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3 years ago

Which equation represents a direct variation? y = 2x y = x + 4 y =1/2x y = 3/x

Mathematics

2 answers:

deff fn [24]3 years ago

8 0

Answer:

The first equation is a direct variation. This type of equation has a form that is "y = kx," in which k is the constant. Changing both sides by a common multiple will still lead to the equation being evaluated as true, since the values will both increase by that multiple.

Step-by-step explanation:brainlist?

algol133 years ago

8 0

Answer:

Step-by-step explanation:

edge

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Please Help! 20 Points!

ExtremeBDS [4]

Answer:

The best estimate is 6

Step-by-step explanation:

1. Convert 1 3/4 to a whole fraction

7/4

2. Reciprocate 7/4

4/7

3. Multiply 90/7 by 4/7

360/49

4. Simplify/Solve

7.3

5. The best estimate is 6

If I am wrong please forgive and tell me in the comment section below otherwise bu-bye.

8 0

3 years ago

This weekend Vanessa made 4 times as many batches as last weekend. She made a total of 25 batches for the two weekends. Determin

MissTica

Answer: The number of batches made by Vanessa last weekend = 5

Number of batches made this weekend =20

Step-by-step explanation:

Let x be the number of batches made y Vanessa last weekend.

Given : This weekend Vanessa made 4 times as many batches as last weekend.

i.e. Number of batches made this weekend = 4x

She made a total of 25 batches for the two weekends.

i.e. $x+4x=25$

$\Rightarrow\ 5x=25$

Divide both sides by 5 , we get

$x=5$

i.e. number of batches made y Vanessa last weekend = 5

Number of batches made this weekend =20

Hence, the number of batches made by Vanessa last weekend = 5

Number of batches made this weekend =20

7 0

3 years ago

Which equation represents a line that has a slope of -1/2 and passes through point (4,-5)?

julsineya [31]

Its the last one....y = -1/2x - 3

7 0

4 years ago

raghu bought 80 oranges at 3Rs per orange. he sold 30% oranges at 5Rs each and remaining oranges at the rate of 3Rs each. find h

Veronika [31]

Answer:

20% Profit percentage

Step-by-step explanation:

Since Raghu bought 80 oranges at 3Rs each, his total expense (E) is:

$E= 80*3 = 240$

Now for his earnings, he sold 30% of the oranges for 5Rs each and 70% for 3Rs each. Therefore, his earnings are represented by the following expression:

$P = 80*0.3*5 + 80*0.7*3\\P=288$

His profit percentage (%) can be found as follows:

$\%= \frac{P - E}{E}*100\\\\\%= \frac{288 - 240}{240}*100\\\%= 20\%$

5 0

3 years ago

Im not too sure what I supposed to be doing at all

MrRissso [65]

Answer:

I dont know Ethier ask a teacher or sum gang

3 0

3 years ago