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frutty [35]
3 years ago
11

Which expression is equivalent to the expression below? 7x+5y+x+x+x+x

Mathematics
1 answer:
Vlad [161]3 years ago
6 0

Answer:

11x+5y

Step-by-step explanation:

7x+5y+x+x+x+x

Combine like terms

7x+x+x+x+x  +5y

11x  +5y

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you need 3 sticks of butter for every 24 cookies you bake how many sticks of butter do you need for 16 cookies
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Answer: 2

Step-by-step explanation:

24 divided by 3 is 8 so 1 stick of butter makes 8 cookies so 2 sticks of butter make 16 cookies(2 x 8)

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PtichkaEL [24]

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3 years ago
100 points + Brainy<br><br> Math help please
aev [14]

Answer:

Q = -6

Step-by-step explanation:

To find the answer to this, you first must multiply the first function by 2:

2 x (x - 3y = 4)

2x - 6y = 8

Which then means that the second function is the same. This means that to find Q you need to find the number that changed +Qy into -6:

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5 0
4 years ago
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The Richter scale is used for measuring the magnitude of an earthquake. The Richter magnitude is given R = 0.67log(0.37E) + 1.46
natka813 [3]

Answer:

7.9982

Step-by-step explanation:

-The function for an earthquake's magnitude is given by  R = 0.67log(0.37E) + 1.46

-E is energy in kwh.

#For 15,500,000,000 kilowatt hours the magnitude would be:

R = 0.67\ log(0.37E) + 1.46,\ \  E=15,500,000,000  \ kwh\\\\\therefore R=0.67 \ log(0.37\times 15,500,000,000)+1.46\\\\\\=7.9982

Hence, the earthquakes magnitude is 7.9982

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