600 minutes at the gym divided by a total of 60 minutes equals 10. 10 times 25 minutes on the treadmill equals 250 minutes. 10 times 35 minutes lifting weights equals 350 minutes. He’s going to spend 100 more minutes lifting weights than on the treadmill per week.
Kara walks A. 3 2/5 miles
Step-by-step explanation:
Step 1; We must calculate how much 2/5 miles is. 2/5 miles equals 0.40 miles. Kara walks this distance times 8 1/2. 8 1/2 times equals 8.5 times. So the distance she walked is the number of loops walked × distance of each loop.
Total distance walked = Number of loops walked × distance of each loop
= 8.5 loops × 0.20 miles = 3.4 miles
Step 2; In order to check which option this is, we must know what values all the given options are equal to
A. 3 2/5 miles equals 3 miles + 2/5 miles = 3 + 0.20 = 3.20 miles.
B 4/85 miles equals 0.047 miles which is lesser than one loops distance.
C. 8 9/10 miles equals 8 miles + 9/10 miles = 8 + 0.90 = 8.90 miles
D. 21 1/4 miles equals 21 miles + 1/4 miles = 21 + 0.25 = 21.25 miles.
So the answer is option A.
Problem 16
<h3>Answer: i</h3>
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Work Shown:
The exponent 41 divided by 4 leads to
41/4 = 10 remainder 1
The "remainder 1" means that
i^(41) = i^1 = i
The reason why I divided by 4 is because the pattern shown below
i^1 = i
i^2 = -1
i^3 = -i
i^4 = 1
repeats itself over and over. So this is a block of four items repeated forever.
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Problem 18
<h3>Answer: 1</h3>
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Work Shown:
Divide 3136 over 4 to get
3136/4 = 784 remainder 0
Therefore,
i^3136 = i^0 = 1
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Problem 20
<h3>Answer: i</h3>
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Work Shown:
Combine i^6*i^7 into i^13. We add the exponents here
Now divide by 4 to find the remainder
13/4 = 3 remainder 1
So, i^13 = i^1 = i
So the equation of a line is y=mx + b.
In order to find the slope given only two coordinates we have to use a formula to find slope. It is:
y2-y1/x2-x1.
So let’s get all the values first from (3,4) and (2,-1).
y2= -1
y1=4
x2=2
x1=3
Plug in the values now.
-1 - 4 = -5
-5/2-3=5
The slope is 5x.
Now let’s find the y intercept, to find the y intercept, we have to do a formula which is:
y-y1=m(x-x1)
So let’s plug in the values.
y-4=5(x-3)
y-4=5x-15
+4 +4
y=5x-11
The final answer is y=5x-11!!!
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