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1 year ago

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A parking meter contains 4 times as many nickels as quarters. The meter contains $4.05 total. Select two equations that would be

used to find the number of nickels, n, and the number of quarters, q, in the parking meter.

1 answer:

Maru [420]1 year ago

7 0

Answer:

xc

Step-by-step explanation:

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Brian has started a savings account. the balance, g(x), in his account can be represented by the function g(x)= 25x + 350, where

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How much he deposits in his account each week.

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The box plots compare the number of students in Mr. Ishimoto’s classes and in Ms. Castillo’s classes over the last two semesters

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<span>-Both box plots show the same interquartile range.
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</span><span>-The smallest class size was 24 students.
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Based on the graph shown to the right, whose phones cost varies directly with the amount of time spent talking?

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B

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Given 2 quantities that vary directly, then the graph must pass through the origin.

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Assume that Mrs. Giang’s car travels 14 miles on each gallon of gas. If she travels to visit her niece who lives 133 miles away,

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Then take the number of miles to go (133 miles to go)

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Gavin likes biking. He never misses a chance to go for a ride when the weather is nice. This week his goal is to bike about 65 t

andreyandreev [35.5K]

Answer:

How far should he ride on each of the four days to reach his goal?

1st day: $8$ miles

2nd day: $12$ miles

3rd day: $18$ miles

4th day: $27$ miles

Step-by-step explanation: As the problem says, $x$ is the number of miles he rides on the first day. Let's start off with that.

1st day: $x$ miles

He want to ride 1.5 times as far as he rode the day before... no 1.5 more, but 1.5 <em>times</em> as far as he rode the day before; you would multiply 1.5 with the previous day's length.

2nd day: $1.5x$

Then you multiply $1.5$ to $1.5x$ to get the third day's.

3rd day: $2.25x$

4th day: $3.375x$

----------------------------

Phew! Gavin wants to ride a total of 65 miles over these four days, so if Gavin added all the miles of the four days, he should get 65...

1st+2nd+3rd+4th=65

$x+1.5x+2.25x+3.375x=65$

$8.125x=65$

$\frac{8.125x}{8.125}=\frac{65}{8.125}$

$x=8$

Yes! Now that we've got the hard part done... substitute 8 for ever single $x$ .

1st day: $8$ miles

2nd day: $1.5(8)=12$ miles

3rd day: $2.25(8)=18$ miles

4th day: $3.375(8)=27$ miles

-------------------------

Checking my answer:

Just add the miles!

$8+12+18+27=65$

$65=65$

✓

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Hope that helps! :D

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2 years ago