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Tresset [83]
3 years ago
9

A chemist is using 331 milliliters of a solution of acid and water. If 15.5% of the solution is acid, how many milliliters of ac

id are there?
Round your answer to the nearest tenth
Mathematics
2 answers:
Arisa [49]3 years ago
8 0

%volume

\tt ml\:acid=15.5\%\times 331\:ml=51.305\:ml\\\\round~to~the~nearest~tenth=51.3~ml

Helen [10]3 years ago
8 0
4 because of your parents you can’t stop to get your phone call stop
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Twenty-five members of the eighth grade class at Park Center Middle School are going to a museum and then to lunch. Each student
Damm [24]
There are two costs involved:

1) the cost for lunch, which is given as a rate per student: $7.25/student

2) the cost for the trip which is $443.75 to be divided by the 25 students, so it is $443.75 / 25 = $17.75/student

Now, you can add up those two costs per student to have the total cost per student:

$7.25 + $17.75 = $25.00/student

Answer: $25.00
5 0
4 years ago
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What is 33.153 rounded to the nearest tenth?
EastWind [94]

Answer:

33.15 that is the answer

5 0
3 years ago
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Hello can someone try and help me
lyudmila [28]

Answer:

f(x)=-4x+/4

let y=f(x)

y=-4x+4

interchange the role of x & y

x=-4y+4

x-4=-4y

(x-4)/-4=y

y=-(x-4)/4

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4 0
3 years ago
A machine produces defective parts with three different probabilities depending on its state of repair. If the machine is in goo
Zina [86]

Answer:

Step-by-step explanation:

Given that a machine produces defective parts with three different probabilities depending on its state of repair.

condition             Good order         Wearing down               Needs main   Total

Prob                       0.8                            0.1                                   0.1              1

Defective               0.02                          0.1                                   0.3

Joint prob              0.016                         0.01                                0.03        0.056

a) 0.016

b) total = 0.056

c) If not defective from needs maintenance

Prob for not defective = 0.8*0.98+0.1*0.9+0.1*0.7\\=0.784+0.09+0.07\\=0.944

From machine that needs maintenance = 0.07

So reqd prob = \frac{0.07}{0.944} \\=0.0741

6 0
4 years ago
What's 6 c ^ 2 + 2.5 D - D + 2C ^ 2 - 3D what is that simplified
adell [148]

I'm assuming that the lower case c and the upper case C are the same variables.

6C^2 + 2.5D - D + 2C^2 - 3D = 8C^2 - 1.5D

4 0
4 years ago
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