Three students sit in the first row. In the second row, 3 students sit behind each of those students, and so on. Write an expression with exponents to show how many students sit in the third row? How many total students are seated?

Please help, I don't understand this. You get 65 points!

Answers

Answer 1

Answer:

15

Step-by-step explanation:

Dont need an explanation really, but if there are 5 rows, with 3 each in them, all you need to do is 3x5.

15.


Related Questions

Help needed. Will mark brainliest. Please help:c

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given that:

Cost of owning and operating a printer :

Purchase Cost = $100

Printing per per page = $0.05

Thus, owning and operating cost :

Purchase cost + (Printing per page * number of pages)

Number of pages = p

100 + 0.05p

Service cost :

Amount per page = 0.25

Total revenue = cost per page * number of pages

Total revenue from service =. 0.25p

The equation :

100 + 0.05p = 0.25p ; is the owning and operating cost = total revenue

It gives the equation to calculate the number of pages at which total revenue equals owning and operating cost.

100 + 0.05p = 0.25p

100 =0.25p - 0.05p

100 = 0.20p

p = 100/0.2

p = 500

When number of pages equals 500; the owning and operating cost is equal to the revenue made.

In the expression 10 - b²a, the co-efficient of ‘a’ is ?

Answers

Answer:

-b²

Step-by-step explanation:

a's coefficient is -b² because that is what a is being multiplied by.

Help! Find the measure of each angle indicated

Answers

Answer:

40 degrees

Step-by-step explanation:

Answer should be 40. Vertical angles dictate that it should be 36. Then if you find the full like with the 76, the other part is 104. Add 104 and 36, which gets you 140. A triangle is 180, so you subtract 140 from 180 and get 40.

if 1 ad was 30 seconds and it gave me 10 gold how much gold will i have in 10 hours

Answers

Answer:

you would have 12000 gold

Step-by-step explanation:

Almost sooo close guys just 5 more left sorry if it’s taking long

Answers

Answer:

As a decimal its 6.34, If you round up then its 6.35

As a fraction its 400/63

As a mixed number its  6 22/63

Please help ASAP :) thank you

Answers

Answer:

B

Step-by-step explanation:

since from -2 it starts to be a straight line and ends at 1

I will give brainless soo please help Question 1 (5 points)
Saved
(04.01 LC)
Which unit rate is the lowest price per ounce? (5 points)
Choice A: 22 ounces of potato chips for $3.49
Choice B: 40 ounces of potato chips for $4.79
1) Choice A
2) Choice B
3) The unit rates are equal.
4) The unit rates cannot be determined.

Answers

Answer:

Estoy muy triste por tener que regalar a mi perro.

Find the value of c that makes the expression a perfect square trinomial. x^2+10x+c A. 20 B. 25 C. 50 D. 100

Answers

Answer:

The answer is B.

Step-by-step explanation:

In the options, 25 is perfect square of 5 and 100 is square of 10.

So when 5 + 5, you will get 10 which is the 2nd term of the expression.

Which equation could be a true statement by substituting n with a number greater than 10? A 10=n + 1/2. B 10=2n. C 10= n - 0.5. D 10 = 2 ( divided) n

Answers

Answer:

I can't read it.

Step-by-step explanation:


Baumholder High School decides to build a statue of Tim Kelly in the front parking lot. Use the information below to determine the unknown height of the statue.

Answers

Answer:

zxczxcz

Step-by-step explanation:

zxczxczxc

the bottom of a ladder is placed 4 feet from the side of a building. the top of the ladder must be at least 13 feet off the ground what is the shortest ladder that will do the job




A : 10ft

B : 12ft

C : 14ft

D : 16ft

Answers

B correct me if I’m wrong
it’s b. i had this question for one of my tests.

OKKKKKKKK THIS ON TOO PLS ANSWER

Answers

Answer:

the answer should be shape

Part A


How much material does he need to cover the one rectangular side of the tent with the rip? Justify your answer using equations/formulas, models, and/or words to explain your mathematical reasoning.







PLS HELPP PLSSSSSSSSSSs


Part B


If Marcus’s dad wanted to re-cover the whole tent including the bottom, how much material would he need? Justify your answer using equations/formulas, models, and/or words to explain your mathematical reasoning.

Answers

3x2x3+2=
Then times the answer u get by 3

Answer:

A) How much material does he need to cover the one rectangular side of the tent with the rip? Justify your answer using equations/formulas, models, and/or words to explain your mathematical reasoning.  

Answer: If David’s dad wanted to cover the rectangular side of the tent, he would need to multiply the sides together. Using the formula A = l x w, I can solve for 6 and 9. 9 x 6 = 54, so 54 = 6 x 9.  

B) If David’s dad wanted to re-cover the whole tent including the bottom, how much material would he need?  Justify your answer using equations/formulas, models, and/or words to explain your mathematical reasoning.

Answer: If he wanted to re-cover the whole tent, he would need the product of the rectangular side, the triangular side, and the bottom side. Using A = l x w, I can solve for each side of the tent, For the rectangular side you multiply six by nine, then multiply two by the product. 6 x 9 = 54 x 2 = 108. For the triangular side, I need to multiply six times seven, 6 x 7 = 42. For the bottom, I need to multiply seven times nine, 7 x 9 = 63. Finally, I need to add them all up. 108 + 42 + 63 = 213 ft².                    

 

C) What is the volume of the tent?  Justify your answer using equations/formulas, models, and/or words to explain your mathematical reasoning. (You need to find the area of one of the triangular bases, and then you can take that measurement and multiply it with the height of the entire prism.) V=Bh, where B = area of one of the triangular bases

Answer: I need to find the volume of the tent, so I need to find the formula which is V = B x h. The base is 63, because I needed to find the area of one of the triangular bases, so I multiplied 7 x 9 = 63. The height is 6, so I need to multiply 63 x 6. When I multiply 63 x 6, I get the product of 378, so the volume of the tent is 378 ft³.

Please help this is due in afew hours

Answers

Answer:

We can write the equation for the first part of this problem as:

16

+

4

x

=

10

+

14

We can now solve for  

4

x

:

16

+

16

+

4

x

=

16

+

24

0

+

4

x

=

8

4

x

=

8

To find the value of  

8

x

we can multiply each side of this equation by  

2

:

2

×

4

x

=

2

×

8

8

x

=

16

Step-by-step explanation:

mr martin has 36 calculators in a box. The ratio of the ordinary calculators to the scientific 5:1. How many of each calculator does he have

Answers

Answer:

180 calculators.

Step-by-step explanation:

She has 180 calculators because if you were to un - simplify 5:1 you would get 180:5 and you would use the first number. So, you have 180 calculators.

Sorry if this is wrong I tried my best.

I NEED HELP PLEASE !!!!!

Answers

Answer:

75°

Step-by-step explanation:

Find the difference between the angles.

112 - 37 = 75

What is the difference between (-15) and (+20)?

Answers

Answer:

-35

Step-by-step explanation:

-15 -20

= -35

But if you want the positive difference, it would be 35

Answer:

Step-by-step explanation:

-15-(+20)=-15-20=-35

An architect is making a model of a building she is designing. The kitchen will be 8 feet by 14 feet. The scale she is
using for the model is 3 inches = 2 feet.

Answers

Answer:

12 inches by 21 inches

Step-by-step

Let's start with the 8 feet

for every 2 feet add three inches you get a total of 12 inches

same for the 14 feet, you get 21 inches

Find measure angle B

Answers

Answer: 4

Step-by-step explanation:

I need help, I am not familiar with this.

Answers

Answer:

the first did it correct

Step-by-step explanation:

Explain why the measure of angle 2 is greater than the measure of angle 3

Answers

Answer: number 2 is a obtuse angle and number 3 is a right angle

What is the values of 6.6.6.6

Answers

Step-by-step explanation:

I just need points sorry

Answer:

1296

Step-by-step explanation:

6 times 6 = 36 and 36 times 6=216 and 216 times 6 = 1296

What is 1 1/7 x 3/5 pleaseeeeeeeee help

Answers

Answer:

24/35 :)

Step-by-step explanation:

What are like terms? (Pls give an example of one too)

Answers

Answer:

Step-by-step explanation:

Like terms are terms that have the same variable raised to the same exponent. For example, 7z and 2z are like terms because they have the same variable, z, and are raised to the same exponent, 1. 5x² and 10x are not though, because the first one is raised to a power of 2, whereas the latter is only raised to a power of 1. And numbers with different variables, like 7x and 3z, are not either.

Answer: like terms are terms that have the same variables and powers

For example: 3x and 4x are like terms because they both are x and only x. 12xy and 4y would not be like terms because they don’t share the same variable. if it was 5x ² and 8x ² they would be like terms. i hope this helps!

Find 80% of 14,236.
Enter the correct answer in the box.

Answers

Answer:

Step-by-step explanation:

11388.8

Hope it helped you.

Please mark me brainliest.

Answer:

11388.8

Step-by-step explanation:

plz brainliestt

[tex]2\frac{1}{2} divided \frac{1}{4}[/tex]

Answers

Answer:

10

Step-by-step explanation:

[tex]2\frac{1}{2}[/tex] ÷[tex]\frac{1}{4}[/tex]

change the mixed fraction to proper fraction

(2 * 2)+1   / 2

= 5/2

5/2 * 4/1

=20/2

10

Parlings vary directly with mots. If 7.5 mots are worth 37.5 parlings, how many parlings will get you 13 mots?​

Answers

Answer:

65 parlings

Step-by-step explanation:

Use ratios:

7.5 mots / 37.5 parlings = 13 mots / x parlingsx = 13*37.5/7.5x = 65

OPEN ENDED QUESTION
What is (-3)2?

Answers

Answer:

-6(?)

Step-by-step explanation:

-3 times 2 is -6. But why is this open ended?

Answer:

-6

Step-by-step explanation:

three twos

add the negative

Abakery can make 100 pies in 2 hours.
How many hours will it take, if they
need to do 350 pies?

Answers

100/2 = 50 pies per hour
350/50 = 7 hours

Answer:

7 hours

Step-by-step explanation:

The bakery could bake 100/2 = 50 pies per hour.

To make 350 pies, the bakery requires 350/50 = 7 hours.

The answer is therefore 7 hours.

There are 20 different colored marbles in a bag and 4 of them are yellow. What
percentage of the marbles are yellow?

Answers

Answer:

20%

Step-by-step explanation:

4/20 * 100=20

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