Mathematics High School

Kerry said that the Japanese Bullet Train takes about 6 minutes
to travel 22.2 km. Jerry said that at this rate, he could travel
around the world at the equator in less than 8 days. Kerry
disagrees - she thinks it will take longer. Who is correct?
Justify your response.
*The diameter of Earth is approximately 12 756 km.

Solution for grade 8

Answers

Answer 1

Answer: 36 minutes

Can you help me with my questions to thanks

Related Questions

Pls help! I need answer.

Answers

Answer:

b = 98

Step-by-step explanation:

hope this helps . thanks

13. Find the measures of the numbered angles.

Answers

Answer:

8=117 7=63 9=63

Step-by-step explanation:

180-117 = 63

7 and 9 = 63

A straight line=180

Angles across from each other are the same

9 and 7 are the same, and 117 degrees and 8 are the same

que es el dominio en notación de intervalo?

Answers

Answer: El dominio es el conjunto de números reales. En forma de intervalo, el dominio de f es (−∞, ∞). Identifica los valores de entrada. / The domain is the set of real numbers. In interval form, the domain of f is (−∞,∞). Identify the input values.

Step-by-step explanation: Used my sheet.

Wallpaper was applied to one rectangular wall of a large room. Width: 42 ft length:25.5 ft. If the total cost of the wallpaper was $771.12, what was the cost, in dollars, of the wallpaper per square foot?

Answers

Answer:

$825869.52

Step-by-step explanation:

Given that,

Width of the rectangle, b = 42 ft

Length of the rectangle, l = 25.5 ft

The area of a rectangle is given by :

A = lb

So,

A = 42 ft × 25.5 ft

A = 1071 ft²

The total cost of the wallpaper was $771.12 . So,

Cost = 1071 × 771.12

= $825869.52

So, the cost of wallpaper per square foot is equal to $825869.52.

what is the scientific notation of 0.0000003

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Answer:

This is ur answer.

Hope.it helps!!!

2x3 equals what because I didn’t get it

Answers

Ok so 2x3= 6 so yeah

Answer:2×3=6

or Add 2 three times

the width of a rectangle is 4 feet, and the diagnal length of the rectangle is 13 feet,which measurment is the closest to the length of this rectangle feet?
A.9ft
B.17ft
C.12.4ft
D.13.6ft

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Answer:

w = 4 ft

diagonal= 13 ft

l= 13^2-4^2=169-16 = sq root 153

=12.4 ft (approx)

ONLY 2 MINS HELP!!!!!!!!!!!!!!!!!!!1

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Answer:

the answer you are looking for is C

What is the value of x for the similar shapes
:( someone pls help I’ll give brainiest if u tell me how to do this

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24 explanation: it said similar and I referred it to being the same just a half smaller, then I saw that 6 on the small square is like the 12 on the big square soooo If you see it you can do 6=12(half) and so then 12=24 (whole) on the big square:) hope this helped:)

HELP ASAP PLZ. This is timed. I will award 50pts and Brainly to whoever can give me the slope intercept form to this equation. It is vital to my math grade. I risk failing if I don't get this right. HELP HELP HELP. Time is on the essence and my grade is at risk

Answers

Answer:

(0,7)

(7/3,0)

Hope this helps!

Step-by-step explanation:

The figure does not have enough information to state that the two triangles are similar. Explain why you can not prove the triangles similar? What additional information would be needed? (worth 20 points)

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Answer:

We can't prove it equal because the measures are different, it cannot be proved through AAS, ASA, SAS or SSS

angle U=Angle R

but UW≠ RT &RS

Step-by-step explanation:

Please help this is due soon!!! :( Please explain with explanation and answer pls

Answers

Answer for A:

x = -56/31

Step-by-step explanation:

The total angle for a pentagon is 360°

100 + 20(-56/31) + 140 + 160 - 5(-56/31) + 16(-56/31) + 16 = 360

100 + -36.1290322581 + 140 + 160 + 9.03225806452 + 28.9032258065 + 16 = 360

If you copy that into a calculator you will get

360°

Answer for B:

The angle for C, rounded to the nearest tenth, is 44.9°

The relationship between x and y is represented by the table below. Which equation represents this
table?
Х
y
1
6
3
10
4
12.
5
14
A y = x +5
By = 2x + 4
C y = 3x + 3
D
Not Here

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Answer is D not here

What is the slope of a line of best fit if its equation is y = −8x + 9?

Answers

Answer:

-8

Step-by-step explanation:

-8 also = -8/1, which you would use as your slope on a graph.

The Y intercept would then be (0,9)

Answer:

-8

Step-by-step explanation:

define Multiplication Property Of Inequality

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Answer:

Step-by-step explanation:

basically it's when the order changes, but the value doesnt.

example: a*b=b*a

Please help me...will mark brainiest

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Answer:

x-121

Step-by-step explanation:

Answer:

x² - 22x + 121

Step-by-step explanation:

(x-11)² is the same as (x-11)(x-11)

multiply the x in the first parentheses by x and -11 in the other parentheses and multiply the -11 in the first parentheses by x and -11 in the other parentheses and add all together

x²- 11x - 11x + 121

x² - 22x + 121

write and solve an equation to find the missing diemsion of the circle
diameer=24

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Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

tinyurl.com/wtjfavyw

Help anyone please god lord anyone please lord pleaseeeee

Answers

What are you supposed do ?

guess how tall i'm, i'm 13

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Answer:

8'9

Step-by-step explanation:

Answer:

..........................

While waiting for a video game to download, you notice that
30
%
30%30, percent of
32
,
000
32,00032, comma, 000 kilobytes have been downloaded so far.
How many kilobytes have been downloaded so far?

Answers

Find out the how many kilobytes have been downloaded so far .
To prove
As given
While waiting for a video game to download.
notice that 30 percent of 32000 kilobytes have been downloaded so far .
30% is written in the decimal form.

= 0.30
kilobytes uses in downloaded = 0.30 × 32000
= 9600 kilobytes
Therefore 9600 kilobytes have been downloaded so far .

An auditorium has 21 rows of seats. The first row has 18 seats and each succeeding row has 2 more seats than the previous row. How many seats are in the auditorium?

Answers

Answer:

798

Step-by-step explanation:

So, 21*{2*18 + (21-1)*2}/2

= 21*{36 + 20*2}/2

= 21*{36+40}/2

= 21*76/2

= 1596/2

= 798

Total number of seats is 798

Given that;

Number of seats in first row = 18

Number of rows = 21

Each row added number of seats then previous = 2

Find:

Total number of seats

Computation:

Total number of seats = Sn = (n/2)[2a + (n-1)d]

Total number of seats = Sn = (21/2)[2(18) + (21-1)2]

Total number of seats = (21/2)[36 + (20)2]

Total number of seats = (21/2)[36 + 40]

Total number of seats = (21/2)[76]

Total number of seats = (21)(38)

Total number of seats = 798

Learn more:

https://brainly.com/question/16668552?referrer=searchResults

please help :(((((!!!

Answers

Answer/Step-by-step explanation:

1. x = 130 ° (corresponding angles theorem)

y = x (vertical angles theorem)

y = 130 (substitution)

y = 130° (alternate exterior angle theorem)

2. x = 65° (corresponding angles theorem)

y = 180 - 65 (linear pair theorem)

y = 115°

3. x = 180 - 80 (linear pair theorem)

x = 100°

y = 80° (alternate exterior angle theorem)

Jack has $500 in a bank account that will earn 3% interest every year. Diane has $100 in an investment account that will earn 12% every year. How many years will it take for Diane's account balance to overtake Jack’s?

Answers

Answer:

20 years

Step-by-step explanation:

A=500(1+.03)^20

$903

A=100(1+.12)^20

$964

It took her 20 years to overtake.

Answer:

Simple interest = NeverCompound interest = 19 years and 4 months

Step-by-step explanation:

Jack

Initial amount = $500Interest rate = 3% = 0.03

Yearly interest = 0.03*500 = $15

Diane

Initial amount = $100Interest rate = 12% = 0.12

Yearly interest = 0.12*100 = $12

Diane's initial amount and yearly interest amount are both less than of Jack's.

It means her balance will never overtake Jack's.

=======================

It is not mentioned in the question but let's assume it is compound interest which is annually compounded.

Then after x years their balance will be:

Jack

500(1 + 0.03)^x = 500*1.03^x

Diane

100(1 + 0.12)^x = 100*1.12^x

Solve inequality below:

100*1.12^x ≥ 500*1.03^x(1.12/1.03)^x ≥ 51.087^x ≥ 5x log 1.087 ≥ log 5x ≥ log 5 / log 1.087x ≥ 19.29 years = 19 years and 4 months

Which expression is represented on this number line?

Answers

Answer:

where's the number line??

PLS HELP ME ITS DUE IN 5 MINS
The diagram shows a right triangle and three squares. The area of the largest square is 555555 units^2
2
squared.

Which could be the areas of the smaller squares?
Choose all answers that apply:
Choose all answers that apply:

(Choice A)
A
121212 and 434343

(Choice B)
B
141414 and 404040

(Choice C)
C
161616 and 373737

Answers

Answer:It's 12 and 43

Step-by-step explanation:

Answer:

Step-by-step explanation:

subtract 9 from 16 as an expression pls help

Answers

Answer:

16 - 9 = x

i thonk :0

or 16 - 9 = 7

Step-by-step explanation:

ADD two expressions
-3t-1 and 6t + 10

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3t + 9 is the correct answer!ADD ALL LIKE TERMS!-3t + 6tis the same as6t - 3twhich equals3t-1 + 10is the same as10 - 1which equals9Please let me know if I am wrong.

Math- Lisa is buying a cover for her patio table. If the table is 5 ft on all sides, what is the area of the cover?

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Answer:

Step-by-step explanation:

length times width

5 times 5

Jack has 5 apples, he picks out 3 pears. If his train is 7 minutes late, how much time does he have until he dies?

Answers

Answer:

huh

Step-by-step explanation:

Answer:

uh well I can't be sure but i would say approx 69 minutes since the train happens to be exactly 7 min late

Find the value of 56÷p when p=7.

Answers

Answer:

Step-by-step explanation:

56/7 = 8

Answer:

56 /p.

is is given that

p = 7

now putting the value of p in question

then we get

56/7

hope it helps

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