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topjm [15]
3 years ago
13

which of the following equation as that of a line, a circle, an ellipse, a parabola, or a hyperbola is xy=4

Mathematics
2 answers:
Vitek1552 [10]3 years ago
7 0
Try this option:
according to the equation it is a hyperbola.
The graph of this function is attached.

horsena [70]3 years ago
4 0
It's a hyperbola. The formula should be transformed into y = 1/x.

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Will someone please help me here
stealth61 [152]

You would use unit rate for this. If Austin makes $209 in 11 hours, then he makes 209/11 = 19 dollars in 1 hour.

Then, we can make a proportion:

$19/1 hour = $152/ x hours

Cross multiply:

152 = 19x

Solve for x to get:

x = 8 hours.

6 0
3 years ago
Read 2 more answers
A customer desires to mix her own concrete. The clerk knows that the ratio of cement to sand to gravel is 1:3:4. If the customer
Aleks [24]

Answer:

The quantity of cement use is 125 pounds

The quantity of sand use is 375 pounds

The quantity of gravel use is 500 pounds

Step-by-step explanation:

Given as :

The ratio of cement to sand to gravel = 1 : 3 : 4

The total quantity of dry mix required = 1000 pounds

Let The quantity of cement required = 1 × x pounds

The quantity of sand required = 3 × x pounds

The quantity of gravel required = 4 × x pounds

So, According to question

The total quantity of dry mix required = The quantity of cement required + The quantity of sand required + The quantity of gravel required

Or, x + 3 x + 4 x = 1000 pounds

Or, 8 x = 1000 pounds

∴  x = \frac{1000}{8}

I.e x = 125

So , The quantity of cement required = 1 × 125 pounds = 125 pounds

The quantity of sand required = 3 × 125 pounds = 375 pounds

The quantity of gravel required = 4 × 125 pounds = 500 pounds

Hence The quantity of cement use is 125 pounds

The quantity of sand use is 375 pounds

The quantity of gravel use is 500 pounds

Answer

8 0
3 years ago
Find profit or loss %<br> A) cp= 150 and profit =250
Anon25 [30]

Answer:

166⅓ %

Step-by-step explanation:

250/150 × 100

500/3 = 166⅓ %

Or 166.67%

7 0
3 years ago
Solve 2x − z = 4y + 2 for x
alina1380 [7]

Answer:

x = 2y + 1 + (z/2)

Step-by-step explanation:

Just manipulate the equation to isolate x.

4 0
3 years ago
Mark buys last year's best-selling novel, in hardcover, for $23.20. This is with a 20% discount from the original price. What wa
Gelneren [198K]

Answer:

29

Step-by-step explanation:

Let x be the original price.

( 1 - 20% ) x = 23.2

0.8x = 23.2

\frac{0.8x}{0.8}  =  \frac{23.2}{0.8}

x = 29

8 0
3 years ago
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