Pleaseeeee help!!

Calculate the fuel economy of your family or personal car in terms of gallons per mile and the total cost for one fill-up git hu

iren [92.7K]

Answer:

0.028 Gallons/mile

Step-by-step explanation:

1 Gallon = 3.78541 Litres

1 Mile = 1.60934 Km

Total Fuel Expenditure (Dec 2019) = PKR 7,000

Fuel cost / Litre = 114Litre/Km

Total Fuel consumption = (7000/114)

= 61.40 Litres or 16.22 Gallons

Total Distance Travelled in Dec 2019 = 921 Km or 572.28 miles

Fuel Economy = 16.22/572.28

= 0.028 Gallons/mile

One time tank fill up cost = PKR 1,500

6 0

3 years ago

Jack’s shipping company has to transport boxes of industrial nuts and industrial bolts to its clients. Each box of industrial nu

Ipatiy [6.2K]

Answer:

The correct option is B.

Step-by-step explanation:

Let the boxes of nuts be x and the boxes of bolts by y.

The weight of nut box is 100 kg and the weight of bolt box is 200 kg.The maximum weight the company’s cargo container can hold is 24,000 kilograms.

$100x+200y\leq 24000$

$x+2y\leq 240$ .... (1)

The company needs to transport a minimum of 160 boxes per cargo container.

$x+y\geq 160$ .... (2)

Plot the above inequalities on the coordinate plane.

The related equations are

$x+2y=240$ .... (3)

$x+y=160$ .... (4)

The x-intercept of equation 3 is (240,0) and the y-intercept is (0,120).

The x-intercept of equation 4 is (160,0) and the y-intercept is (0,160).

Check the inequality by (0,0).

$0+2(0)\leq 240$

$0\leq 240$

This statement is true, therefore the shaded region of inequality (1) contains (0,0).

$x+y\geq 160$

$0+0\geq 160$ \

$0\geq 160$

This statement is false, therefore the shaded region of inequality (2) does not contains (0,0).

Therefore graph (2) represents the solution and option B is correct.

4 0

3 years ago

Bill works at a local restaurant earning $300 per week. Today he was told that he will be given a raise of 10%. starting next we

Ksju [112]

$330. You can get this by multiplying the current rate by the increase (10%).

4 0

3 years ago

Breann solved the system of equations below. What mistake did she make in her work?

jonny [76]

Answer:

x − 2(5 − 2x) = 10

x − 10 + 4x = 10

Step-by-step explanation:

She subtracted wrong it's suppose to be 3 not 4

3 0

3 years ago

What value of x would make rq tangent to Circle P at point Q?

Novay_Z [31]

If Q is tangent to circle P, that means that it is perpendicular to the radius at the point of tangency. This means that ΔPRQ would be a right triangle. We can use the Pythagorean theorem to solve this.
9² + 12² = (x+9)²
We use x+9 because the unknown segment x would combine with the radius, 9, to give that side of the triangle (the hypotenuse).
81 + 144 = (x+9)(x+9) ---- remember that squared means multiplied by itself
225 = (x+9)(x+9)
Multiply the right hand side:
225 = x² + 9x + 9x + 81
225 = x² + 18x + 81
Subtract 225 from both sides:
225 - 225 = x² + 18x + 81 - 225
0 = x² + 18x - 144
Use the Quadratic Formula to solve:
$x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}
\\
\\x=\frac{-18 \pm \sqrt{18^2-4(1)(-144)}}{2(1)}
\\
\\x=\frac{-18 \pm \sqrt{324--576}}{2}
\\
\\x=\frac{-18 \pm \sqrt{324+576}}{2} = \frac{-18 \pm \sqrt{900}}{2}$
This gives us
$x=\frac{-18 \pm 30}{2} = \frac{-18+30}{2} \text{ or } \frac{-18-30}{2}$
Since -18 - 30 = -48, and a negative number doesn't make sense in this situation, we have
x = (-18+30)/2 = 12/2 = 6.

7 0

3 years ago

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