3 years ago

Y varies directly as x and y = 10 when x =2.5 find y if x y = 80 cm.

Mathematics

1 answer:

densk [106]3 years ago

6 0

If y = 80, x = 20

Hope this helps.

You might be interested in

Please I need help ASAP

artcher [175]

This is an exponential table

4 0

3 years ago

The hypotenuse of a 45°-45°-90° triangle measures 8 inches. What is the length of each leg?

LenaWriter [7]

Answer:

4.24, the hypotenuse is each leg multiplied by root 2, so you divide 6 by the root of 2

Step-by-step explanation:

4 0

3 years ago

Write the fraction as an 1/15 equivalent fraction with a denominator of 45.

Readme [11.4K]

9514 1404 393

Answer:

3/45

Step-by-step explanation:

To find the numerator, multiply the desired denominator by the fraction.

x/45 = 1/15

x = (45)(1/15) = 45/15 = 3

The equivalent fraction is 3/45.

5 0

2 years ago

What is the equation of this line?

elena-14-01-66 [18.8K]

Answer:

A) y = 4/3 x - 1/3

Step-by-step explanation:

(4,5) and (-2,-3)

Slope = (5 + 3)/(4 + 2)

= 8/6

= 4/3

Equation

y + 3 = 4/3(x + 2)

y + 3 = 4/3 x + 8/3

y = 4/3 x + 8/3 - 9/3

y = 4/3 x - 1/3

Answer:

y = 4/3 x - 1/3

8 0

3 years ago

Which represents the inverse of the function f(x) = 4x?

nekit [7.7K]

Answer:

$\displaystyle h(x) = \frac{1}{4}x$

Step-by-step explanation:

Sinse in this case you are dealing with direct variation, all you are doing is taking the multiplicative inverse of 4, which is ¼:

$\displaystyle f(x) = 4x \rightarrow f^{-1}(x) = \frac{1}{4}x$

This option is not an answer choise. Perhaps there was a typographical errour.

I am joyous to assist you at any time.

5 0

2 years ago