The length of the wingspan of the finished model based on the dimensions of the kit is 0.75 feet
Given:
Kit
Plane = 27 feet
wingspan = 18 feet
Model:
Plane = 13.5 inches
Wingspan = x feet
convert 13.5 inches to feet
1 feet = 12 inches
13.5 inches = 1.125 feet
So,
equate Ratio of plane to wingspan
27 : 18 = 1.125 : x
27/18 = 1.125 / x
cross product
27 × x = 18 × 1.125
27x = 20.25
x = 20.25/27
x = 0.75 feet
Therefore, the length of the wingspan of the finished model based on the dimensions of the kit is 0.75 feet
Learn more about ratio:
brainly.com/question/1781657
8.75%
25x1.5=37.5
40.78/37.5= 1.0875
Subtract the 1 off for the product cost and it leaves 0.0875 for the tax
Answer:
15549 yrs old
Step-by-step explanation:
To find the decay constant r we use the formula
t1/2 = 0.693/r
t1/2 is the half-life 5700
5700 = 0.693/r
r = 0.693/5700 = 0.000122 per sec
For the 15% remaining from an initial value of 100%, time t is calculated from
N = Noe^(-rt)
0.15 = 1e^(-0.000122t)
we take natural log of both sides
Ln 0.15 = Ln e^(-0.000122t)
-1.897 = -0.000122t
t = -1.897/-0.000122 = 15549.18 yrs
Approximately 15549 yrs old
Hello!
We are told that the Father’s Day gift was $75, the cost of which was split between three people. This can be represented using the following equation:
(Beth) + (James) + (Buzz) = $75
We know that Beth and James each contributed $25. Now we can rewrite the equation with the given information and then simplify:
$25 + $25 + (Buzz) = $75
$50 + (Buzz) = $75
Now subtract $50 from both sides and simplify:
$50 (-$50) + (Buzz) = $75 (-$50)
Buzz = $25
We have now proved that Buzz contributed $25.
I hope this helps!
Answer:
A. 20
Step-by-step explanation:
To solve this you must know that the angles marked are vertical angles and are congruent. So, you should set them equal to each other
x+40=3x
you would subtract x from both sides
40=2x
and then divide 2 from both sides
20=x
hope this helped!
