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never [62]
3 years ago
10

Pls help me with this

Mathematics
1 answer:
BigorU [14]3 years ago
6 0

Answer:

x=0

Step-by-step explanation:

<u>Key skills needed: Proportions, Cross multiplication, One variable Equations, Multiplication</u>

1) Since this is a proportion, we need to cross multiply. A proportion is just 2 fractions equal to each other in this format.

---> Cross multiplication is when you multiply the first fraction's numerator by the second fraction's denominator, and you multiply the first fraction's denominator by the second fraction's numerator.

---> You set these products equal to each other.

2) So if we cross multiply it would be: 3(3x+5) = 5(3-2x)

---> If you multiply everything out, it would be --> 9x + 15 = 15 - 10x

3) Move the x terms to one side and the numbers to the other side

--->  9x + 10x = 15-15

4)  Combine like terms (9x+ 10x= 19x) (15-15=0) 19x = 0

5) Divide by 19 and x=0.

<em>Hope you understood and have a nice day!! :D</em>

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In a recent year a baseball team paid six times as much to their ace pitcher as they paid to their shortstop. If they paid $56 m
Kobotan [32]

Answer:

  • pitcher: $48 million
  • shortstop: $8 million

Step-by-step explanation:

The ratio of salaries can be written as ...

   short : pitcher = 1 : 6

Then the fraction of the total that the shortstop received is ...

  short : total = 1 : (1+6) = 1 : 7

The shortstop's salary was (1/7)×($56 million) = $8 million.

The pitcher's salary was 6 times that, so 6×($8 million) = $48 million.

The pitcher's salary was $48 million; the shortstop's, $8 million.

7 0
3 years ago
–x – 7 = 16 please help me
atroni [7]
Move the -7 to the right, its sign will flip (do you know why?)
Negate both sides to change -x to x

-x = 16+7
-x = 23
x = -23
7 0
4 years ago
Read 2 more answers
Please Help me I really need it :)
lapo4ka [179]

Answer:

C

Step-by-step explanation:

For the given intervals

( - ∞, - 5) ← use any value < - 5 but not - 5, the parenthesis ) indicates that x is less than - 5 but not equal to - 5

(- 5, - 1) ← - 4, - 3, - 2 can be used but not - 5 or - 1

(- 1, 4) ← 0, 1, 2, 3 can be used but not - 1 or 4

(4, ∞ ) ← use any value > 4 but not 4

Hence

3 can be used in (- 1, 4)

- 6 can be used in (- ∞, - 5)

zero can be used in (- 1, 4)

- 5 cannot be used in any of the given intervals

5 0
3 years ago
If f (x)=3x, g(x)=x-3, and h(x)= square root of x, find (fogoh)(25)
Lelu [443]
(f o g o h)(x) = f { g [ h(x) ] }

Which means: apply first function h, then apply function g to the result, and finally apply  function f to the new result.

h(25) = √25 = 5

g(5) = 5  - 3 = 2

f(2) = 3(2) = 6.

Answer: 6
8 0
3 years ago
What is the inverse of the function F (X) equals 2X +1
Liono4ka [1.6K]

Answer: f^{-1}(x)=\frac{x-1}{2}

Step-by-step explanation:

To find the inverse of a function start by replacing f(x) with x and replace the original x with y.

f(x)=2x+1\\x=2y+1

Now solve for y

x=2y+1\\x-1=2y+1-1\\x-1=2y\\\frac{x-1}{2} =\frac{2y}{2}\\\frac{x-1}{2} =y

Finally, replace y with the inverse of f(x), f^{-1}(x)

5 0
2 years ago
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