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3 years ago

Which one of the following equations is equivalent to the equation ? A 6x−22=26x-22=2

Mathematics

1 answer:

mihalych1998 [28]3 years ago

8 0

We simplify the equation :

2(x+3) + 5x = 34

= 2x + 6 + 5x
= 7x + 6

So, 7x + 6 = 34
x = (34-6)/7 = 4

Equation A : 6x - 22 = 2
x = (22+2)/6 = 4 (so it's equvalent).

Equation B : x/5 = 4
x = 4 x 5 = 20 (not equivalent)

Equation C :
3x - 6 = 12
x = (12+6)/3 = 6 (not equivalent)

Equation D : 6x = 18
x = 18/6 = 3 (not equivalent)

So, it's equation A

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Zarrin [17]

Answer:

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8 0

3 years ago

What is x and y (use substitution?) 5x+3y=38 and y=3x+8?

Vika [28.1K]

Answer:

x = 1 and y = 11

Step-by-step explanation:

To start, let's substitute in y into the first equation. We will get 5x + 3 (3x + 8) = 38. Now, distribute the 3 in the 2nd term to get 5x + 9x + 24 = 38. Add like terms to get 14x + 24 = 38, and subtract 24 from both sides to get 14x = 14. Now, divide both sides by 14 to get x = 1. Plug this back in to get that y = 11.

6 0

3 years ago

A salesperson earns a base salary of $50,000 plus a commission of $300 for every unit sold. Which type of model best fits this s

timofeeve [1]

Answer:

Linear model.

Step-by-step explanation:

Let x be the number of units sold by salesperson.

We have been given that a salesperson earns a base salary of $50,000 plus a commission of $300 for every unit sold. So commission earned for x units will be 300x.

The total amount earned by salesperson after selling x units will be commission for x units plus base salary.

$\text{Total amount earned by salesperson}=300x+50,000$

We can see that the total income of salesperson is in slope-intercept form: $y=mx+b$ , where, m represents slope and b represents y-intercept.

Upon comparing the total income of salesperson with slope-intercept form of equation we can see that 300 is slope and 50,000 is y-intercept, therefore, a linear model will best fits the given situation.

7 0

3 years ago

What is the least common multiple you could use to find 4/5 + 5/6?

damaskus [11]

Tbh idk ask your teacher

4 0

4 years ago

The Pharmacy dispensing unit Depriciated in value by 25% during the first year unit was purchased for 28,000 what is the dispens

luda_lava [24]

25% of 28,000 is 7,000.
If the unit depreciated by 7,000, it is now worth 21,000.

5 0

3 years ago