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sergejj [24]
3 years ago
5

Suppose that y varies directly with x and y= 5 when x= 6. What is y when x= 5?

Mathematics
1 answer:
GenaCL600 [577]3 years ago
8 0
If y and x vary on one another and if we suppose y=5 and in relation x=6 then when x=5 y should be 4
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Frank bought 18 water bottles and 28 candy bars for a reunion. Water bottle cost 1.80 for a six pack. Candy bars cost 4.20 for 6
iogann1982 [59]

Answer:

$17.60

Step-by-step explanation:

Let’s start by first finding the cost of 1 candy bar. We have to divide 1.80 by 6 to find the cost of 1 water bottle and 4.20 divided by 6 to find the cost of 1 candy bar. 1 water bottle= 30 cents (0.3) and 1 candy bar= 70 cents (0.7). Now, to find how much he spent on 18 water bottles we must multiply 18 by 0.3 which = $60 and multiply 28 by 0.7 = $19.60 (19.6). Now add 19.60 + 60 = 79.60 (79.6)

So, Frank spent $79.60 on food total. Sorry if I got it wrong, but hope this helps!

6 0
3 years ago
What is 9% converted to a fraction
Genrish500 [490]

Answer:

9/100

Step-by-step explanation: whatever percentage over 100 is the fraction of a percentage

7 0
3 years ago
Read 2 more answers
What is (x+2) times 1 over x ???
Colt1911 [192]

Answer:

(x + 2)/x

Step-by-step explanation:

(x + 2) × 1/x

= (x + 2)/x

4 0
3 years ago
Solve the following systems of 3-variable linear equations.​<br><br><br><br>50 points
Natali [406]

Answer:

x = 9/25

y = 7/25

z = 4/25

Step-by-step explanation:

2x + y = 1 .......(1)

3y + z = 1 ........(2)

x + 4z = 1 ........(3)

Elimination 1 and 2

2x + y = 1 | ×3 |

3y + z = 1 | ×1 |

6x + 3y = 3

3y + z = 1

___________--

6x - z = 2 .............. (4)

Elimination 3 and 4

x + 4z = 1 | ×6 |

6x - z = 2 | ×1 |

6x + 24z = 6

6x - z = 2

___________--

25z = 4

z = 4/25

Elimination 3 and 4

x + 4z = 1 | ×1 |

6x - z = 2 | ×4 |

x + 4z = 1

24x - 4z = 8

___________+

25x = 9

x = 9/25

Subsitution 1

2x + y = 1

2(9/25) + y = 1

18/25 + y = 1

y = 1 - 18/25

y = 25/25 - 18/25

y = 7/25

7 0
3 years ago
Help on this problem
GREYUIT [131]
0.77(13.50×40)= 415.8
The answer is $415.8

Hope this helps :)
6 0
3 years ago
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