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3 years ago

Determine whether y varies directly with x. If so find the constant of variation k and write the equation.

2 answers:

8 0

There seems to be a direct relationship, as an increase an x results in an increase in y, but we can check if:
y = kx

11 = 7k, k = 1.57
13 = 8k; k = 1.62
15 = 9k; k = 1.67
17 = 10k; k = 1.70

As we can see, the variation is not constant so this is not a simple direct relation.

ludmilkaskok [199]3 years ago

6 0

Answer:

11 = 7k, k = 1.57

13 = 8k; k = 1.62

15 = 9k; k = 1.67

17 = 10k; k = 1.70

Step-by-step explanation:

There seems to be a direct relationship, as an increase an x results in an increase in y, but we can check if:

y = kx

11 = 7k, k = 1.57

13 = 8k; k = 1.62

15 = 9k; k = 1.67

17 = 10k; k = 1.70

Y does not have an direct variation with x.

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3 years ago

What is the value of n interior answer in the Box

Nastasia [14]

We know that

The Intersecting Chord Theorem, established that "When two chords intersect each other inside a circle, the products of their segments are equal."
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3 years ago

Which is the best estimate of 11 1/5 divided by 2 3/4? . 4 .6 .22 .33

Tanzania [10]

Answer:

4.07

Step-by-step explanation:

11 1/5 divided by 2 3/4

= 11 1/5 ÷ 2 3/4

= 56/5 ÷ 11/4

= 56/5 × 4/11

= (56*4) / (5*11)

= 224/55

= 4.07

The best estimate of 11 1/5 divided by 2 3/4 is 4.07

3 0

3 years ago

20 balloons have to be devided between a group A and Group B in the ratio 2:3. How many balloons will each group receive?

AVprozaik [17]

Answer:

There are 8 and 12 balloons for groups A and B, respectively.

Step-by-step explanation:

The ratio 2 : 3 means that there are 2 balloons in group A for each 3 balloons in the group B. The amounts of balloons asigned to each groups are determined by the following formulas:

Group A

$n_{A} = \frac{2}{2+3}\cdot (20)$