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Elza [17]
2 years ago
10

Keisha needs to save $331. To earn money she plans to babysit and charge $11 per hour. Write two estimates Keisha could use to d

etermine how many hours she needs to babysjt
Mathematics
2 answers:
Alona [7]2 years ago
5 0
I was about to say that
Maru [420]2 years ago
4 0
M=11h, let M=331
so 331/11=h
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Of the 80 boys polled at lunch, 55% say they play video games daily. According to the poll, how many boys play video games daily
alexdok [17]

55% = \frac{55}{100} = \frac{11}{20}

Multiply \frac{11}{20} by 80 and you will get how many boys play video games daily.

\frac{11}{20}*80=\frac{11}{1}*4=11*4=44

44 is the number of boys who play video games daily.

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3 years ago
Tell me what i did wrong.
ser-zykov [4K]

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Step-by-step explanation:

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Answer:

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3 years ago
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3 years ago
Please help with math question
Naddik [55]
1- Solution using graphs:
Take a look at the attached images.
The red graph represents the first given function while the blue graph represents the second given function.
We can note that the two graphs are the same line (they overlap).
This means that any chosen point on one of them will satisfy the other.
This means that there are infinite number of solutions to these two equations.

2- Solution using substitution:
The first given equation is:
y = -5x + 3 ...........> equation I
The second given equation is:
2y + 10x = 6 ...........> equation II

Substitute with I in II and solve as follows:
2(-5x+3) + 10x = 6
-10x + 6 + 10x = 6
0 = 0
This means that there are infinitely many solutions to the given system of equations.

Hope this helps :)

3 0
2 years ago
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