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Anettt [7]
4 years ago
9

Solve the system of equation by graphing

Mathematics
1 answer:
Zigmanuir [339]4 years ago
3 0
It is A because I saw your other post
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a coin lands on heads 200 times. the relative frequency of heads is 0.4. how many times was the coin thrown?
Kazeer [188]

Answer:

The number of times coin thrown was <u>500</u>.

Step-by-step explanation:

Given:

A coin lands on heads 200 times. the relative frequency of heads is 0.4.

Now, to find the times coin was thrown.

Let the number of times coin thrown was be x.

Relative frequency = 0.4.

Number of lands on heads = 200.

So, to get the number of times coin was thrown we put formula:

Relative\ frequency=\frac{Number\ of\ lands\ on\ heads}{Number\ of\ times\ coin\ thrown}

0.4=\frac{200}{x}

<em>By cross multiplying we get:</em>

0.4x=200

<em>Dividing both sides by 0.4 we get:</em>

x=500.

Therefore, the number of times coin thrown was 500.

7 0
3 years ago
Read 2 more answers
Some body help me thanks?
r-ruslan [8.4K]
Over is to under





Think about is the oopsite
7 0
3 years ago
What's the 7th term in the geometric sequence
Marta_Voda [28]
a_{7} = 2 \times 5^{7 -1} = 2 \times 5^{6} = 2 \times 15,625 = 31,250
4 0
3 years ago
Zach and Ginny are building model cars. Ginny's car is 2 more than 3 times the length of Zach's car. The sum of the lengths of b
Neporo4naja [7]

Answer:

x+(3x+2)=30

Step-by-step explanation:

Let

x ----> the length of Zach's car

y ----> the length of Ginny's car

we know that

The sum of the lengths of both cars is 30 inches

so

x+y=30 ----> equation A

Ginny's car is 2 more than 3 times the length of Zach's car

so

y=3x+2 ----> equation B

substitute equation B in equation A

x+(3x+2)=30

8 0
3 years ago
Solve for ,×. Then, circle whether each angle pair is complementary or supplementary.​
Svet_ta [14]

See the solution above..☝☝

HOPE THIS WILL HELP!!!

<h3>PLZZ PLZZ MARK ME BRAINLIEST!!</h3>

6 0
3 years ago
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