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Crank
3 years ago
6

For her exercise today, Keiko plans to both run and swim. Let r be the number of laps she runs and let s be the number of laps s

he swims. Each lap she runs takes her 5 minutes, and each lap she swims takes her 3 minutes. She wants to exercise for at least 30 minutes today. Using the values and variables given, write an inequality describing this.
Mathematics
1 answer:
DerKrebs [107]3 years ago
6 0

Answer:

5r + 3s ≥ 30

Step-by-step explanation:

We know Keiko wants to do exercise at least 30 minutes a day, and she wants ideally to mix up the activities, by combining running and swimming into her schedule.

Since each lap she runs takes 5 minutes and each lap she swims takes 3 minutes, these will be the left side of the inequality:

5r + 3s

She wants to exercise at least 30 minutes a day, so...

5r + 3s ≥ 30

she could do 3 laps of running and 5 laps of swimming for example.

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nadya68 [22]
We know that
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</span>so
m∠D=(1/2)*[arc EFG]
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applying substitution property of equality
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(1/2)*arc EFG+(1/2)*arc GDE=180°----> m∠D+m∠F=180°

the answer in the attached figure

3 0
3 years ago
How would I answer 1.75 times 6​
Yuki888 [10]

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4 0
3 years ago
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FACTOR EACH EXPRESSION, IF IT CANT BE FACTORED WRITE CANNOT BE FACTORED. 1. 4x+12
dimaraw [331]
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4x+12

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Then, put the rest of the factors as a sum. (Only the factors on the same line.)
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Do you get it now?

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4 0
3 years ago
Read 2 more answers
Please help me with this:(
dolphi86 [110]

Answer:

Y = 32.7°

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We will apply the Cosine law in the given triangle XYZ,

x = 90 ft

y = 55 ft

z = 50 ft

We have to find the measure of angle Y.

y² = x² + z² - 2xzCosY

(55)² = (90)² + (50)² - 2(90)(50)cosY

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cosY = \frac{7575}{9000}

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Y = \text{cos}^{-1}(0.84167)

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5 0
3 years ago
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Inga [223]

Answer:

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Step-by-step explanation:

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3 years ago
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