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bonufazy [111]
3 years ago
10

Officer Franklin is on traffic duty his motorcycle is parked alongside the freeway and he’s using his radar gun to check the spe

ed of cars.
The speed limit on the stretch of this freeway is 75 mph a sports car races by Officer Franklin causing him to lose his grip on the radar gun when he picks it back up he clocks the car at 93 mph as it passes a bridge 1/2 of a mile ahead of him. Use your knowledge of writing equations to help determine the drivers location

Mathematics
1 answer:
Fantom [35]3 years ago
5 0
A:93
B: slope

the slope is the rate of change of the line. this line models the distance between cop and the driver. note that the cop is standing still while the sports car is moving away at 93 mph

if the x-axis is in hours and the y-axis is in miles, then slope = rise/run = km/h, which is kilometers per hour. the slope is the rate of change of distance for the distance vs time graph

therefore the slope is 93 mph

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Alice had $4.80 left after spending 40 percent of her money on lunch, 20 percent of what was left after lunch on parking, and 50
Vitek1552 [10]

Answer:

$20

Step-by-step explanation:

We are given the percentages of how much she spent on each purchase but we need the percentage of what is left after each purchase. We calculate this by subtracting each percentage from 100% like so.

100% - 40% = 60%

100% - 20% = 80%

100% - 50% = 50%

Next we need to do is change the percentages into decimal format. We do this by moving the decimal 2 digits to the left. Therefore the percentages wasted are the following

60.0%   ⇔   0.60

80.0%   ⇔   0.80

50.0%   ⇔   0.50

Now that we have the percentages in decimal format we can calculate the total price (t) by retracing the spending process. The spending process was following.

t_{2} = 0.60t

t_{3} = 0.80t_{2}

4.80 = 0.50t_{3}

So we have to retrace by solving for t_{3}, then t_{2}, and finally (t)

4.80 = 0.50t_{3} ... divide both sides by 0.50

9.60 = t_{3}

9.60 = 0.80t_{2} .... divide both sides by 0.20

12 = t_{2}

12 = 0.60t  .... divide both sides by 0.60

20 = t

Finally we can see that the Total amount of money that Alice had before lunch was $20

8 0
3 years ago
Jamal wants to build a rectangular enclosure for his animals. One side of the pen will be against the barn, so he needs no fence
den301095 [7]

Answer:

Area of the rectangle = 700 - 2w²

Step-by-step explanation:

In the picture attached one side of the rectangle is Barn.

Two perpendicular sides of the barn are width 'w' and one parallel side to the barn is 'l'.

Jamal has the fencing having length = 700 feet

So, to cover three sides of the rectangle length of wire required = (2w + l) feet

This length should be equal to the length of the wire, which is to be used to cover these three sides.

(2w + l) = 700

l = 700 - 2w ------(1)

Area of the rectangle = lw

By replacing the value of l from equation 1

Area = w(700 - 2w)

Area = 700w - 2w²

3 0
2 years ago
A triangle has side lengths of (8d – 3) centimeters, (6d + 2) centimeters, and
alisha [4.7K]

The perimeter of a triangle is the sum of its side lengths.

The perimeter of the triangle is: 14d + 7f +7

<u>The sides of the triangle are:</u>

Side 1 = (8d - 3) cm

Side 2 = (6d + 2) cm

Side 3 = (7f + 8) cm

The perimeter (P) is calculated as:

P = Side 1 + Side 2 + Side 3

So, we have:

P = (8d - 3) + (6d + 2) + (7f + 8)

Remove brackets

P = 8d - 3 + 6d + 2 + 7f + 8

Collect like terms

P = 8d  + 6d + 7f - 3 + 2 + 8

P = 14d + 7f +7

Hence, the perimeter of the triangle is: 14d + 7f +7

Read more about perimeters at:

brainly.com/question/6465134

3 0
3 years ago
I can't find the surface area, is this confusing me.
Fed [463]
<span>Find the area of two sides (Length*Height)*2 sidesFind the area of adjacent sides (Width*Height)*2 sidesFind the area of ends (Length*Width)*2 ends<span>Add the three areas together to find the surface area</span></span>
3 0
3 years ago
Read 2 more answers
Please help:((
kolezko [41]

Answer:

1/8 = 0.125

3/5= 0.60

30%=0.3

0.45=9/20

1.5=150%

Hey try to do these question by your self next time OwO

4 0
3 years ago
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