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Eddi Din [679]
3 years ago
6

(08.06 LC)

Mathematics
2 answers:
tino4ka555 [31]3 years ago
8 0

Answer:

B:

b = c + 7

b = c - 1

Step-by-step explanation:

"Variable b is 7 more than variable c" can be expressed mathematically as

b = c + 7

"Variable b is 1 less than variable c" can be expressed mathematically as

b = c - 1

So the second pair,

b = c + 7

b = c - 1

best models the relationship between b and c

Hope this Helps :)

AVprozaik [17]3 years ago
4 0

Answer:

First one

Step-by-step explanation:

Variable b is 7 more than variable c:

b = c + 7

Variable b is also 1 less than variable c:

b = c - 1

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Is x-y=1 a direct variation
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Xy=1/5......

Step-by-step explanation:

because

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an archaelogist in turkey discovers a spear head that contains 63% of its original amount of c-14. find the age of the spear hea
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Amy drives her car until the gas gauge is down to 1/8 full, then she fills the tank to capacity by adding 14 gallons. What is th
Kazeer [188]

Answer:

Amy's car tank capacity is 16 gallons.

Step-by-step explanation:

Let the capacity of the tank be 'x'

Given:

Amount of gas in the car till it is refilled = \frac{1}{8}\times x = \frac{1}{8}x \ gallons

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We need to find the capacity of the tank.

Solution:

Now we can say that

Total Capacity of the tank is equal to sum of Amount of gas in the car till it is refilled and Amount of gas added.

framing in equation form we get;

x=\frac{x}{8}+14

Combining the like terms we get;

x-\frac{x}{8}=14

Now making the denominators common we will use L.C.M.

\frac{8x}{8}-\frac{x\times1}{8\times1}=14\\\\\frac{8x}{8}-\frac{x}{8}=14\\\\\frac{8x-x}{8}=14\\\\\frac{7x}{8}=14

Now multiplying both side by 8 we get;

\frac{7x}{8}\times 8=14\times8\\\\7x = 112

Now dividing both side by 7 we get;

\frac{7x}{7}=\frac{112}{7}\\\\x=16\ gallons

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8 0
3 years ago
Is this right please help.Will mark brainliest
KatRina [158]
Yes it is because -7+7=0 & 0+5=5 & 7+5=12
3 0
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