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Jobisdone [24]
3 years ago
14

If Jaime is riding at 14 miles per hour and Cori is riding at 0.40 km per minute, how far will each of them bike in two hours? 1

mile is equivalent to 1.61 kilometers.
Use the equation d=vt.
Mathematics
1 answer:
natali 33 [55]3 years ago
3 0

Answer:

Jaime: d = 45.08\ km

Cori: d = 48km

Step-by-step explanation:

Given

V_1 = 14\ miles/hour

V_2 = 0.40\ km/hour

Time\ (t)\ = 2\ hours

Solving Jaime Distance;

d = vt

Substitute values for v and t

d = 14\ miles/hour * 2\ hours

d = 28\ miles

Convert to kilometer

d = 28 * 1.61\ km

d = 45.08\ km

Solving Cori Distance:

d = vt

Substitute values for v and t

d = 0.40km/min * 2\ hours

Convert hours to minute

d = 0.40km/min * 2 * 60\ min

d = 0.40km * 2 * 60

d = 48km

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Step-by-step explanation:

As we know that ,

Mean = sum of the terms/ numbers of terms

But here grouped data is given so , we use the formula

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Now first we have to find the mid point of each interval, where

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m1=(150+154)/2 = 152

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m3= 162

m4= 167

m5=172    Now we find the midpoint of each interval ,so now

∑[f. m]=f1*m1+f2*m2+f3*m3+f4*m4+f5*m5

now putting the values of each frequency for given interval and midpoint of each interval we will get,

∑[f. m]=456+942+1296+167*x+344 = 167*x+3038

Now find,

∑f=f1+f2+f3+f4+f5

∑f=19+x

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∑[f. m]=167*x+3038

∑f=19+x

also given mean height=161.6 cm

putt these values in above equation we get,

161.6=\frac{167*x+3038}{19+x}

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Answer:

two different numbers that round to 30 when rounded to the nearest ten are:

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