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mariarad [96]
3 years ago
6

The cost for an eighth-grade party is $450 for room rental, entertainment, and

Mathematics
1 answer:
cupoosta [38]3 years ago
7 0

how many people????????????

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Murtha has decided to start a pebble collection. She collects one pebble the first day and two pebbles on the second day. On eac
Musya8 [376]

Answer:

78

Step-by-step explanation:

Given that:

First day (a) = 1

1 more pebble every subsequent day than the previous day

Tn = a + (n - 1)d

d = common difference ; difference between pebbles in two successive days = 1

n = nth day

At the end of the 12th day;

Tn = a + (n - 1)d

T(12) = 1 + (12 - 1) 1

T(12) = 1 + 11

T(12) = 12

Appling the sun if arithmetic progression formula : Sum of AP:

n/2 (a + Tn)

n = number of terms

12/2 (1 + 12)

6(13)

= 78

4 0
3 years ago
[WILL MARK AS BRAINLIEST IF CORRECT]
liubo4ka [24]
A B D and E i believe
3 0
3 years ago
Read 2 more answers
An angle of 200 is a/an _______ angle.<br> a. reflex<br> b. straight<br> c. right<br> d. acute
krok68 [10]
Reflex angle because straight is 180 and right is 90 and acute is less than 90
3 0
2 years ago
Susan, Deon, and Felipe sent a total of 160 text messages during the weekend. Felipe sent 4 times as many messages as Susan. Deo
Romashka [77]

Answer:

Susan sent 25 messages

Felipe sent 100 messages

Deon sent 35 messages

Step-by-step explanation:

160 = x + 4x + x + 10

160 = 6x + 10

6x = 150

x = 25

7 0
2 years ago
Choose four point from the table. Compare rates (linear Representation)​
daser333 [38]

Answer:

b

Step-by-step explanation:

Give me brain list plssssss

5 0
2 years ago
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