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2 years ago

It cost Jodi $44.88 to buy 12 gallons of gas. What was the cost per gallon of gas?

Mathematics

1 answer:

kolbaska11 [484]2 years ago

7 0

Answer: just divide 44.88 by 12 so you will get 3.74

Step-by-step explanation:

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10ft/2in simplified so the units are the same

Roman55 [17]

Answer:

60 inches or 5 feet

step-by-step explanation:
10 ft can be turned into 120 in
120/2
60 inches or 5 feet

4 0

2 years ago

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Factor the expression. 9b2 – 25 a. (5b + 3)(5b – 3) b. (3b – 5)(3b – 5) c. (3b + 5)(3b + 5) d. (3b + 5)(3b – 5)

Snowcat [4.5K]

Answer:

Dear user,

Answer to your query is provided below

Option (d) is correct.

Step-by-step explanation:

Explanation of the same is attached in image

4 0

2 years ago

Pls help me find the answer of the ratio

cricket20 [7]

Answer:

pretty sure it's 10 1/2

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2 years ago

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A car is being driven at a rate of 40 ft/sec when the brakes are applied. The car decelerates at a constant rate of 10 ft/sec2.

IRISSAK [1]

Answer:

80 feet

Step-by-step explanation:

Given:

Initial speed of the car ( $v_0$ ) = 40 ft/sec

Deceleration of the car ( $\frac{dv}{dt}$ ) = -10 ft/sec²

Final speed of the car ( $v_x$ ) = 0 ft/sec

Let the distance traveled by the car be 'x' at any time 't'. Let 'v' be the velocity at any time 't'.

Now, deceleration means rate of decrease of velocity.

So, $\frac{dv}{dt}=-10\ ft/sec^2$

Negative sign means the velocity is decreasing with time.

Now, $\frac{dv}{dt}=\frac{dv}{dx}(\frac{dx}{dt})$ using chain rule of differentiation. Therefore,

$\frac{dv}{dx}\cdot\frac{dx}{dt}= -10\\\\But\ \frac{dx}{dt}=v.\ So,\\\\v\frac{dv}{dx}=-10\\\\vdv=-10dx$

Integrating both sides under the limit 40 to 0 for 'v' and 0 to 'x' for 'x'. This gives,

$\int\limits^0_{40} {v} \, dv=\int\limits^x_0 {-10} \, dx\\\\\left [ \frac{v^2}{2} \right ]_{40}^{0}=-10x\\\\-10x=\frac{0}{2}-\frac{1600}{2}\\\\10x=800\\\\x=\frac{800}{10}=80\ ft$

Therefore, the car travels a distance of 80 feet before stopping.

4 0

2 years ago

Frank cut a pie into 10 equal slices there are three slices left what is the measure of the angle formed by the 3 slices left

viva [34]

The three remaining slices would form 108 degrees.
Hope this helped (and that I was right) =P

6 0

2 years ago