Add 2 1/4 hours to 6 hours 20 minutes please show the work

2 answers:

8 0

2 1/4 hours = 2 hours and 15 minutes
1/4 hours= 15 minutes because 15 goes into 60 four times
2 hours and 15 minutes + 6 hours and 20 minutes
2+6=8 hours
15+20=35 minutes
8 hours and 35 minutes is your final answer

Scrat [10]3 years ago

3 0

Answer:

Step-by-step explanation:

$1h=60min\to\dfrac{1}{4}h=\dfrac{1}{4}(60min)=15min\\\\2\dfrac{1}{4}h=2h\ 15min\\\\2\dfrac{1}{4}h+6h\ 20min=2h\ 15min+6h\ 20min=(2+6)h+(15+20)min=8h\ 35min$

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if your car gets 26 miles per gallon how much does it cost to drive 420 miles when gas is $2.80 per gallon

Kitty [74]

Answer:

$45.22

Step-by-step explanation:

The number of miles per gallon can be represented by the ratio:

$\frac{miles}{gallon}=\frac{26}{1}$

Since we know the unit rate of 26 miles per gallon of gas, we can set up a proportion, or equivalent ratios, to find the number of gallons needed for 420 miles:

$\frac{26}{1}=\frac{420}{x}$ , where 'x' is the number of gallons of gas