Answer:
perimeter=40
area=80
Step-by-step explanation:
(I am solving without the area of a trapezoid formula btw)
convert 2/3ft to inches so 8in
then find the length adjacent to 8in (2/3ft) so we will use the Pythagorean theorem a^2+8^2=10^2
a^2+64=100
a^2=36
a=6
now lets find the area for the triangle and the one on the right side.
(8*6)/2=24
24+24=48
the combined area of both triangles is 48 so we are left off with a rectangle
8*4=32
32+48=80
the perimeter will be 10+10+4+16=40
Answer:
1. Isolate
2. Closed
3. Reversed
If you have more problems with things similar to this, I recommend this website, it gives a detailed description on how to solve the equations:
https://www.mathsisfun.com/algebra/inequality-solving.html
Answer:
5.5 years aka 5 years 6 months
Step-by-step explanation:
x over 3330
then 2 over 100
2x3000= 6000/100=60
3330-3000=330
330/60=5.5
Answer:
<h2>18.750kg</h2>
Step-by-step explanation:
If a mass of 2.5 grams costs a penny, we want to know the amount of mass that will cost $75. Before we get the mass, we need to convert 75 dollars to penny. Using the conversion:
$1 = 100pennies
$75 = (75*100)pennies
$75 = 7,500 pennies
Using the law of equivalence
1 penny = 2.5 grams
7,500pennies = x grams
Cross multiply
1 * x = 2.5 * 7500
x = 18,750 grams
Hence 18,759 grams will cost $75
Converting grams to kilograms
If 1000 grams = 1kg
18,750grams -= y
cross multiply
1000*y = 18750
Divide both sides by 1000
1000y = 18750/1000
y = 18.750kg
<em>Hence the amount in kilogram of $75 coin in pennies is 18.750kg</em>
