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Marina86 [1]
2 years ago
15

Three candy bars cost $3.81 at this rate how much does 7 candy bars cost

Mathematics
2 answers:
Mila [183]2 years ago
8 0

Answer:

$8.89

Step-by-step explanation:

one is 1.27 so multiply that by 7 and you get $8.89

Charra [1.4K]2 years ago
4 0

Answer:

3.81 ÷3 = 1.27

1 27×7 = 8.89

7 candy bars cost $8.89

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Use the elimination method to solve the system of equations.Choose the correct ordered pair. - x + y = - 2 and 2 x - 3y = 4
Zolol [24]

Answer:(2,0) x=2,y=0

Step-by-step explanation:

Let's solve your system by elimination.

−x+y=−2;2x−3y=4

Multiply the first equation by 2,and multiply the second equation by 1.

2(−x+y=−2)

1(2x−3y=4)

Becomes:

−2x+2y=−4

2x−3y=4

Add these equations to eliminate x:

−y=0

Then solve−y=0 for y:

−y=0

−y/−1 =0/−1

(Divide both sides by -1)

y=0

Now that we've found y let's plug it back in to solve for x.

Write down an original equation:

−x+y=−2

Substitute0foryin−x+y=−2:

−x+0=−2

−x=−2(Simplify both sides of the equation)

−x/−1 = −2/−1

(Divide both sides by -1)

x=2

8 0
3 years ago
Each day Donna and Mary toss a coin to see who buys the other person coffee ​($2.34 a​ cup). One tosses and the other calls the
netineya [11]

Answer:

yes

Step-by-step explanation:

Each day Donna and Mary toss a coin to see who buys the other person coffee ​($2.34 a​ cup). One tosses and the other calls the outcome. If the person who calls the outcome is​ correct, the other buys the​ coffee; otherwise the caller pays. Assume that an honest coin is​ used, that Mary tosses the​ coin, and that Donna calls the outcome.

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3 years ago
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slava [35]

Answer:

Step-by-step explanation:

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3 years ago
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skad [1K]
Well If your trying to turn it into a decimal the answer would be .25 but if you want it as a fraction the answer is 100 over 25. Hope I helped!

-Amber
7 0
3 years ago
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How do you know how many places are in fifty million without writing the number in standard form
wolverine [178]
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50 has 1 more place value than one, so 50 million has 1 more place value than 1 million.

So, 50 million has 8 place values.

4 0
3 years ago
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