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Art [367]
3 years ago
8

Sally has 16 marbles in her collection. John has only 7 marbles. Sally gives John 8 of her marbles. How much marbles does John h

ave now?
Mathematics
1 answer:
Sati [7]3 years ago
5 0

Answer:

The answer is 15

Step-by-step explanation:

hope this helps

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three numbers are in an arithmetic progression. Their sum is 3 and the sum of their squares is 11. what are the three numbers
Vlad [161]

The three numbers are 12, 18 and 24

Arithmetic progression

Let the 3 number in arithmetic progression be:

a-d, d, a+d ...

If their sum is 3, then;

a-d+d+a+d = 3

2a + d = 3 ........... 1

If the sum of their squares is 11, then;

(a-d)² + d² + (a+d)² = 11

a²-2ad+d²+d²+a²+2ad+d²  11

2a²+3d² = 11 ....... 2

Solving the equations simultaneously, d = 6 and a = 12

First-term = 12

second term = 18

Thirs term = 24

Hence the three numbers are 12, 18 and 24

Hope this helps you!!!!!! :D

5 0
2 years ago
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The Science Club went on a two-day field trip. The first day the members paid $30 for transportation plus $17 per ticket to the
marishachu [46]

Answer:

(30$+17$)+(65$+10$)=

Step-by-step explanation:

6 0
3 years ago
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What is the quotient of....
Phantasy [73]
The answer is x-2 plz give brainliest and good luck!
6 0
3 years ago
How to solve y for the equation 6y+x=8
IgorC [24]

y=4/3-x/6

Step-by-step explanation:

6y/6+x/6=8/6

y+x/6=4/3

-x/6 -x/6

y=4/3-x/6

7 0
3 years ago
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How does the value of the 9 in 857.9 differ from the value of 9 in 798.21
goldenfox [79]

Step-by-step explanation: The 9 in 857.9 differs from the value of 9 in 798.21 because in 857.9, the 9 is in the tenths place, while in 798.21, it is in the tens place.

4 0
3 years ago
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