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Elden [556K]
3 years ago
7

What is 3f+3<6 or 7f-20>50

Mathematics
1 answer:
sergey [27]3 years ago
7 0
3f+3<6  

(First get all the constants on one side and the variables on the other side.)

3f+3<6
    -3 -3
----------
3f < 3

(Then divide by the number with the variable to isolate it.)

3f < 3
---   --
3     3

f < 1

It would be the same for this one also:

7f-20>50
   +20 +20
________
7f > 70
--     ---
7      7

f > 10

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Find 3 consecutive odd integers such that 10 times the first is 59 more than the third?
Nikolay [14]

Answer: The required three consecutive odd integers are 7, 9 , 11.

Step-by-step explanation:

Let x , x+2 , x+4 be the three consecutive odd integers.

As per given ,  

10(x) = 59+x+4

⇒10x= 59+x+4

⇒ 9x= 63

⇒ x= 7   [ divide both sides by 7]

Hence, the required three consecutive odd integers are 7, 9 , 11.

7 0
2 years ago
If A = James's present age, write an expression for his age seven years from now *
Keith_Richards [23]

Answer:

A +7= F

Step-by-step explanation:

A is his current age, and he gains, or adds seven years he will be F or his future age.

5 0
2 years ago
Read 2 more answers
Jess will plant up to 27 acres on her farm with wheat and corn. More than 5 acres will be planted with wheat.
Lena [83]
The first thing we do in these cases is to define the variables.
 We have then:
 w = represent the number of acres of wheat
 c = represent the number of acres of corn
 We write now the inequalities based is:
 "Jess will plant up to 27 acres on her farm with wheat and corn"
 w + c <= 27
 "More than 5 acres will be planted with wheat"
 w> 5
 Answer:
 
two inequalities that represent this situation are:
 
w + c <= 27
 
w> 5
8 0
3 years ago
Read 2 more answers
You toss a coin 15 times. P( heads) 2/5=
PIT_PIT [208]
The answer is

2/5 = 0.4

Because

2/5 2 divide 5 = 0.4
4 0
3 years ago
Suppose that F is an inverse square force field below, where c is a constant.
Andre45 [30]

Answer:

Forces in our Universe

Step-by-step explanation:

a)

First of all we have,

F(r) = \frac{cr}{|r|^{3} }

and,

r = xi+yj+zk

We need to define a function that allows us to find said change based on r, so one of the functions that shows that change is,

f(r) = - c /|r|

That is,

\nabla f = F

For this case F is a conservative field and the line integral is independent of the path. Thus, defining  P_{1} = (x_{1}, y_{1}, z_{1}) and P_{2} = (x_{2}, y_{2}, z_{2}) . So the amount of work on the movement of the object from P1 to P2 is,

W=\int\limits_c  {F} \, dr

W= f(P_{1}-P_{2})

W= \frac{c}{(x_{2}^2+ y_{2}^2+ z_{2}^2)^{1/2} } -\frac{c}{(x_{1}^2+ y_{1}^2+ z_{1}^2)^{1/2}}

W= c(\frac{1}{d1}-\frac{1}{d2}  )

2) The gravitational force field is given by,

F(r) =-\frac{mMGr}{ |r|^3}

The maximum distance from the earth to the sun is 1.52*10 ^ 8 km and the minimum distance is 1.47*10 ^ 8km. The mass values of the bodies are given by m = 5.97*10 ^ {24}kg, M = 1.99 *19 ^ {30}kg and the constant G is 6.67 * 10 ^{ -11 } \frac{Nm ^ 2}{kg^2}

In this way we raise the problem like this,

c= -mMG

W= -mMG (\frac{1}{1.52*10 ^ 8} -\frac{1}{1.47*10 ^ 8} )

W= -(5.95*10^{24})(1.99*10^{30})(6.67*10^{-11})(-2.2377*10^{-10})

W \approx 1.77*10^{35}}J

5 0
2 years ago
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