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Annette [7]
3 years ago
10

15b − 15b + 3b − 2b = 8 What is b?

Mathematics
1 answer:
olasank [31]3 years ago
8 0

Answer:

b = 8

Step-by-step explanation:

Look at picture.

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Certain items are purchased jointly. If each person pays 8 coins, the surplus is 3 coins, and if each person gives 7 coins, the
Karo-lina-s [1.5K]

Answer:

7 people purchase the items and they used 53 coins

Step-by-step explanation:

Let x represent the number of people.

Let y be the number of coins needed to purchase the items.

If each person pays 8 coins, the surplus is 3 coins. This is illustrated below:

8x = y + 3 (1)

if each person gives 7 coins, the deficiency is 4 coins. This is illustrated below:

7x = y — 4 (2)

Solving by elimination method: subtract equation(2) from equation (1). This is illustrated below:

8x = y + 3 (1)

— (7x = y — 4) (2)

x = 7.

Next, Substituting the value of x into any of the equation to obtain y. In this case I will be using equation 1 as illustrated below:

8x = y + 3 (1)

8(7) = y + 3

56 = y + 3

Collect like terms

y = 56 — 3

y = 53

Therefore, 7 people purchase the items and they used 53 coins

7 0
3 years ago
I need help on thesis promblem please
astraxan [27]
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4 0
3 years ago
Identify a pattern in the given list of number <br> 1,2,1,4,1,8,1 what’s the next number ?
Ipatiy [6.2K]
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it looks like the pattern is 1, (x+2) x is the number before it
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D. there is a perfect association between the variables


7 0
3 years ago
HELP ME PLEASE IM SO DESPERATE TO ANSWER THIS, ILL BE SO THANKFUL TO YALL
Scrat [10]

Answer:

x+2 volts is what I got.

Step-by-step explanation:

7 0
3 years ago
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