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Setler [38]
3 years ago
15

Melissa believes the following graph shows direct variation. What is Melissa’s error?

Mathematics
2 answers:
balu736 [363]3 years ago
7 0
Hi there!

The function doesn't pass through the origin.

Any direct variation function must pass through the origin.

Hope this helps!
yawa3891 [41]3 years ago
6 0

Answer:

Option C.

Step-by-step explanation:

Melissa believes the following graph shows direct variation.

We need to find Melissa’s error.

If a variable y directly proportional to x, the

y\propto x

It can be written as

y=kx

where, k is constant of proportionality.

It is a linear function with slope k and it passes through the origin.

From the given graph it is clear that the function is a straight line, it means the graph is a linear function and the rate change is constant.

But, it does not pass through the origin. So, the given graph does not represent the direct variation.

Therefore, the correct option is C.

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Answer:

d

Step-by-step explanation:

3 0
3 years ago
Maddie bought 3 2/3 yards of satin ribbon at the craft store. She wanted to make hair bows for the cheer squad. Each bow require
kotegsom [21]

Answer:

4

Step-by-step explanation:

Given that:

Total yards of satin bought by Maddie = 3\frac{2}{3} yards

Number of yards required make one ribbon = \frac{2}{3} yards

To find:

Number of complete bows that can be made ?

Solution:

First of all, let us learn about converting the mixed fraction to fractional form.

Formula:

a\dfrac{b}{c} = \dfrac{a\times c+b}{c}

Therefore, total yards of satin bought by Maddie can be written in fractional form as:

3\dfrac{2}{3} = \dfrac{3\times 3+2}{3} = \dfrac{11}{3}

One hair bow requires \frac{2}{3} yards of ribbon.

Number of hair bows that can be made, can be found by dividing the total ribbon length by ribbon required for making one hair bow.

Answer is:

\dfrac{\frac{11}{3}}{\frac{2}{3}}\\\Rightarrow \dfrac{11\times 3}{2\times 3}\\\approx 4

4 hair bows can be made.

4 0
2 years ago
A collection of 108 coins containing only quarters and nickels is worth $21.
Rudiy27

Answer:

The value could replace q is 108 - n ⇒ the last answer

Step-by-step explanation:

* Lets study the values of quarters and nickles

- One quarter = 25 cents

- One nickle = 5 cents

- The number of coins is 108

- The coins are nickles or quarters only

- The coins worth $ 21

* Lets solve the problem

∵ The number of coins is 108 coins

- Let the quarter is q and the nickel is n

∴ q + n = 108 ⇒ (1)

∵ The coins worth $21

∵ $ 1 = 100 cents

∴ $21 = 21 × 100 = 2100 cents

∵ The quarter = 25 cents

∵ The nickels = 5 cents

∴ 25q + 5n = 2100 ⇒ (2)

- To find the value which replace q use equation (1)

∵ q + n = 108 ⇒ subtract n from both sides

∴ q = 108 - n

* The value could replace q is 108 - n

3 0
3 years ago
Read 2 more answers
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Damm [24]

Answer: the answer is 8

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7 0
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Zoey is a waitress at a restaurant. Each day she works, Zoey will make a guaranteed wage of $35, however the additional amount t
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2 years ago
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