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dmitriy555 [2]
3 years ago
7

an amphitheatre has 20 seats in the first row, 22 in the second, 24 in the third, and so on, for 33 rows how many seats are in t

he amphitheatre
Mathematics
1 answer:
matrenka [14]3 years ago
3 0

Answer:

220 + 242+ 363= 825 seats are in the amphitheater.

Step-by-step explanation:

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Fred spent half his allowance on going to the movies he then washed the family car for six dollars he now has eleven dollars how
kotykmax [81]

Answer:

He gets $10 for his weekly allowance.

Step-by-step explanation:

Let x represent the amount that Fred gets for his allowance weekly.

Fred spent half his allowance on the movies. This means that the total amount that he spent on the movies is x/2. The amount that he is left with would be

x - x/2 = x/2

He washed the family car for six dollars. This means that the total amount that he is left with would be

x/2 + 6

if he now has eleven dollars, it means that

x/2 + 6 = 11

x/2 = 11 - 6 = 5

x = 2 × 5 = $10

4 0
3 years ago
Find the mean of the following data set. 8, 5, 15, 12, 10 12.5 10 14 50
cluponka [151]

Answer:

10

Step-by-step explanation:

8+5+15+12+10= 50 / 5 = 10

7 0
3 years ago
Simplify (3х2 – 2) + (2х2 – бх + 3).
kolbaska11 [484]

Answer:

5x^2 -6x +1

Step-by-step explanation:

(3х^2 – 2) + (2х^2 – бх + 3).

Combine like terms

(3х^2  + 2х^2 – бх + 3-2)

5x^2 -6x +1

4 0
3 years ago
Select the correct answer.<br> Find the value of x.<br> Please answer!!!
olga nikolaevna [1]

C. 64

Rewrite the logarithm:

8=x^.5

Solve by raising both sides of the equation to the power of the inverse (in this case, the inverse of .5, which is 2):

8^2=x^(.5*2)

64=x

6 0
3 years ago
Can someone plz help me with this
slava [35]

Answer:

Step-by-step explanation:

2a. f(-3) = (-3)^2-4(-3)+6 = 9+12+6 = 27

2b. f(-2) = 3(-2)^2-(-2)^3 -2 +1 = 3(4) - (-8) -2 +1

= 12+8-1 = 19

8 0
3 years ago
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