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kvasek [131]
3 years ago
11

An airplane 30000 feet above the ground begins descending at a rate of 2000 feet per minute The best form to use is because ther

e is a and a Write an equation
Mathematics
1 answer:
mina [271]3 years ago
4 0

Answer:

30000-2000=28000 feet.

This is a form of subtraction to use the ground and descend to ground level.

Step-by-step explanation:

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12x15y=4140; x+y= ? <br> solve.
Semenov [28]

Answer: The number of $12 tickets and $15 sold are 120 and 180 respectively.

Step-by-step explanation:

The given equation is:

12x + 15y = 4140             .....(1)

Where,

x stands for $12 tickets and y stands for $15 tickets

According to the question:

x + y = 300           ....(2)

Now solving equation 1 and 2.

From equation 2:

x = 300 - y

Now putting this expression in equation 1.

12x + 15y = 4140

12(300 - y) + 15y = 4140

3600 - 12y + 15y = 4140

3600 + 3y = 4140

3y = 4140 - 3600

3y = 540

y = 180

And,

x = 300 - y = 300 - 180 = 120

The number of $12 tickets sold = x = 120

The number of $15 tickets sold = y = 180

Thus, the number of $12 tickets and $15 sold are 120 and 180 respectively.

4 0
3 years ago
Can someone help me with this one i am confused
RideAnS [48]

Answer:

Formula: (x^2 -h) +(y^2 -k)=r^2

The number on the right side of the = is the radius of the circle squared.

(h,k) is the center of the circle.

4 0
3 years ago
If a math student Square both legs of a right triangle and the results were 441 and 400, what is the length of the hypotenuse of
kolezko [41]

Answer:

29 \\

Solution:

According to the Pythagorean Theorem, is that the square of the hypotenuse is equal to the sums of squares of the two legs in which if you take the square root of the sum you are going to get the actual length of the hypotenuse but the two legs are already squared so all you have to do now is sum them and take the square root of it.

\sqrt{441  +  400}  \\  \sqrt{841} \\ 29

7 0
3 years ago
Need your help asap trying to get 100%
marta [7]

Answer:

if he sells 12 every 8 months, supposing the trend continues, in 34 months he’ll sell...

12(properties) = 8 months

12/8 = 1 month

1 month = 1.5(properties)

2 months = 3 properties

(since 1.5 properties is unrealistic, but it helps in the math, to find for one month)

so for 34 months he’ll sell...

1.5*34 = 51 properties

4 0
4 years ago
Explanation on How to answer what is the density of an object that has a mass of 73,430 and the volume of 7 m3
scZoUnD [109]

Answer:

Density = 10,490 g/m³

Step-by-step explanation:

Density = mass ÷ volume

here mass = 73,430 g

        volume = 7 m³

density = 73,430 ÷ 7

             = 10490 g/m³

Density = 10,490 g/m³

7 0
3 years ago
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