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KatRina [158]
3 years ago
5

Lea walked 1/2 mile in 1/3 hour. How long will it take lea to walk 2 1/4 miles ?

Mathematics
2 answers:
cluponka [151]3 years ago
5 0

takes her 20 minutes to walk 1/2 a mile  

2 miles=80 minutes  

1/4= 10 minutes i think  

so 80+10=1 1/2

{This is not my work!!!}

aev [14]3 years ago
5 0

Step-by-step explanation:

Velocity = distance/time

1/3 h=20m

V=0.5/20=0.025m/m

So time= distance/velocity

T=2.25/0.25=90m

90m= 1.5h

I did it also by logic by using these steps:

1/2*(1/2 mile in 1/3 hour) = 1/4 mile in 1/6 hour

we have 9 quarter in 2 1/4

So 1/6 * 9 =1.5h

hope this helps !

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Answer:

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3 years ago
I need help pretty please!
Naddika [18.5K]

Answer:

cos(z) = .3846153846 and angle z = 67.38°

Step-by-step explanation:

Side UV is corresponding to side YX.  Side VW is corresponding to side YZ.  Side UW is corresponding to side XZ.

Starting with the first corresponding pair, we are told that side UV is 36, and that side YX is 3/5 of that.  So side YX is

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In order to find the cos of angle z, we need the adjacent side, which is side XZ.  Side XZ is 3/5 of side UW.  Right now we don't know the length of side UW, so we find it using Pythagorean's Theorem:

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UW = 15

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cos(z)=\frac{9}{23.4}

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