Answer:
65 miles
Step-by-step explanation:
There are two simultaneous equations
. Remeber that v=d/t, 1hour = 60 minutes.
1. 40 = (d+15)/(t+0.5)
2. 50 = d/t
solving: d= 25 miles and t=0.5 hours.
The distance traveled is:
D=d+d+15
D=65 miles
Mathematically, when you calculate the inverse function (f-1(x)), you’re switching the “inputs” (x) and the “outputs” (f(x)) and then re-solving the equation. So, you’d start with something like:
x = 3*f-1(x) + 3
x - 3 = 3*f-1(x)
(x - 3)/3 = f-1(x)
Your inverse formula would be (x - 3)/3. Hope this helps! (Hopefully Brainly doesn’t mess up the text format.)
Actual length of the pole and the length of the shadow cast by the pole follow the proportional relationship.
Following this rule, 20 feet tall flagpole will cast 3.33 feet shadow.
If the length of the shadow = x feet
Proportional relationship will be defined by the expression,


feet
Therefore, length of the shadow cast by flagpole will be 3.33 feet.
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brainly.com/question/23262569
Answer:
Step-by-step explanation:
Converting 2331 to base 10.
2*93=1458
3*92=243
3*91=27
1*90=1
Adding all to get Ans=172910
Answer:
33 ⅓%
Step-by-step explanation:
Percent means out of 100, so write a proportion:
1 / 3 = x / 100
Solve for x by multiplying both sides by 100:
x = 100 / 3
Reduce:
x = 33 ⅓
The percent of questions he got right is 33 ⅓%.