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gogolik [260]
3 years ago
13

Sam drove 220 miles on 8 gallons of gas. find the unit rate.

Mathematics
2 answers:
zmey [24]3 years ago
7 0

Answer:

27.5

Step-by-step explanation:

nikdorinn [45]3 years ago
3 0

Answer: I got 27.5

Step-by-step explanation:

This is a fraction equal to

220 miles ÷ 8 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 8

220 miles ÷ 8

8 hours ÷ 8

=

27.5 miles

1 hour

=

27.5 miles

hour

= 27.5 miles per hour

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Two trains leave New York at the same time heading in opposite directions. Train A travels at 4/5 the speed of train one. After
grandymaker [24]
<h3>Answer:  </h3><h3>speed of train A = 44 mph</h3>

=============================================

Work Shown:

x = speed of train A

y = speed of train B

"train A travels 4/5 the speed of train B" (I'm assuming "train one" is supposed to read "train B"). So this means x = (4/5)y

distance = rate*time

d = x*7

d = (4/5)y*7 = (28/5)y represents the distance train A travels

d = y*7 = 7y represents the distance train B travels

summing those distances will give us 693

(28/5)y + 7y = 693

5*(  (28/5)y + 7y ) = 5*693

28y + 35y = 3465

63y = 3465

y = 3465/63

y = 55

Train B's speed is 55 mph

4/5 of that is (4/5)y = (4/5)*55 = 4*11 = 44 mph

Train A's speed is 44 mph

8 0
3 years ago
PLS HELP ASAP ill give brainliest!! At a conference for 500 people, 30% of the participants are French, 15% are Americans, 5% ar
Arada [10]

Answer:

150

Step-by-step explanation:

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6 0
3 years ago
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Jan needed to empty 18 gallons of water from a tub into jugs that hold 0.5 gallons of water. How many jugs did Jan need?
julsineya [31]
The answer would be 36 jugs 
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A total of 234 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t
lorasvet [3.4K]
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after you get the equations you solve. plug 2a into the above equation.
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There is a discount of sale of 20% off of a $450 pair of skis how much is the discount ?
g100num [7]

Answer:

360

Step-by-step explanation:

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3 years ago
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