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Inessa05 [86]
2 years ago
8

A school survey reported that

Mathematics
1 answer:
kozerog [31]2 years ago
6 0

The probability that the student has  a part-time job, given that they  have a cell phone is 5/8

<h3>What is probability</h3>

Probability is the likelihood or chance that an event will occur.

Given the following parameter:

  • Total student = 80%
  • Part-time jobs = 45%
  • Those with both a cell phone  and a part-time job = 30%

Student will cellphone only = 80 - 30 = 50%

The probability that the student has  a part-time job, given that they  have a cell phone is 50/80 = 5/8

Learn more on probability here: brainly.com/question/25870256

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X/z+y^2-x evaluate where x=-2 y=4 and z=16
lozanna [386]

Answer:

Solution

X=-2

y=4

z=16

then,

-2/16+16×16--2

=257.875

4 0
2 years ago
A pharmacist wishes to mix a solution that is 6% Minoxidil. She has on hand 100 ml of a 2% solution and wishes to add some 8% so
son4ous [18]

Answer:

200 ml

Step-by-step explanation:

It's proportions basically.

frst off, 2% of 100 ml is 2 ml, so the 100 ml solution has 2 ml of Minoxidil.

Eventually we want 6/100 to be the porportion.  so the total is going to be 100 (from the initial 100 ml) plus however much is needed x.  And we want the amount of Minoxidil to be 2 + 8 percent of x.  so this gets us the equation

6/100 = (2 + .08x)/(100+x)  Then we solve

(100 + x) 6/100 = 2 + .08x

(100 + x) 6 = 200 + 8x

600 + 6x = 200 + 8x

400 = 2x

x = 200

so they should add 200 ml

You can check too.  there is 100 + 200 ml of solution total and 2 + 16 ml of Minoxidil so that's 18/300 = 6/100

6 0
3 years ago
What is 11 divided by 12 as a fraction
svlad2 [7]
11/12 as a fraction is 11/12; as a decimal it is ~ 0.9167
3 0
3 years ago
Explain what a, h, and k do to transform the following equation. Be sure to mention the shift or transformation each variable do
dangina [55]

Answer:

a: vertical stretch

h: horizontal translation (remember not to get signs mixed up!)

k: vertical translation

3 0
2 years ago
Read 2 more answers
9&gt; -2m + 2 - 3
Tanya [424]

Answer:

A

Step-by-step explanation:

Given

9 > - 2m + 2 - 3, that is

9 > - 2m - 1 ( add 1 to both sides )

10 > - 2m

Divide both sides by - 2, reversing the symbol as a result if dividing by a negative quantity.

- 5 < m , thus

m > - 5 → A

6 0
3 years ago
Read 2 more answers
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