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klasskru [66]
2 years ago
10

HELP PLEASE AND THANK YOU????!!!

Mathematics
2 answers:
TiliK225 [7]2 years ago
6 0
10 coins. 70 divided by 7equals 10
Lyrx [107]2 years ago
3 0

Answer:

There are 10 coins in each stack

Step-by-step explanation:

You have 7 stacks

There are 70 coins in total

So you know that number of parts and the total number

Divide 70/7 to get your answer of 10

Whenever solving a problem like this, figure out what parts of the equation you know and solve from there!

Hope this helps! :)

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3 years ago
Given that a = -1, b=2 and c= -3 ,find the value of a(b2+c2)
KiRa [710]

Answer:

a(b^{2}+c^{2}) = = -13

Step-by-step explanation:

Given that a = -1, b=2 and c= -3

find the value of a(b^{2}+c^{2})

Just substitute the values given for each variable

a(b^{2}+c^{2}) = (-1)(2^{2}+(-3)^{2}) ; do the exponents first

a(b^{2}+c^{2}) = (-1)(4+9)=(-1)(13) ; now add inside the parenthesis;

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7 0
3 years ago
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MariettaO [177]

Answer:

What's the question?

Step-by-step explanation:

6 0
3 years ago
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stira [4]

Answer:

-12x - 14y

Step-by-step explanation:

First I would move them side by side so I can see it better so:

-7x - 5x - 8y - 6y

now combine the x values together and the y values together:

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7 0
3 years ago
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expeople1 [14]

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