Hello everyone! I really need these two by Friday. & can you explain how you got the answer to the top one? Thank you all in advance!!!!!!!!! (it's just two)

Answers

Answer 1

Answer: the answer to the first:

x>9 ⇒ x∈(9,+∞)
the graph shows that the x is bigger that 9 but IT CAN'T BE 9, we can tell that because the inner of the dot is white (if the inner of the dot was black too it would meant that the x would be bigger that 9 but it could be 9 as well).
I also inserted a picture which shows what I'm talking you about (just ignore the greek on the top).

the answer to the second:

4(3x)+7-5x-5+3y-y=
= 12x+7-5x-5+3y-y
=7x-2y+2

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two trains leave the station on time.one train travels north at 60mph .the other train travels south at 50mph.how many miles will the second train travel if the trains are 330miles apart

Answers

it doesn't matter how far apart just so you know and you answered it 3330 miles apart because you multiply 60 by 50

Solve for x I can’t seem to get it I feel so stupid I’m sorry but please someone help me

Answers

In the given triangle the lines are parallel.We can apply Triangle proportionality theorem.

The theorem states: If a line parallel to one side of a triangle intersects the other two sides of the triangle, then the line divides these two sides proportionally.

We can form a proportion using this theorem :

$(5)/(3) =(6)/(x)$

To solve x we cross multiply:

5x=18

Dividing both sides by 5 we get

x=3.6

Second option.

Use the Side Splitter Theorem (also known as the Basic Proportionality Theorem)

5/3 = 6/x

5x = 3 * 6

5x = 18

x = 3.6

Answer: B. 3.6

450 is what percent of 600

Answers

450 is 75% of 600.

→ Why?

First of all, work out what 25% of 600 is.

25% of 600 is 150. Since 25% is 3 times smaller than 75%, the correct answer, you multiply 150 by 3 to get your answer.

And whaddya know! 150 × 3 = 450!

If 150 is 25% of 600, Now multiply 25% by 3 also to get what 450 is equal to.

25% × 3 = 75%

So, therefore, 450 is 75% of 600

↑ ↑ ↑ Hope this helps! :D

16 times what equals 40

Answers

The complete statement is 16 times (5/2) equals 40.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

let, 16 times 'x' equals to 40.

Therefore, 16x = 40.

x = 40/16.

x = 20/8.

x = 10/4.

x = 5/2.

learn more about numerical expressions here :

brainly.com/question/29199574

#SPJ5

it cannot equal 40 but it can be multiplied by 2 and become 42

What is the value of X if 5X + 25(34-x)= 510

Answers

Answer:

- 17

Step-by-step explanation:

hello :

5x + 25(34-x)= 510

divid by 5 : x +5(34-x)=102

x+ 170 -5x = 102

-4x =102-170

-4x = 68

x = 68/- 4 = - 17

Locate 11/3 on a number line

Answers

Draw a number line with three notches for each number.

1 2       3    4    5
l--l--l--l--l--l--l--l--l--l--l--l--l

11/3 is equal to 3 2/3, so it would be two notches past 3, on the notch indicated with arrows below.

1 2       3 ↓ 4    5
l--l--l--l--l--l--l--l--l--l--l--l--l
      ↑

11/3 would be closlely to 3.5 because it is 3.66667