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Kaylis [27]
2 years ago
10

What is y=2x + 1 and y=4x (using algebra to solve linear systems) PLEASE SHOW THE WORK/STEPS

Mathematics
1 answer:
Zina [86]2 years ago
6 0
I would help but i have no idea
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Nelly the narwhal can swim 12 laps in 8 minutes how many minutes per lap is that?
valentinak56 [21]

Answer:

1.5 lpm

Step-by-step explanation:

12 laps divided by 8 minutes = 1.5 laps per minute

4 0
2 years ago
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It is known that x+y=10 and that x=z show that z+y=10
morpeh [17]
Known that,

x = z

Also known that,

x + y = 10

Substituting value of x,

z + y = 10

Hence, proved.
4 0
2 years ago
BRAINLIEST IF CORRECT!!!
LenKa [72]

Answer:

X=1

Step-by-step explanation:

3 0
2 years ago
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How many pounds of candy worth 70 cents a pound must be mixed with 30 pounds of candy worth 90 cents a pound to produce a mixtur
Svet_ta [14]
<h3>Answer:</h3>

B) 10 pounds

<h3>Explanation:</h3>

Let x represent the amount of 70¢ candy to be added. The value of the mixture can be written as ...

... 90×30 + 70x = 85×(30+x) . . . . . where 30+x is the total weight of the mix

... 2700 +70x = 2550 +85x

... 150 = 15x . . . . . . add -70x-2550

... 10 = x . . . . . . . . . divide by the coefficient of x

10 pounds of candy at 70¢/lb must be added.

5 0
3 years ago
simplify the expression. write the answer using scientific notation. (9x10^7)(7x10^9) 1.6x10^17 1.6x10^64 6.3x10^64 6.3x10^17
Daniel [21]
The\ scientific\ notation:a\cdot10^n\ where\ 1\leq a \ \textless \  10\ and\ n\in\mathbb{Z}\\----------------------------\\\\(9\cdot10^7)(7\cdot10^9)=(9\cdot7)(10^7\cdot10^9)=63\cdot10^{7+9}\\\\=63\cdot10^{16}=6.3\cdot10^{16+1}=6.3\cdot10^{17}
5 0
3 years ago
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