3 years ago

Z varies jointly with x and y. when x=2 and y=3, z=60. what is the value of z when x=4 and y=9?

1 answer:

3 0

<span>Z $ xy then Z = Kxy. When x = 2 and y = 3, and Z = 60, our constant of variation becomes 60 = K * 2 * 3 K = 10. Our constant of proportionality equals 10. We would need that in the second part of the equation. When x = 4 and y = 9, we have Z = 10 * 4 * 9 = 360</span>

You might be interested in

PLEASE HELP

mihalych1998 [28]

Don’t use that link!! They always comment under my stuff and other people have told me that’s just to get your information and location and stuff like that! Be safe and have a nice day

5 0

2 years ago

Solve (9^5/9^3) Please show steps along with it

Luda [366]

9^5 is 9*9*9*9*9 you * 9 by how ever many little number there is so you get 59049
and with 9^3 its 9*9*9 729
its NEVER 9*3 or 9*5 you have to times the same number () time the littler number it telling you how many time to do so

3 0

3 years ago

3 hamburgers cost $7.50 altogether. what is the price of 1 hamburger?

kari74 [83]

Answer:

2.5 dollars

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What does changing the h variable do to the graph of a quadratic function

deff fn [24]

Changing the h value will move the graph horizontally left or right.

5 0

3 years ago

With a coupon, you can get a pair of shoes that normally costs $84 for only $72. What percentage was the discount?

zhenek [66]

Answer:14.3

Step-by-step explanation:

Hope this helps ツ

4 0

2 years ago