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3 years ago

The graph shows the relationship between the distance a truck can travel and the amount of gasoline used.

Mathematics

2 answers:

antoniya [11.8K]3 years ago

5 0

The graph shows the relationship between the distance a truck can travel and the amount of gasoline used.

Unit rate is define as the rise over the run or distance covered per unit time.
In this case :
Rate = 28 / 4 = 7 mpg

RUDIKE [14]3 years ago

3 0

Slope - Intercept form formula: y = mx + b
'm' represents the slope (unit rate)
'b' represents the y - intercept

Equation: y = 7x
Slope (unit rate): 7
Y-Intercept: 0

If you used 5 gallons of gasoline, you go 5 times the number of miles, which is 7, to get a total amount of 35 miles.
Unit rate = 7
The answer is B.

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Marrrta [24]

Answer:

Each hotdog costs $1.65

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Step-by-step explanation:

Let's begin by letting $x$ represent the number of hot dogs and $y$ the number of juice drinks.

The Baxter family bought 6 hot dogs and 4 juices for $14.10.

$6x + 4y = 14.10$

The Farley family bought 3 hot dogs and 4 juices for $9.15.

$3x + 4y = 9.15$

Now, we subtract these equations.

$6x + 4y = 14.10\\- (3x + 4y = 9.15)$

Since $y$ has reversed coefficients, it gets eliminated. Now solve for x.

$6x+4y-3x-4y=14.1-9.15\\3x = 4.95\\\frac{3x}{3} = \frac{4.95}{3}$

$\frac{4.95}{3} = 1.65$

$x = 1.65$

NOW, we find y by substituting x with 1.65 (in either equation).

We'll use the first equation.

$6x + 4y = 14.10$

$6(1.65) + 4y = 14.10$

$9.9 + 4y = 14.10\\4y = 14.1 - 9.9\\4y = 4.2$

$\frac{4y}{4} = \frac{4.2}{4} \\y = 1.05$

$x$ = 1.65

$y$ = 1.05

$x$ represents hotdogs and $y$ represents juice drinks.

Therefore, each hotdog costs $1.65 and each juice drink costs $1.05.

I hope this helps! :)

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3 years ago

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Sati [7]

Answer:

Step-by-step explanation:

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2 years ago

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vovangra [49]

Answer:

Step-by-step explanation:

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