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3 years ago

Question 5(Multiple Choice Worth 4 points)

Mathematics

1 answer:

Zanzabum3 years ago

6 0

Answer:

boys: total

3 8

Step-by-step explanation:

boys:girls: total

9 : 15 : 9+15

9 15 24

Divide each by 3

3 5 8

We want the ratio of boy to total

boys: total

3 8

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3 years ago

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Next in pattern 7, 11, 2, 18, -7, ?

Tatiana [17]

Answer: 11,

Step-by-step explanation:

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2 years ago

Kevin compared the absolute values of -10 1/8 -9.25 -8 3/8 and -12.4 which number has the greatest absolute value

erik [133]

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3 years ago

Carole's car averages 13.2 mi/gal in city driving and 25.3 mi/gal in highway driving. If she drove a total of 396.0 mi on 19 gal

nika2105 [10]

Answer:

7 gallons were used for city driving.

Step-by-step explanation:

I am going to solve this question by a system of equations.

I am going to say that:

x is the number of gallons driven in the city.

y is the number of gallons driven in the highway.

19 gal of gas

This means that $x + y = 19$

Carole's car averages 13.2 mi/gal in city driving and 25.3 mi/gal in highway driving. If she drove a total of 396.0 mi.

This means that $13.2x + 25.3y = 396$

How many of the gallons (to the nearest gallon) were used for city driving?

This is x

From the first equation, i will have

$y = 19 - x$

Replacing in the second equation

$13.2x + 25.3y = 396$

$13.2x + 25.3(19 - x) = 396$

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$x = \frac{84.7}{12.1}$

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3 years ago

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lapo4ka [179]

Answer:

Step-by-step explanation:

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3 years ago