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Mamont248 [21]
3 years ago
6

An amphitheatre has 15 seats in the first​ row, 19 in the​ second, 23 in the​ third, and so​ on, for 34 rows. How many seats are

in the​ amphitheatre?
Mathematics
1 answer:
Mars2501 [29]3 years ago
4 0

Total seats=15+19+23+27+31+35+39+43+47+51+55+59+63+67+71+75+79+83+87+91+95+99+103+107+111+115+119+123+127+131+135+139+143+147=2754 seats

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Marco borrowed $150 from his brother. He has paid back 30% back so far. How much money does Marco still owe his brother? Pls exp
kramer
Marco still owes his brother $105.  You get this answer by doing the following: Start by multiplying 150 * 0.3  (This is the same as multiplying by 30%).  You will get 45 for your answer. This number is how much Marco has paid his brother so far. Then subtract 45 from 150  (150-45) to find out how much more Marco has left to pay.  Your final answer will be $105.
5 0
4 years ago
Karita had 138.72 in her check account. She wrote checks for 45.2 and 18.00. Then she made a deposit of 75.85 into her account.
Mama L [17]

Answer:

about 152

Step-by-step explanation:

138.72-(45.2+18)+75.85=151.37

5 0
3 years ago
Please answer number 1.
Aneli [31]

Answer: The two specific conjectures are in the first image, and the two general conjectures are in the second image.

7 0
2 years ago
Before you is a pile of 8 blocks: 4 are white, 3 are yellow, and 1 is purple. By placing the blocks side by side in a straight l
Korolek [52]
The answer is 
using the factoral calculator, we can find
4! x 3! x 1! = (4x3x2x1) x(3x2x1) x (1)= 24* 6 * 1 = 144
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so it will be 2 x 144 = 288 <span>different color patterns
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3 0
3 years ago
Read 2 more answers
What 42 rounded to the nearest ten​
Savatey [412]

Answer:

40

Step-by-step explanation:

the tens value is the 2 value from the left of a decimal point.

Examples: 32  67.4  2345 904

In your case, the tens value is 4

We need to look at the ones value to see if we need to round up or down

Because the ones value, 2, is less than 5, we keep the tens value, so it's 40

4 0
4 years ago
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