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3 years ago

Ravi drove 648 miles in 9 hours. At the same rate,how long would it take him to drive 792 miles ?

Mathematics

2 answers:

anygoal [31]3 years ago

4 0

Answer:

11 hours

Step-by-step explanation:648/9=72 miles per hour

792/72=11

Anika [276]3 years ago

4 0

Answer: Ravi will drive 792 miles in 11 hours

Step-by-step explanation:

Ravi drove 648 miles in 9hours, let the missing number of hours be represented by x.

Therefore,

648 miles = 9 hours

792 miles = x hours

Find x.

To find x, we cross multiply:

648x = 9 x 792

648x = 7128

Divide both sides by 648

x = 11

Therefore, ravi will drive 792 miles in 11 hours.

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2 years ago

Cherie is jogging around a circular track. She

skelet666 [1.2K]

Answer:

Measure of minor angle JOG is $95.5^{\circ}$

Step-by-step explanation:

Consider a circular track of radius 120 yards. Assume that Cherie starts from point J and runs 200 yards up to point G.

$\therefore m JG = 200 yards, JO=120 yards$ .

Now the measure of minor arc is same as measure of central angle. Therefore minor angle is the central angle $\angle JOG = \theta$ .

To calculate the central angle, use the arc length formula as follows.

$Arc\:Length\left(s\right) = r\:\theta$

Where $\theta$ is measured in radian.

Substituting the value,

$200=120\:\theta$

Dividing both side by 120,

$\dfrac{200}{120}=\theta$

Reducing the fraction into lowest form by dividing numerator and denominator by 40.

$\therefore \dfrac{5}{3}=\theta$

Therefore value of central angle is $\angle JOG = \theta=\left(\dfrac{5}{3}\right)^{c}$ , since angle is in radian

Now convert radian into degree by using following formula,

$1^{c}=\left(\dfrac{180}{\pi}\right)^{\circ}$

So multiplying $\theta$ with $\left(\dfrac{180}{\pi}\right)^{\circ}$ to convert it into degree.

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$\therefore \theta = 95.49^{circ}$

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