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4 years ago

815 gallons of gas cost $32. How many gallons of gas can Mike buy for $20?

Mathematics

2 answers:

jenyasd209 [6]4 years ago

5 0

Answer:

509 gallons as 815 gallons divided by 32 = 25.468 and we multiply by 20 to get 509.375 where we round down at 509 to find full gallon, anything less (via decimal) is not a full gallon.

Step-by-step explanation:

olchik [2.2K]4 years ago

5 0

Answer:

39.15 or 39 gallons

Step-by-step explanation:

1. create an equation

815= 32+20x

2. get x by itself

783=20x

3. divide 20 to both sides of the equal sign

39.15=x

4. So Mike can buy 39.15 or 39 gallons of gas for 20$

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Solve for x. Round your answer to the nearest tenth.

valkas [14]

Answer:

1. x = 11.5

2. x = 14.35

Step-by-step explanation:

$1. \: sin(angleBAC) = \frac{BC}{AB}$

$sin(35°) = \frac{x}{20}$

x = 11.472 ≈ 11.5

$2. \: tan(angleBAC) = \frac{BC}{AB}$

$tan(64°) = \frac{x}{7}$

x = 14.352 ≈ 14.35

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2 years ago

Please help me out with this

Naily [24]

Answer:

y = -3x - 2

Step-by-step explanation:

Equation of a line passing through $(x_1,y_1)$ and slope m is,

$y-y_1=m(x-x_1)$

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Slope = $\frac{y_2-y_1}{x_2-x_1}$

Slope of the line passing through (0, -2) and (1, -5) will be,

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8 0

3 years ago

suppose an architect draws a segment on a scale drawing with the end points (0,0) and (3/4,9/10). the same segment on the actual

dlinn [17]

Let the segment be represented by AB where A(0,0) = $A(x_{1}, y_{1})$ and B(3/4,9/10) = $B(x_{2}, y_{2})$ .

The length of the segment drawn by architect can be calculated using distance formula:

AB = $\sqrt{}( x_{2}- x_{1})^ {2} + (y_{2}- y_{1})^ {2}$

$AB=\sqrt{(3/4-0)^{2}+(9/10-0)^{2}$

$AB=\sqrt{9/16+81/100} \\$

$AB = (6\sqrt{61})/40$

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The length of the original segment can be calculated using distance formula:

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$AC=\sqrt{(30-0)^{2}+(36-0)^{2}$

$AC=\sqrt{900+1296} \\$

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3 years ago

Read 2 more answers

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beks73 [17]

Answer:

Step-by-step explanation:

let my present age=x

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3 years ago

A coordinate plane with a line passing through (0, negative 5) and (3, 0).

Gnom [1K]

Answer:

The answer is D; 5x - 3y = 15

Step-by-step explanation:

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3 years ago