Mathematics High School

A child building a tower with Blocks uses 15 for the bottom row. Each row has 2 fewer blocks than the previous row. What formula would you use to find the number of blocks in the 5th row?
A)blocks in 5th row =15+(15-1)-2
B)blocks in 5th row=15+(5-1)(-2)
C)blocks in 5th row=15+(5+1)(-2)
D)blocks in 5th row=5+(15-1)(-2)

Answers

Answer 1

Answer:

B)blocks in 5th row=15+(5-1)(-2)

Step-by-step explanation:

We are given that

Number of block in bottom row=15

Each row has 2 fewer blocks than the previous row

We have to find the formula would you use to find the number of blocks in the 5th row.

Number of blocks in second row=15-2=[tex]15+1(-2)[/tex]

Number of blocks in third row=15-2-2=[tex]15+2(-2)[/tex]

Number of blocks in 4th row=[tex]15-2-2-2=15+3(-2)[/tex]

Number of blocks in 5th row=[tex]15-2-2-2-2=15+4(-2)[/tex]

Therefore, number of block in 5th row

[tex]15+(5-1)(-2)[/tex]

This is required formula to find the number of blocks in the 5th row

Hence, option B is true.

B)blocks in 5th row=15+(5-1)(-2)

Related Questions

27/2 divided by 9 what is the answer

Answers

Answer:

1.5

Step-by-step explanation:

Which of the following rational functions is graphed below?

Answers

Answer:

Lets start by looking at the y and x asymptotesX=1 and x=5 Hence we need to look for (x-1) and (x-5)Hence A is your answer

Simplify each expression by using the distributive property and combining like terms.
3 ● (2x - 4) - 4x

Answers

Answer:

2x - 12

Step-by-step explanation:

Hello!

So, let's simplify using the distributive property.

Let's look at 3(2x - 4). You want to multiply 3 by every term inside the parentheses.

3*2x = 6x

3*-4= - 12

So now our expression looks like this:

(6x - 12) - 4x

Now we combine like terms. Our only like terms are 6x and -4x.

6x - 4x = 2x. So, our simplified expression is:

2x - 12.

What is 3/7 divided by 1/3

Answers

Answer: 9/7

Step-by-step explanation:

If the slope of a line is 4 and you start at the origin (0, 0), name two points that
would be on that line? *

Answers

Answer: (4,1) and (8,2)

Step-by-step explanation: i did rise over run and it was fairly easy since the slope is a basic line that does have fractions or decimals

first to get it right gets brainliest

What kind of room has no doors or windows

Answers

a room with no doors or windows is a mushroom

The rate at which a plant grows is constant. At the 3rd week it is 12 inches tall and at the 5th week it is 20 inches tall. If this
information is plotted on a coordinate plane, what is the y-coordinate of the the point (1. y)?

A - 1

B- 2

C- 4

D- 9

Answers

Answer:

Step-by-step explanation:

3 (week), 12 (inches)

(3,12) = (1,4)

(x,y)

x=1

y=4

Ans- y=4

2^2×3^2/2^-2×3^-1
plzz give answer

Answers

Answer:

Step-by-step explanation:

The computation is shown below:

= 2^2×3^2 ÷ 2^-2×3^-1

= 4 × 9 ÷ 2^-2 × 3^-1

= 48

Hence, the given equation shows the answer of 48

So the same would be considered and relevant too

Therefore the 48 is the answer

which expression is equivalent to 15 x^3 z^5/ 3 x^7 z^-5
A 12/x^10
B 5x^4
C 5(x/z)^10
D 5(z/x)^10
E 12(z/x)^10

Answers

Answer:

15 x^3 z^5/ 3x^7 z^-5

15/3×x^(3-7)×z^(5+5)

5×x^-4×z^10

5z^10/x^4

Giving points out help me

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

can someone help please?

Answers

Answer:

a. 150 degrees

b. 210 degrees

c. 12π

d. 5π

e. 7π

f. 36π

g. (I'm assuming the shaded region is CAB) 15π

The measure of an angle is seven times the measure of its supplementary angle. What is the measure of each angle?

Answers

Step-by-step explanation:

7x= 180-x

7x+x= 180

8x= 180

x= 22.5

the angle is 22.5

its supplementary angle is 157.5

Please help will mark as brainliest

Answers

Answer:

Step-by-step explanation:

because when you flip it you get the other side ABC

Please help will brainlist

Answers

Answer:

It should be A

Step-by-step explanation:

(I'm not 100% sure, but two of the sides are congruent so I would just choose 3!)

Luisa sells stuffed animals. She sells a stuffed elephant for $34.90, and the sales tax is 9% of the sale price. About how much is the sales tax on the elephant?
$3.15
$4.90
$0.32
$4.95

Answers

Answer:

OH DADDY FASTER

Step-by-step explanation:

OY PAPI MAS RAPIDO

Consider the geometric sequence:
4, 8, 16, 32, ...
If n is an integer, which of these functions generate the sequence?
Choose all answers that apply:

a(n) = 4(2)” for n > 0
b(n) = 2(2)" for n > 1
c(n) = 4n-1 for n > 2
d(n) = 4n-2 for n > 3

Answers

Answer: a and b

Step-by-step explanation: plug in

The function for the geometric series is Tₙ = 4 (2)ⁿ⁻¹, the correct option is A.

What is a Geometric Series?

A sequence of numbers such that the consecutive term is increasing or decreasing by a fixed ratio is called a geometric series.

The geometric series is

4,8,16,32,........

The function which denotes this sequence is given by

The standard equation for geometric series is

Tₙ = a₁ rⁿ⁻¹

r = 2

a₁ = 4

Tₙ = 4 (2)ⁿ⁻¹

To know more about Geometric Series

https://brainly.com/question/4617980

#SPJ2

Paolo missed 3 out of 15 questions on a quiz, or 3/15. Write the fraction of a questions paulo answered correctly as a decimal

Answers

12/15 correct = 0.8

Find the volume of the cone.
Either enter an exact answer in terms of pie or use 3.14 for pie and round your final answer to the nearest hundredth.

Answers

Answer:

301.59

96 π

Step-by-step explanation:

on khan acad. if you click on the box, you can click on the pi icon to do it in terms of pi.

I always do in terms, but make sure to learn the other way :)

the formula for cone volume is π r^2 h/3

radius = 6

height = 8

π 6^2 8/3

π 36 8/3

π 36 x 8 /3

π 288 / 3

π 96

CAN YOU HELP ME PLEASE

Answers

Answer:

a. 60 degrees

b. 300 degrees

c. 12π

d. 2π

e. 10π

f. 36π

g. 6π

-2x + 3 – 5x – 4 = -3x – 8 + 10x

what is x

Answers

Answer:

x= 1/2

Step-by-step explanation:

Let's solve your equation step-by-step.

−2x+3−5x−4=−3x−8+10x

Step 1: Simplify both sides of the equation.

−2x+3−5x−4=−3x−8+10x

−2x+3+−5x+−4=−3x+−8+10x

(−2x+−5x)+(3+−4)=(−3x+10x)+(−8)(Combine Like Terms)

−7x+−1=7x+−8

−7x−1=7x−8

Step 2: Subtract 7x from both sides.

−7x−1−7x=7x−8−7x

−14x−1=−8

Step 3: Add 1 to both sides.

−14x−1+1=−8+1

−14x=−7

Step 4: Divide both sides by -14.

Complete the equation so that it had infinitely many solutions

Answers

Answer:

1 - z/3

Step-by-step explanation:

A bread recipe calls for 4 eggs for every 1 ½ pounds of flour you use. If you had 12 pounds of flour, how many eggs would you need to make all the bread that you could? Hint: set up a proportion.

Answers

Answer:

you would need 36 eggs

Step-by-step explanation:

you need 36 eggs because you can put 1/12 into 12 9 times without going over and 9 times 4 is 36.

Solve for x: 2 + 3x = 10x - 5

Answers

Answer: 1

Step-by-step explanation:

2+3 = 5

10 - 5 = 5

The x’s would be just 1 to make them equal since they don’t need to be multiplied

Hey! The answer is 1. Here’s why: 10(1)-5=5 because 10x1 is 10 minus 5 is 5. And 3x1 is 3 and 3+2=10 they both equal 10. Hope this helped!

Find the volume of the composite solid. Round to the nearest tenth.
3 cm
6 cm
2 cm

Answers

Answer:

36 cm

Step-by-step explanation:

3 cm times 6 cm = 18cm

18 cm times the height (2 cm) = 36 cm

So, the answer is 36 cm for the volume.

Simplify each algebraic expression. 5(10a−2)

Answers

Answer:

The answer is 50a−10

Step-by-step explanation:

Answer:50a-10

Step-by-step explanation:

multiply 5 into the parenthesis: 5x10 and 5x2

Need help what’s the irrational number?

Answers

Answer:

B. √6

Step-by-step explanation:

Irrational number is a number that cannot be expressed in a form of fraction

2.5 = 5/2

√6 = 2.49...

1/2 = 1/2

√9 = 3/1

Tessa bought stock in a restaurant for $177.00. Her stock is now worth $260.19. What is the percentage increase of the value of Tessa's stock?

Answers

Answer:

About 45% increased

A circle has a radius of 4 in. What is the circumference of the circle?

Answers

Answer: C≈25.13in

Step-by-step explanation:

Mandy paid $9.84 for 3 pounds of ground meat. What is the price per pound?

Answers

Answer:

$3.28 wait for more responses if needed

Step-by-step explanation:

9.84 divided by 3 would be 3.28

Answer:

3.28 per pound

Step-by-step explanation:

All you have to do is divide 9.84 by 3 to see how much Mandy paid per pound.

Hope this helps!!!

help i still do not know

Answers

Answer:

6xy - 42x

Step-by-step explanation:

Distributive property: distribute the 3x. Multiply 2y*3x and -14*3x

(3x*2y) + (3x*-14)

= 6xy + (-42x)

=6xy - 42x

Other Questions

I need to solve 6 2/3-21/6 Read the excerpt from chapter 6 of The Travels of Marco Polo.Now that I have described the ships in which merchants voyage to and from India, let us change the subject and pass on to India itself. But first I will tell you of many islands that lie towards the east in this Ocean at which we have now arrived. We shall begin with an island that is called Japan.Japan is an island far out at sea to the eastward, some 1,500 miles from the mainland. It is a very big island. The people are fair-complexioned, good-looking, and well-mannered. They are idolaters, wholly independent and exercising no authority over any nation but themselves.Which sentence best reflects the authors subjective perspective on the people of Japan?The people of Japan live 1,500 miles from the mainland.The people of Japan live on an island.The people of Japan are good-looking and well-mannered.The people of Japan exercise no authority over other nations. True or False: Verdi was composing music during the Baroque period.PLEASE HELPPPP How does knowing the number of valence electrons in one of the alien elements help to identify it? Explain how a periodic table is used to accomplish this task. All cells have DNA that must be replicated True or false HI there I would Love some help! Thanks! Solve S = 2r(h + r) for h Bir snftaki erkekletin saysnn kzlarn saysna oran 3 bl 4 tr . snftaki kz rencilerin says 12 ise erkek orencilerin says katr do we apply the same or different standards for members of diverse groups or classes in American society ? Will give the brain list points Which two pieces of information would best support the statement that minerals are unevenly distributed across Earth's crust?A. The elements in each city's water supply are different.B. There are hundreds of volcanoes on Earth.C. The composition of Earth's crust is not uniform.D. Much of Earth's surface and atmosphere contain water. How does scarcity affect producers?oA. Limited costs prevent producers from hiking prices.oB. Limited demand prevents producers from offering low prices.C. Limited time prevents producers from finding the best employees.oD. Limited resources prevent producers from making unlimited products. 1 1. What is the solution to a system where the graph of both lines are the same? find the missing length indicated Why did President Jefferson want Lewis and Clark to establish good relations with Native Americans? simplify ( 3x + 3 )^2 Explain how ships transport invasive species in the ballast? Jeremiah will give all of his sports cards to a number of friends what is the greatest number of friends he can give his cards to so that each friend will receive an equal number of baseball cards and football cards? 4 8 12 or 16 32 baseball 24 football 2. Four big water bottles can hold 8 gallons of water. How much water can ten big water bottleshold? How did the invasion of North Africa, Sicily, and France eventually stop the Germans? Jim is making salsa. His recipe calls for 3 1 3 cups of tomato sauce for every 1 6 cups of cilantro. If Jim has 1 cup of cilantro, how many cups of tomato sauce will he need?