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stiks02 [169]
2 years ago
6

3(4 + x) = 45 What is x?

Mathematics
2 answers:
olchik [2.2K]2 years ago
8 0

<u>Answer:</u>

  • x = 11

<u>Step-by-step explanation:</u>

3(4 + x) = 45

=> 12 + 3x = 45

=> 3x = 33

=> x = 11

<u>Conclusion:</u>

Therefore:

  • x = 11

Hoped this helped.

polet [3.4K]2 years ago
5 0
The x is 11 because 4+11 = 15 and 15x3= 45 .
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Which operation is used for the equation down below
mario62 [17]

Answer:

B

Step-by-step explanation:

2x+8=9

you want to isolate the variable so you subract 8 from both sides

2x=1

now you want x by itself so you divide by 2 on both sides

x=1/2 or x=0.5

Hope this helped :)

3 0
3 years ago
A truck can at most be filled with 20 ton. If there are currently 14 ton goods there already, write an inequality representing t
Rom4ik [11]

Answer:

x + 14 \leq 20, x = 6 ton

Step-by-step explanation:

The truck can be filled with a total of 20 ton.

There are already 14 ton inside the truck, so if we call x the weight of goods that we can still add into the truck, we know that (x+14) must be equal at most at 20. Therefore, the inequality becomes:

x+14\leq 20

Solving it, we find

x\leq 6

which means that the most amount of goods that could be added to the truck is 6 tons.

4 0
3 years ago
Which of the following is the solution to the equation - y = 24?
Naddik [55]

Answer:

The Answer to this equation Y = 32

Step-by-step explanation:

6 0
3 years ago
A bird releases waste from a height of
shepuryov [24]

Answer:

5secs

Step-by-step explanation:

Given the equation of the height expressed ad;

h(t) = - 16t^2 + initial height

Given that initial height = 400feet

h(t) = - 16t^2 + 400

The waste will hit the ground at when h(t) = 0

substitute

0 =  - 16t^2 + 400

16t^2 = 400

t² = 400/16

t² = 25

t = √25

t = 5secs

Hence it will take the easte 5secs to hit the ground

7 0
2 years ago
find x if the distance between points L and M is 15 and point M is located in the first quadrant. L=(-6,2) M=(x,2)​
aivan3 [116]

Answer:

Therefore,

x = 9

Step-by-step explanation:

Given:

Let,  

point L( x₁ , y₁) ≡ ( -6 , 2)

point M( x₂ , y₂ )≡ (x , 2)

l(AB) = 15 units  (distance between points L and M)

To Find:    

x = ?

Solution:  

Distance formula between Two points is given as

l(LM)^{2} = (x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}

Substituting the values we get

15^{2}=(x--6)^{2}+(2-2)^{2}\\\\225=(x+6)^{2}

Square Rooting we get

(x+6)=\pm \sqrt{225}=\pm 15\\\\x+6 = 15\ or\ x+6 = -15\\\\x= 9\ or\ x = -21

As  point M is located in the first quadrant

x coordinate and y coordinate are positive

So x = -21 DISCARDED

Hence,

x = 9

Therefore,

x = 9

3 0
3 years ago
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