Answer:
Step-by-step explanation:
![\displaystyle Average = \frac{Sum \ of \ marks \ on\ tests}{Number \ of \ tests} \\\\Avg = \frac{75 + 72+63}{3} \\\\Avg = \frac{210}{3} \\\\\boxed{Avg = 70}\\\\\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20Average%20%3D%20%5Cfrac%7BSum%20%5C%20of%20%5C%20marks%20%5C%20on%5C%20tests%7D%7BNumber%20%5C%20of%20%5C%20tests%7D%20%5C%5C%5C%5CAvg%20%3D%20%5Cfrac%7B75%20%2B%2072%2B63%7D%7B3%7D%20%5C%5C%5C%5CAvg%20%3D%20%5Cfrac%7B210%7D%7B3%7D%20%5C%5C%5C%5C%5Cboxed%7BAvg%20%3D%2070%7D%5C%5C%5C%5C%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3>
Slope intercept form is y = mx + b.
Basically we need to get y by itself with no numbers attached.
4x - 5y = -20 subtract 4x from both sides
-5y = -4x - 20 divide each term on both sides by -5
y = (4/5)x + 4
hope this helps C:
In 56.6 earth days , it rotates 1 time
so, in 1 earth day , it will rotate
times
now, In a earth year, there are 365 days.
So, in 365 earth days, it will rotate =
Alright so to do this you need some basic algebra
you have to pay an extra 20% of whatever you buy
thus we can make the following equation
.2x+x=20 (since 20 is the amount of money you have)
combining the like terms,
1.2x=20
and finally, dividing both sides by 1.2
x=$16.67
don't forget to check!
.05*16.67=.83 (sales tax makes the total $17.5)
.15*16.67=2.5 (tip makes the total $20)
whaddya you know, it works!
most expensive item you can buy will cost $16.67
hope this helped!
You will need half of the circle with radius of 15 inches.
Area of semi-circle = (<span>πr^2)/2 = 353.25 x $1.40 = $494.55 </span>
