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Anika [276]
3 years ago
8

Witch expression is not equivalent to -3x-1/2+4y

Mathematics
1 answer:
valina [46]3 years ago
6 0
I don’t know how to answer this i’m sorry
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A student has some​ $1 and​ $5 bills in his wallet. He has a total of 14 bills that are worth ​$34. How many of each type of bil
jeka57 [31]

Solution:

we are given that

A student has some​ $1 and​ $5 bills in his wallet.

Let there x $1 bills and y number of $5 bills.

He has a total of 14 bills that are worth ​$34.

So we can write

x+y=14

x+5y=34

Now solve these two equations together using substitution as follows

14-y+5y=34\\
\\
4y=34-14\\
\\
4y=20\\
\\
y=5\\
\\
x=14-y=14-5=9\\

Hence there are 9 $1 bills and 5 bills are of $5.

5 0
3 years ago
Can someone help me with this?
Damm [24]

Answer:

<h2>780</h2>

Step-by-step explanation:

What is the sum of the series 5^n from n=1 to 4.

5^1 + 5^2 + 5^3+ 5^4 =

5 + 25 + 125 + 625 =780

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Did any of you army's go to the BTS concert, because I sadly didn't get to go.
kakasveta [241]

Answer:

No I didn't go

Step-by-step explanation:

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2 years ago
You deposit $2,000 in a savings account, and a year later you have $2,100. Meanwhile, the consumer price index rises from 200 to
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Step-by-step explanation:

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Can’t get these 15 for whoever answers
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A

Step-by-step explanation:

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