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Fed [463]
3 years ago
14

Three times antonios age plus 2 times sarahs equals 14. sarahs age is also twice antonios age. how old is sarah

Mathematics
1 answer:
zubka84 [21]3 years ago
8 0
Sarah is 4 years old
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In one baseball season, Nolan hit twice the difference of the number of home runs Mrs. Davis hit and 6. Altogether, they hit 18
Alborosie

Answer:

Nolan hitted 8 home runs

Step-by-step explanation:

Let's call the number of home runs that Nolan hitted by N, and that Davis hitted by D.

So, we can write the following equations:

N = 2 * (D - 6)

N + D = 18

Now we can solve the system of equations, using the value of N from the first equation in the second one:

2 * (D - 6) + D = 18

2*D - 12 + D = 18

3*D = 30

D = 10

Now we find N:

N + D = 18

N + 10 = 18

N = 8

So we have that Nolan hitted 8 home runs.

4 0
3 years ago
Given that 12 , 3 is on the graph of f(x) find the corresponding point for the function
mariarad [96]
(12,24)
Hope it helps love.
-Joker7721
8 0
3 years ago
Given the functions f(x) = 2x -1 and g(x) =
Novosadov [1.4K]

Answer:

Please check the explanation.

Step-by-step explanation:

Given

  • f(x) = 2x - 1
  • g(x) =  2 - x

a)

f(x) + g(x) = (2x - 1) + (2 - x)

                = 2x -1 + 2 - x

                = x + 1

b)

f(x) - g(x) = (2x - 1) - (2 - x)

              = 2x - 1 - 2 + x

               = 3x - 3

c)

g(-5) - f(-5)

Putting x = -5 in g(x) = 2 - x

g(x) = 2 - x

g(-5) = 2 - (-5) = 2+5 = 7

Putting x = -5 in f(x) = 2x - 1

f(x) = 2x - 1

f(-5) = 2(-5) - 1

       = -10 - 1

        = -11

Thus,

g(-5) - f(-5) = 7 - (-11) = 7+11 = 18

d)

f(x).g(x) = (2x - 1) (2 - x) = -2x² + 5x - 2

e)

f(g(x)) = f(2-x)

          = 2(2-x)-1

          = 4-2x-1

          = 3-2x

6 0
3 years ago
Please answer this correctly
miv72 [106K]

Answer:

24

Step-by-step explanation:

Its the first model in purple. There are 6 students that represent a quarter of the class, so there is 6*4 = 24 students total.

5 0
3 years ago
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If f(x)=-2x+2 then find f(1/2)
natima [27]

Answer:

F is 0

Step-by-step explanation:

If you divide X on both sides to get X on one side, it will end with F = -2 + 2, which is 0

3 0
3 years ago
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