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Delicious77 [7]
3 years ago
5

A 80-milliliter solution of a fabric dye contains 4 ml of hydrogen peroxide. What is the percent concentration of the hydrogen p

eroxide?
Mathematics
1 answer:
fgiga [73]3 years ago
6 0

Answer:

idk

Step-by-step explanation: good luck

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Tiffany earns an annual income of $55,000. After she pays taxes, her take home pay is $41,800. What
SVETLANKA909090 [29]

Answer:

24%

Step-by-step explanation:

Taxes

t = 55000 - 41800

t = 13200

% tax

p = 13200/55000 * 100

p = 24%

5 0
2 years ago
adult tickets at a football game cost $6 and student tickets cost $2. A total of $1776 was collected on 372 tickets. How many ad
postnew [5]

Answer:

258

Step-by-step explanation:

Set up the two equations needed (x is the adult tickets and y is the student tickets)

x+y=372

6x+2y=1776

Solve by elimination

-2(x+y=372)

=-2x-2y=-744

Cancel like figures:

-2x-2y=-744

6x+2y=1776

= 4x=1032

x=258

6 0
2 years ago
Read 2 more answers
Two groups of tourists are on the same floor of a skyscraper they are visiting, and they board adjacent elevators at the same ti
Mariulka [41]

Let time be x distance be y

  • 140x=y-(1)
  • 290x=360-y-(2)

Put value in eq(2)

\\ \rm\longmapsto 290x=360-(140y)

\\ \rm\longmapsto 440x=360

\\ \rm\longmapsto x=1.2min

Put it in eq(1)

  • d=1.2(140)=168m
7 0
2 years ago
g Disco Fever is randomly found in one half of one percent of the general population. Testing a swatch of clothing for the prese
Marizza181 [45]

Answer:

The probability that the result is positive is P=0.04475=4.475%.

Step-by-step explanation:

We have the events:

D: disease present

ND: disease not present

P: test positive

F: test false

Then, the information we have is:

P(D)=0.005

P(P | D)=0.99

P(P | ND)=0.04

The total amount of positive test are the sum of the positive when the disease is present and the false positives (positive tests when the disease is not present).

P(P)=P(P | D)*P(D)+P(P | ND)*(1-P(D))\\\\P(P)=0.99*0.005+0.04*0.995\\\\P(P)=0.00495+0.0398=0.04475

The probability that the result is positive is P=0.04475.

5 0
3 years ago
62% of what number is 186
ra1l [238]

Answer:

300

Step-by-step explanation:

Let the number be X

62/100 × X = 186

X = 186 × 100/62

X = 300

7 0
3 years ago
Read 2 more answers
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