The individual should work 28 hours to earn $630 at a rate of $22.50 per hour.
Direct variation formula is y = kx;
Where y directly varies on the changes of x with the constant ratio of k.
We need to first get the k or constant rate.
y = kx
900 = k (40)
k = 900 / 40
k = 22.50 this is the rate per hour
To check:
900 = 22.50 * 40
900 = 900
y = 22.50x
630 = 22.50x
x = 630 / 22.50
x = 28 hours.
To check:
630 = 22.50 * 28
630 = 630
Answer:
because x,y,z are in continuous proportion
=> x/y = y/z
<=> xz = y² =>
(1)
with (1), we have:
Step-by-step explanation:
You need to round 6.018 to 6 then multiply it by 9 which results in 54!
<span>You divide the top of the fraction by the bottom and t<span>hen multiply it by 100.
Example : 1/4
-you do 1 divied by 4 = 0.25
-then you mutiply 0.25 by 100
-and you will get : 25%
-Hope this helps.</span></span>
