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valkas [14]
3 years ago
9

Which of the following equations shows direct variations a) y= x/3 + 1 B) y= 3x c) Y=3/x

Mathematics
1 answer:
Korolek [52]3 years ago
7 0
A) Not a direct variation since it is not in the form y = k*x
B) is a direct variation since it is in the form y = k*x where k = 3
C) Not a direct variation. This is an inverse variation since it is in the form y = k/x

Answer: Choice B only
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What is the smallest number that can be added to 1923 to make the answer divisible by 9?
Stolb23 [73]

Answer:

3

Step-by-step explanation:

1926/9=214

1923+3=1926

7 0
3 years ago
You are on a limited budget and planning a four day camping trip to a national park. bus fare is 75 dollars each way and the rid
Schach [20]

Considering that you are planning the trip with limited budget and only for 4 days (=96h) you must value both time and money when doing it.

If you use the bus you spend $75 + $75=$150 and 12h + 12h = 24h. This means you spend $150 to enjoy 96h - 24h = 72h of actually camping. This means you pay $150/72h = $2,08 per hour of actual camping.

On the other hand if you choose the plane you spend $150 + $ 150 = $300 and 1,5h + 1,5h = 3h. This means you spend $300 to enjoy 96h - 3h = 93h. This means you pay $300/93h = $3,22 per hour of actual camping.

Considering all that, taking the bus his the most cost-effective option (and the cheaper one also).

6 0
3 years ago
Please help ASAP! I’d appreciate it! :)
posledela
The answer is the third one :)
3 0
3 years ago
Determine the zero of F(x)=x^2+3x-5
IgorLugansk [536]

Answer:

The answer to your question is:

Step-by-step explanation:

                                             x² + 3x - 5

                                    x² + 3x + (3/2)² = 5 + (3/2)²

                                         (x + 3/2)² = 5 + 9/4

                                         (x + 3/2)² = (20 + 9) /4

                                          (x + 3/2)² = 29/4

                                          x + 3/2 = ±√29 / 2

                                     

x 1 = -3/2 + √29/2                               x2 = -3/2 - √29/2

x1 = 1.19                                                x2 = -4.19

3 0
3 years ago
the student to teacher ratio is 15:3. if there are 90 teachers at the school, how many students are there
mixas84 [53]
15x+3x=90\\
18x=90\\
x=5\\\\
15x=15\cdot5=\boxed{75}
8 0
3 years ago
Read 2 more answers
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