Questions by Jianhong

Questions by Jianhong

In a concert hall, there are 18 chairs in the first row, and each row has 2 more chairs than the previous row. There are 15 rows altogether. How many chairs are there in the concert hall?

asked Feb 10, 2022

1 answer

12 votes

61.3k views

Very simple ques. When a substance dissolves it-- * 1 changes its physical state 2 melts. 3 breaks down into smaller pieces.

asked Dec 13, 2021

1 answer

0 votes

209k views

Density of copper is 8.96 g/cm3and density of zinc is 7.14 g/cm3. Brass is an alloy made of copper and zinc. You are given a sample of brass with the density of 8.32 g/cm3. The price of zinc is $1.80/kg

asked Sep 18, 2021

2 answers

2 votes

18.4k views

What is the value of x? Enter your answer in the box. x =

asked Jul 13, 2021

2 answers

2 votes

173k views

if alpha and beta are the roots of the equation 3x^2-9x+2=0 find the values of: (I) alpha ×beta + alpha^2 × beta. (ii) alpha^2-alpha×beta+beta^2

asked Jul 6, 2021

1 answer

5 votes

195k views

Tanisha has 16 books she wants to read. She reads One Fourth of them. How many books has Tanisha read?

asked Jun 10, 2021

1 answer

1 vote

105k views

Which writing algebraic expression correctly translate 2n + 8

asked Jun 6, 2021

1 answer

0 votes

211k views

What is the solution of the system? Use the elimination method. 2x+y=20 6x?5y=12

asked Sep 19, 2020

2 answers

4 votes

58.1k views

04 BTW 19-20 Va/US Unit 1 TEST / 30 of 30 Which colony probably had the highest amount of slaves? A. Rhode Island O B. Pennsylvania O C. North Carolina O D. Massachusetts

asked Aug 28, 2020

1 answer

2 votes

166k views

In 1611, the word conversation meant the manner of living. true or false

asked Aug 19, 2019

2 answers

0 votes

127k views

Verbal irony definition

asked Oct 27, 2018

1 answer

0 votes

137k views

Which of the following represents the factorization of the trinomial below?

asked Aug 14, 2018

2 answers

3 votes

196k views

The leader of the temperance movement was trying to get people to limit what?

asked Jun 24, 2018

1 answer

0 votes

52.8k views

The four main Allies in World War I were _____. Spain Austria-Hungary England France United States China Russia

asked Oct 22, 2017

2 answers

0 votes

25.0k views

Please help as soon as possible

asked Oct 1, 2017

2 answers

2 votes

199k views

Question answer now please

asked Apr 11, 2017

1 answer

1 vote

222k views

What is $59.99 with 15% off

asked Apr 12, 2016

1 answer

2 votes

156k views

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