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Ronch [10]
3 years ago
7

Subtract. Susan began a trip with 18 1/2 gallons of gas in the gas tank of her car. If she used 17 3/4 gallons on the trip, how

many gallons did she have left when she finished the trip?
a 1 1/4 gallons
b 1 3/4 gallons
c 1/2 gallons
d 3/4 gallons
Mathematics
2 answers:
Gemiola [76]3 years ago
8 0
D. 18.5 minus 17.75 is .75
cestrela7 [59]3 years ago
6 0

Answer:

Option (d) \frac{3}{4} gallon is correct.

Step-by-step explanation:

Amount of gas present in the gas tank when she began the trip is 18\frac{1}{2} =\frac{37}{2} gallons.

Amount of gas she used in the trip is 17\frac{3}{4} =\frac{71}{4} gallons

Now, in order to find the amount gas she has left when she finished the trip, we need to subtract the amount of gas used during the trip from the gas present in the gas tank at the begining.

So, the amount of gas she have left is \frac{37}{2} -\frac{71}{4}

=\frac{74-71}{4}

=\frac{3}{4}

Hence, she left with \frac{3}{4} gallon of gas.

So, option D is correct.

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An HP printer costs $180, with printing costs of $0.03 per page. A Samsung printer costs $230, with printing costs of $0.01 per
Softa [21]

Answer:

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Step-by-step explanation:

Let

y -----> the overall cost

x -----> the number of pages

we know that

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y=0.03x+180 ------> equation A

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y=0.01x+230 -----> equation B

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2 years ago
What will be the units of the square of the following <br>a - 2346<br>b - 5677​
AlladinOne [14]
<h2>Answer:</h2>

(a) 6

(b) 9

<h2>Step-by-step explanation:</h2>

The units of a whole number is the rightmost digit in the number. For example, if the number is <em>15678</em>, the units is <em>8</em> since that is the rightmost digit. Another example is <em>25795</em>. The units is <em>5.</em>

<em></em>

(a) To find the units of the square of -2346,

<em>i. First find the square of (-2346)</em>

(-2346)² = (-2346) x (-2346) = 5503716

<em>ii. Now find the rightmost digit.</em>

The rightmost digit of 5503716 is 6.

<em>Therefore, the units of the square of (-2346) is </em><em>6</em>

<em />

<em />

(b) To find the units of the square of -5677,

<em>i. First find the square of (-5677)</em>

(-5677)² = (-5677) x (-5677) = 32228329

<em>ii. Now find the rightmost digit.</em>

The rightmost digit of 32228329 is 9.

<em>Therefore, the units of the square of (-5677) is </em><em>9</em>

<em />

<em />

<em />

3 0
3 years ago
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