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LuckyWell [14K]
3 years ago
7

Pls help! will give brainliest

Mathematics
1 answer:
IrinaVladis [17]3 years ago
6 0

7) D -80

8) C -3.3

9) A 127.6

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Please help i can’t figure this out
UNO [17]

Answer:

C because 100 percent of 15 is 15 and 20 percent of 15 is 3

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2 years ago
The price of gold is often reported per ounce. At the end of 2005, this price was $513. At the end of 2015, it was $1060. By wha
GuDViN [60]

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System of equations by substitution<br> how do this?<br> y= x+2<br> y= -4x+7
jekas [21]
Equations are given,
y= x+2
<span>
y= -4x+7

As you can see both the expressions, x+2 and -4x+7 are equal to "y". That means they are equal to each other too.

So let's equal them and solve it.

</span>x+2=-4x+7\\ \\ x+2+4x=7\\ \\ x+4x+2=7\\ \\ 5x+2=7\\ \\ 5x=7-2\\ \\ 5x=5\\ \\ x=\frac { 5 }{ 5 } \\ \\ x=1
<span>
Now we have x's value we will plug it in the first equation to find "y".

</span>x=1\\ \\ y=x+2\\ \\ y=1+2\\ \\ y=3
<span>
(1,3)</span>
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3 years ago
F+3.8=9.2 in simplest form
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Just isolate f.. buy getting it alone on one side or the other

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Matt spent 1/3 of the money in his pocket on a movie ticket. he spent 1/4 of the money on a snack. what fraction of his money is
Alenkasestr [34]
What is left is 5/12 of his money
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