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barxatty [35]
3 years ago
13

Write the following using algebraic notation, using the letter x for any

Mathematics
1 answer:
lbvjy [14]3 years ago
4 0

9514 1404 393

Answer:

  2(x+1)

Step-by-step explanation:

  x . . . I think of a number

  x +1 . . . add 1

  2(x +1) . . . double the result

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How do you interpret the statement that F(60)=86?
igor_vitrenko [27]

Answer:

Step-by-step explanation:

"F" is the name of a function.  If we choose "60" as the input to this function, the resulting output vaue is 86.  The function F maps 60 (input) onto 86 (output).

5 0
3 years ago
Read 2 more answers
What is the difference between solving an equation and an inequality?
statuscvo [17]
When you solve an equation, it has an equal sign (=) and inequalities do not. When you solve an inequality the answer isn't exact (depending on the sign ie: <, >, etc...) equations usually are exact answers. other than that, I don't think there is a big difference in solving them.
5 0
3 years ago
<img src="https://tex.z-dn.net/?f=4x%20%2B%202x%20%3D%2020%20%5C%5C%20x%20%2B%203x%20%3D%2050" id="TexFormula1" title="4x + 2x =
Zigmanuir [339]

Answer:

I think there is an error in the question, I assume it reads:

4x+2y=20

x+3y=50

If not, please make appropriate corrections to the question.

Answer: x=-4, y=18

Step-by-step explanation:

4x+2y=20

Simplify, divide by two,

2x+y=10.....................(1)

x+3y=50....................(2)

Multiply (2) by 2

2x+6y=100 ....................(2a)

Subtract (1) from (2a)

2x+6y - (2x+y) = 100 - 10

5y = 90

y=18..............................(3)

Substitute (3) into (1)

2x+(18)=10

2x = 10-18 =-8

x=-4  ............................(4)

Substitute (3) and (4) into (1) for verification

2x+y = 2(-4)+18 = 18-10 = 10   checks.

Substitute (3) and (4) into (2) for verification

x+3y=-4+3(18) = -4+54 = 50  checks.

Have a nice day!

8 0
3 years ago
What is the simplest form of the expression (14.2a + 9.8b) – (13.1b – 0.2a) – (3.7a + 4.8b)
finlep [7]

Answer:

10.7a-8.1b

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Can someone please explain to me the answer to this problem????<br> 5(a +3)= 40
mamaluj [8]

Answer:

5

Step-by-step explanation:

5(a+3)=40

5a+15=40

5a+15-15=40-15

5a=25

a=5

7 0
3 years ago
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