1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
elena55 [62]
3 years ago
10

An auditorium has 20 seats on the first row, 24 seats on the second row, 28 seats on the third row, and so on and has 30 rows of

seats. How many seats are in the 30th row?
Mathematics
1 answer:
Lilit [14]3 years ago
8 0

Answer:

140

Step-by-step explanation:

20+4(s)=

20+4(30)=

20+ 120=

140

You might be interested in
Thomas has 4 blocks colored blue, red ,green and yellow. How many different ways can he combine them on a shelf?
Kipish [7]
64 different possibilities are there
4 0
3 years ago
How many 0.3's would it take to make 3? Explain your reasoning. ​
grin007 [14]
10. Since it you want to find how many 0.3s it would take to make 3, you would divide 3 by 0.3 or move the decimal over one spot to the right making it 10.
3 0
3 years ago
The probability that a house in an urban area will develop a leak is 55​%. if 2020 houses are randomly​ selected, what is the pr
k0ka [10]
<span>The probability that a house in an urban area will develop a leak is 55​%. if 20 houses are randomly​ selected, what is the probability that none of the houses will develop a​ leak? round to the nearest thousandth.

Use binomial distribution, since probability of developing a leak,  p=0.55 is assumed constant, and
n=20, x=0
and assuming leaks are developed independently between houses,
P(X=x)
=C(n,0)p^x* (1-p)^(n-x)
=C(20,0)0.55^0 * (0.45^20)
=1*1*0.45^20
=1.159*10^(-7)
=0.000

</span>
7 0
4 years ago
Molly can drive her car 112 miles on 4 gallons of gas and 182 miles on 6.5 gallons write an equation to show the relationship be
Rashid [163]

Answer:

Molly can drive her car 112 miles on 4 gallons of gas and 182 miles on 6.5 gallons write an equation to show the relationship between the number of gallons she has and the number of miles she can drive and how many gallons she would need to drive 420 miles⊂⇄∪↓Ф

Step-by-step explanation:

3 0
3 years ago
Y=6<br> X+2y=16<br><br> Can someone one help me out its a substitution and system of equations graph
Nikitich [7]
If you know that y = 6. You just have to switch Y by 6.

x + 2y = 16
x + 2*6 = 16
x + 12 = 16
x = 16 - 12
x= 4

4 + 2*6 = 16

Hope this helps !

Photon
7 0
4 years ago
Other questions:
  • What is the vertex of the absolute value function defined by ƒ(x) = |x + 5| + 7?
    6·2 answers
  • The present population of a town is 3125. If the population increases
    15·2 answers
  • How would you draw 4 2/3?
    5·1 answer
  • Find the mean, median and mode(s) of the data. Choose the measure that best represents the data. Explain your reasoning.
    8·1 answer
  • The distribution of the number of transactions performed at a bank each day is approximately normal with mean 478 transactions a
    13·1 answer
  • Please i need help. need to turn this in soon<br> Write a inequality that corresponds to this graph.
    7·1 answer
  • Describe the number 72 in tens and ones
    10·2 answers
  • Please help me my grade is a D
    14·1 answer
  • Help me pleaseeeeeeeeeeeeee
    6·1 answer
  • HELP PLEASE!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!