of proportionality

Monday: k = 7.5

Tuesday: k = 2

Step-by-step explanation:

The equation for proportionality is y = kx

Take the first line of the table, plug it in and solve for k. Do that with at least 1 other row to be sure k is the same.

15 = (k)(2)

k = 7.5

——————

Same thing for this day. x is the horizontal, y is the vertical.

16 = (k)(8)

please help will mark brainliest! (no links)

Answers

Answer:

as the drive's age increses the insurences goes down

Step-by-step explanation:

Carla's library account showed that she owed $4.00 in late fees. She made a payment of $7.00. She then lost a library book and was assessed a $12.00 fine. If Carla then makes a payment of $20, what is her balance after the payment?

Answers

Answer:

$9

Step-by-step explanation:

ok so this is what she owes- **i'm 'separating' them to make it easier**

$4 and $12 so let's add those together-

4+12=$16 so she owes 16 dollars in fines and late fees

and let's remember that she paid $7 for her late fee and assuming that she gets her $3 back she has $3 so far then for the 12 dollar fine she pays 20 dollars, and we're assuming that she gets back $6

she should have $9 left

good luck :)

**please let me know if this was incorrect/ not what you were looking for or both**

have a nice day!

what is the distance between -1 1/3 and -4 2/5 on the number line

Answers

-3.07 is the difference/distance between them

I NEED HELP ASAP PLEASE HELP ME!! NO LINKS OR I WILL REPORT

Answers

Answer:

27

Step-by-step explanation:

5(6)-6/2

Please find the angles

Answers

Answer:

<1 = 50

<2 = 40

<3 = 90

<4 = 90

<5 = 40

<6 = 50

<7 = 130

Step-by-step explanation:

<5 + <6 = 90

40 + <6 = 90

<6 = 50

<5 = <2 because of vertical angles

<2 = 40

<6 = <1 because of vertical angles

<1 = 50

<7 = <4 + <5

<7 = 90 + 40

<7 = 130

Answer:

Solution given:

<4=90°[vertically opposite angle]

<2=<5=40°[vertically opposite angle]

<3=90°[right angle]

again

<1+<2=90°[right angle]

<1=90°-40°=50°

<1=50°

again

<5=40°[given]

<6=<1=50°[vertically opposite angle]

<6=50°

again

<7=<4+<5=90°+40°=130°

I need an right answer ASAP

Answers

The mean for Serena’s time is 8 hours.

You add 6+11+10+8+5= 40

40/5 = 8

hope this helps <3
the mean is 8 to serena’s data set

please help simplify this!

Answers

Answer:

Step-by-step explanation:

[tex]\frac{16}{x^{12}}[/tex].

We get this by distributing the 4 into each term. 2^4 is 16 and (x^-3)^4 is x^-12 which is equal to 1/x^12

Answer:

16/x^12

Step-by-step explanation:

What is the surface area WWWIll mark brainllest

Answers

The answer is 62 in^2 because the smaller rectangles that we see is 2x3 and there are 2 of those, so we now have 12 inches^2 but, that’s only part of it, now we have the 2x5s which there are also 2 of those, so that’s 20 inches^2 and then lastly we have the 3x5s which once again we have 2 of which gives us 30 inches^2, so if we add all of those areas together, we get 62 in^2

what is the absolute value of negative 75? ∣−75∣ =?

Answers

the absolute value is positive 75.

Answer:

the answer is -5625

Step-by-step explanation:

Find the value of x - this is circle segments.


Answers

Answer:

x = 12

Step-by-step explanation:

Given a tangent and a secant from an external point to the circle, then

The square of the tangent is equal to the product of the external part of the secant and the entire secant, that is

x² = 8(8 + 10) = 8 × 18 = 144 ( take the square root of both sides )

x = [tex]\sqrt{144}[/tex] = 12

The answer should be x=12!

What is the length of road that each of the rollers would cover in one revolution? The volume of each roller is 3 m3 and the length across the front of each roller is 1.8 m.

Answers

Answer:

example, such as you could cover 3 miles in distance 1 a a quantity that has both a magnitude/size speed limits on the roads and more junctions in 3 velocities for each section: A = 200 m / 50 s =  front stops suddenly.  gravitational potential and back as the roller  3 a mass = 1000 m3 × 1000 kg/m3 = 1 × 106 kg.

Step-by-step explanation:

Find the CIRCUMFERENCE of a circle with a RADIUS of 13mm. Use 3.14 for the value of pi.

Answers

Answer:

Circumference = 81.64

Step-by-step explanation:

The formula for finding circumference is C = pi(d). Since you don't have the diameter, but you do have the radius (which is half of the diameter), you will multiply 13 by 2, or 13 x 2. 13 x 2 = 26. So, the diameter is 26.

Fill in what you know: C = 3.14(26)

Now, all you have to do is multiply 3.14 and 26, which equals 81.64.

Hope this helps! :)

For finding circumference you want to double the radius first to get a diameter. 13mm*2= 26mm so the diameter is 26 now we need to multiply it by 3.14 (the first 3 digits of pi). 26mm*3.14= 81.64mm Hope this helped!!

Btw if you ever get answers saying to go to a link or hosting page for the asnwer DO NOT I MEAN DO NOT click or copy and paste them. They are links used by hackers to get your ip address. Instead just report the response or answer.

Can someone help me please

Answers

Ithe diameter would be about 5
D=2 r=2x5=10
Diameter = 10

Help olspslspslpsslsplspslspslspslspsls

Answers

Answer: it's C

Step-by-step explanation:

Answer:

C.

Step-by-step explanation:

The reason why is because the speed is at 2m/s

Every single second the speed goes by 2m/s

Hope that helped :)

Please give me BRAINLIEST and THANKS lol <(￣︶￣)>

If the simple interest on a principal amount of $6000 for 7 years is $2,520, then what is the interest rate as a percent?

Answers

Answer:

6%

Step-by-step explanation:

first multiply $6000 by 7 years then divide 2520 by 42000 to get 0.06

6% because interest= principal amount x rate x time / 100

So 2520=6000xRx7 / 100 = 6%

Amy volunteers at an animal shelter. She worked 10 hours in March, 14 hours in April, 18 hours in May, and 22 hours in June.

If the pattern continues, how many hours will she work in December?

Answers

Answer:

46 hours

Step-by-step explanation:

the pattern is for the hours to increase by 4.

so,july=26

august=30

september=34

october=38

november=42

december=46

hope this helps

plz can i get brainliest:)

She works 46 hourssss

<-- 25 points No Trolls please

Answers

Answer:

15-24-38

Step-by-step explanation:

pls help i will give brainliest

Answers

Answer:

10.5

Step-by-step explanation:

10.5 is the answer, you are welcome

Help me! and how to get the answer!!

Answers

Answer:

you had to multiply i think

Step-by-step explanation:

Multiply I’m pretty sure

A barn floor scale drawing measures 5 cm by 7 cm. The scale for the actual barn is 2cm : 10 ft. What is the area of the barn? (WRITE THE NUMBER, ONLY)

Answers

Answer:

20

Step-by-step explanation:

Answer:

The answer is 875

Step-by-step explanation:

SO EASY- 2cm is equal to 10ft, so that means 5ft is equal to 1cm.

5*5=25

7*7=35

35*25=x=875

Can someone answer this its just boxplots :)))

Answers

Answer:   50%

Explanation:

The boxplot, aka box-and-whisker plot, is a visual way to represent summary data. Each piece of the boxplot visually tells us one of the five items of a five number summary, which are:

Min = smallest valueQ1 = first quartileMedian = middle most valueQ3 = third quartileMax = largest value

The median is the vertical line inside the box of the boxplot. The diagram shows that the median is 25. Exactly half of the distribution is below the median, and the other half is above the median. So that means that 50% of the cars get at least 25 mpg.

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DO NOT SEND ME PDFS OR LINKS WIL REPORT ANSWER CORRECTLY FOR BRAINLIEST
Which graph is misleading? Explain your answer with at least three complete sentences.

Answers

Answer:

7665

Step-by-step explanation:

bfdf

I don’t understand there’s no picture of a graph. Sorry

what is 4+4=??????????????????????/

Answers

Answer:

8

Step-by-step explanation:

Identify the relation that is also a function.

A.
{(5, 6), (4, 5), (5, 8), (4, 0)}

B.
{(3, −1), (3, 1), (3, 0), (0, 2)}

C.
{(−2, 1), (−1, 2), (1, 4), (−3, −2)}

D.
{(6, 4), (6, −4), (10, 5), (10, −5)}

Answers

C is the correct answer because there are no repeating X terms

Read the question and type your response in the box provided. Your response will be saved automatically.
The Jackson family is driving from Boston to New York for a summer vacation trip. So far, they have driven 84 miles which is 40% of the total miles of their trip. How many miles is the Jackson’s trip from Boston to New York?

Explain how you solved this problem in the box below. Include a description of your strategy and your answer in your explanation.

Answers

Answer:

84 is .4 of the trip

40% times 2.5 is 100% (40+40+20)

so, multiple 84 by 2.5 and that's the answer

84 * 2.5= 210

Answer:

84 is .4 of the trip

40% times 2.5 is 100% (40+40+20)

so, multiple 84 by 2.5 and that's the answer

84 * 2.5= 210

Step-by-step explanation:

sorry for copy write dont report me

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