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alukav5142 [94]
2 years ago
10

1)In an year the value of a motorcycle depreciates by 10% of its value at the beginning of that year.What is its value after two

years if the purchased price was $7200?
2)When John Short increases the spend at which he motors from an average of 40mph to 50mph,the number of miles travelled per gallon decreases by 25%.If he travels 36 miles on each gallon when his average speed is 30 mph how many miles per gallon can he execpt at an average speed of 50mph? ​
Mathematics
2 answers:
Marta_Voda [28]2 years ago
7 0

Answer:1. $5760

Step-by-step explanation:

sammy [17]2 years ago
7 0

Answer:

the answer is 1,200 thats what i got

Step-by-step explanation:

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A population of 1200 leopards decreases by 12% per year. How many leopards will there be in the population after 6 years? Round
frez [133]
12% of 1200 is 144, so subtract that. you get 1056. 12% of that is 126.72, so you subtract that. you get 929.28. 12% of that is 111.5136 and you subtract that. and so on and so forth. the answer would be 557.
3 0
2 years ago
[2+(6times8)]-1 plz help
bezimeni [28]

[2+(6times8)]-1

= [2+(6 * 8)] -1

= [2+(48)] -1

= 50  -1

= 49

8 0
2 years ago
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Trey biked 7.5 km for his last ride on Saturday. If he biked 22.3 km for the week, how many kilometers did he bike before Saturd
ololo11 [35]

Answer:

...

Step-by-step explanation:

6 0
3 years ago
What is the slope of the line given by the equation y= -3x
galben [10]

Answer:

-3

Step-by-step explanation:

The given equation is in slope intercept form.

The form is y=mx+b

This is where "m" is the slope, and "b" is the y intercept.

So in this equation, m=-3.

Therefore, the slope is -3.

3 0
2 years ago
Jack is flying his kite . He runs 100 feet away from his house and lets out 45 feet of string . The angle of elevation from the
fiasKO [112]

Answer: 125.80 ft

Step-by-step explanation:

Asuming the described situation is as shown in the figure below, we need to find the distance h between the kite and Jacks house, but first we need to find the x, y and then d.

How?

We will use trigonometry, especifically the trigonometric functions sine and cosine:

For y:

sin(65 \°)=\frac{y}{45 ft} (1)

Where y is the opposite side to the angle and 45 ft the hypotenuse.

Isolating y:

y=40.78 ft (2)

For x:

cos(65 \°)=\frac{x}{45 ft} (3)

Where x is the adjacent side to the angle.

Isolating x:

y=19.017 ft (4)

Finding d:

d=x+100 ft (5)

d=19.017 ft +100 ft

d=119.017 ft (6)

Now that we have found these values, we have to work with a bigger triangle, where the hypotenuse is the distance between the kite and Jack's house h and the sides are the values calculated in (4) and (6).

So, in this case we will use the <u>Pithagorean theorem</u>:

h^{2}=y^{2} +d^{2} (7)

Isolating h and writing with the known values:

h=\sqrt{y^{2} +d^{2}} (8)

h=\sqrt{(19.017 ft)^{2} +(119.017 ft)^{2}} (9)

h=125.80 ft This is the distance between the kite and the house

3 0
3 years ago
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