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Alexxx [7]
3 years ago
5

if a girl worked for 5 hours a day and gets payed $9 dollars an hour how many hours does she have to work to get 2,000 dollars

Mathematics
2 answers:
sergeinik [125]3 years ago
6 0

idk the answer answer but its in between 223 and 222 hours cuz for 222 i got 1998 but for 223 its 2007 hopefully it helps

kupik [55]3 years ago
4 0

Answer:

222 2/9 hours

Step-by-step explanation:

Income = hours * dollars per hours

We need an income of 2000

We get $9/ hour

Substitute in what we know

2000 =  hour * $9

Divide by 9 on each side

2000/9 = hours

222.222(repeating) = hours

222 2/9 hours

If we want to know how many days, we will divide by 5 since she works 5  hours a day

222 2/9 ÷5

44 4/9 days

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Do you mean (2/3) times 3X or is x a multiplication symbol
8 0
3 years ago
What is the solution of 5 = t/2 -3?
Sladkaya [172]

Answer:

t=16

Step-by-step explanation:

you have to change the numbers to get just the variable.

we start from -3.

5=t/2-3

8=t/2

(we multiply by 2 instead of dividing)

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5 0
3 years ago
Military radar and missile detection systems are designed to warn a country of enemy attacks. A reliability question deals with
Nadusha1986 [10]

Answer:

Step-by-step explanation:

Given that a particular detection system has a 0.83 probability of detecting a missile attack.

Also each system is independent of the other to detect missile attack.

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b) the probability that at least one of the systems will detect the attack given two systems= 1-Prob no system detects

=1-(1-0.83)(1-0.83)\\\\=1-0.0289\\=0.9711

c)  If three systems are installed,  the probability that at least one of the systems  will detect the attack

= 1- none of the three systems detect attack

= (1-0.17^3)\\=1-0.004913\\=0.995087

d) We find that probability of detecting is more if we increase the system form 1 to 2 and 2 to 3.

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7 0
3 years ago
Please solve each equation & check your solution. Thank You!
Deffense [45]

Answer:

G). 1.2x + 7.92 -3.3x = 41

-2.1x=33.08

x = 33.08/-2.1

x = - 15.752

H). 3x/2 + 9/5 = 12

Multiply through by 10

15x + 18 =120

15x =120-18

15x = 102

x =102/15

x=34/5

I). 5 = 9/4 - r/3

Multiply through by 12

60= 27 - 4r

60 - 27 = -4r

33 = - 4r

r = -33/4

J). 2(x - 2) = 12

2x - 4 = 12

2x = 16

x = 16/2

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8 0
3 years ago
A STORY OF RATIOS
larisa86 [58]

Answer:

dddadad

Step-by-step explanation:

7 0
3 years ago
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