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Dennis_Churaev [7]
3 years ago
5

Solve 3x-4= 7 you may use the flowchart to help you if you wish

Mathematics
2 answers:
laiz [17]3 years ago
5 0

Answer:

x = 3 2/3

Step-by-step explanation:

Given

3x - 4 = 7

Add 4 to both sides of the equation

3x - 4 + 4 = 7 + 4

3x = 11

Divide both sides by 3

3x/3 = 11/3

x = 3 2/3

olga55 [171]3 years ago
5 0

Answer:

Step-by-step explanation:

3X-4=7

3X=7+4

3X=11/3

X=3,66

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nikita ran a 5-kilometer race in 39 minutes (0.65 of an hour) without training beforehand. in the first part of the race, her av
Nataliya [291]
Total distance 5 km; at 5km / 0.65 h =

Second part distance: x; at 6 km/h, during t2

First part distance: 5 - x; at 8.75 km/h, during t1

V = d/t ⇒ t = d/V

t2 = x/6
t1=[5-x]/8.75

t2 + t1 = 0.65

x/6 + [5-x]/8.75 = 0.65

x/6 + 5/8.75 - x/8.75 = 13/20

 x/6 - x/8.75 = 13/20 - 5/8.75

x/6 - 4x/35 =13/20 - 20/35

35x - 24x = (35*6)(35*13 - 20*20)/(20*35)

11 x = 16.5
x = 16.5/11 = 1.5 km












5 0
3 years ago
PLS HELP IM DOING A TIMED QUIZ
Bond [772]

Answer:

30.3

Step-by-step explanation:

24 + (12.56637/2)

24 + 6.283185

30.283185

30.3 rounded to the nearest tenth

6 0
3 years ago
Describe the graph the inequality on a number line: -7 ≥ g - 21 I need help on this its due today and ill give large sum of poin
Gekata [30.6K]

Answer:

Step-by-step explanation:

5 0
3 years ago
What is the answer to K/2+1-1k=-2k
Mazyrski [523]

\dfrac{k}{2}+1-1k=-2k\\\\\dfrac{1}{2}k+1-k=-2k\\\\\left(\dfrac{1}{2}k-k\right)+1=-2k\\\\-\dfrac{1}{2}k+1=-2k\qquad\text{subtract 1 from both sides}\\\\-\dfrac{1}{2}k=-2k-1\qquad\text{add 2k to both sides}\\\\1\dfrac{1}{2}k=-1\qquad\text{convert the mixed number to improper fraction}\\\\\dfrac{1\cdot2+1}{2}k=-1\\\\\dfrac{3}{2}k=-1\qqua\text{multiply both sides by}\ \dfrac{2}{3}\\\\\boxed{k=-\dfrac{2}{3}}

4 0
3 years ago
The manager of an electronics store projects that the store should achieve more than $21,000 in revenue from TVs and DVD players
Alina [70]

Answer:

380d + 530t > 21,000

Step-by-step explanation:

Each DVD costs $380, we can represent that as:

380d

Each TV costs $530, we can represent that as:

530t

We add these together to find the total profit:

380d + 530t

The manager predicts that whatever the total profit is, will be more than $21,000. So, we represent that as this:

380d + 530t > 21,000

And that is the final answer.

<em>I hope this helps!!</em>

<em>- Kay :)</em>

7 0
3 years ago
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