Answer:
Distance Jamie must sprint to reach Shelly is; L = 107 m
Step-by-step explanation:
We are given;
Central angle;θ = 123°
Radius;r = 50m
Now, for us to find out how many meters Jamie must sprint to reach Shelly, we'll use the formula for arc length of a circle;
Arc length; L = 2πr(θ/360)
So, plugging in the relevant values, we have;
L = 2π(50)(123/360)
L = 107.34 ≈ 107 m
L = 107 m
The answer :
74,846
The explanation:
Answer:
The error she made was that she was adding x and 2.75. She should subtract 2.75 from x.
Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.
Step-by-step explanation:
The error she made was that she was adding x and 2.75.
She should write the equation as 8 (x - 2.75) = 78; as she spends $2.75 to make a necklace.
By using the correct equation: 8 (x - 2.75) = 78
=> 8x - 22 = 78
=> 8x = 78 + 22
=> 8x = 100
=> x = 100/8
=> x = 12.5
Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.
Hope this helps you.
Answer:
102 ≤ heart rate ≤ 183.6
Step-by-step explanation:
... lower limit ≤ heart rate ≤ upper limit
Put 16 where "a" is and do the arithmetic.
... lower limit = 0.5(220 -16) = 102
... upper limit = 0.9(220 -16) = 183.6
Then the inequality is ...
... 102 ≤ heart rate ≤ 183.6
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<em>Comment on the problem</em>
There is nothing to "solve" here. One only needs to evaluate the limits.
