3 years ago

The graphs of the equations Ax + By =15 and Ax - By =9 intersect at (2, 1). Find A and B. Show or explain your reasoning

Mathematics

1 answer:

iVinArrow [24]3 years ago

5 0

Hi here’s the answers hope this helps

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Find the constant of variation k for the inverse variation. Then write an equation for the inverse variation. y = 2.5 when x = 9

Ahat [919]

1. k = 22.5
2. xy=k

thats what i got

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3 years ago

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What is: 6x^2-4x-10?

abruzzese [7]

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An ancient culture had a solar calendar with a 365 day cycle and a religious calendar with a 292 day cycle. If the calendars bot

Scrat [10]

Make the Least common multiple (LCM) of 365 and 292:

$365, 292 | 5$
$73, 292 | 2$
$73, 146 | 2$
$73, 73 | 73$
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Answer:
$\underline{1460\:days\:will\:they\:next\:coincide}$

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3 years ago

The value of y varies directly with x, and y = 48 when x = 16. Find y when x = 176.

emmainna [20.7K]

Try to find what y is when x is equal to one.

48/16= 3

So, when x is 1, y is 3.

(1,3)

All you need to do is multiply 176 by 3 for the correct value of y.

176*3= 528

When x= 176, y= 528. (176,528)

I hope this helps!
~cupcake

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Today, everything at a store is on sale. The store offers a 20% discount. The regular price of a shirt is $14. What is the disco

USPshnik [31]

Answer:

$11.20

Step-by-step explanation:

The regular price of the T-Shirt is $14 dollars. The discount is 20% off.

20 percent of 14:

14 * 0.2 = 2.80

You would save $2.80.

14 - 2.80 = 11.20

The discount price should be $11.20.

Hope this helps.

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3 years ago