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JulsSmile [24]
3 years ago
11

I feel real d.umb for asking this much of questions but tbh I don’t like algebra, my math teacher doesn't like me and she never

taught me any of this stuff so she wants me to turn all of it in today ‘-‘ At this point you can say I’m not smart all you want, I just need help with this. Pls and ty?

Mathematics
1 answer:
Iteru [2.4K]3 years ago
4 0

Answer:

the first one is x=3

Step-by-step explanation:

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Checking account A charged a monthly fee of $5 and a per-check fee of $0.25, and checking account B charged a monthly fee of $6
Genrish500 [490]
First we need to know both the formula of A and B.

The formula of A is
C = 5 + 0.25p
with C representing total cost and p representing the amount of checks.

The formula of B is
C = 6 + 0.15p
with C representing total cost and p representing the amount of checks.

To find the point where A and B cost the same, we solve the following equation:
5 + 0.25p = 6 + 0.15p

Collecting terms gives us
-1 = -0.1p

Now we have to divide by -0.1 and we get.
10 = p
p = 10

So our answer: after 10 checks both accounts cost the same amount of money. Answer A.
7 0
3 years ago
WILL BE MARKED BRAINLIEST!!!! <br> x-y=4 <br> How do you get the y alone?
yanalaym [24]

The answer is y = x-4.

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

  • The given expression is x-y=4
  • Keep y alone on one side and move remaining terms to the other side.

⇒ -y = 4-x

  • To have y alone, Multiply the above expression with -ve sign on both sides.

⇒ y = x-4

5 0
3 years ago
NASA is building a satellite that is roughly the shape of a sphere. If the satellite weighs 14.25 pounds per cubic foot before l
klasskru [66]

Answer:

774 lb

Step-by-step explanation:

weight = volume * density

radius = diameter/2

volume = (4/3)πr^3

volume = (4/3)(3.14)(4.7/2 ft)^3

weight = (4/3)(3.14)(4.7/2 ft)^3 * 14.25 lb/ft^3

weight = 774 lb

6 0
4 years ago
(y^-1/2)^4 <br>rewrite the expression in the form of y^n <br>PLEASE I NEED HELP ​
Zina [86]

Answer: 1/(Y^2) or if you want in y^n is y^2

apply exponents law (a^b) ^c  = a^b c

take off the parenthesis

1/2 · 4

1 · 4/(2)

4/2

divide it

4/2= 2, nevertheless it become -2

y^-2

1/(y^2)

3 0
3 years ago
Write an equation in slope intercept form that passes through the points ( 3,9) and (4,6)
kobusy [5.1K]
Hello!

To write this equation, let's first find the slope using the formula \frac{y_{2} - y_{1} }{x_{2} - x_{1}}. 

Plug in the values

\frac{6 - 9}{4 - 3}

Now solve to find our slope.

\frac{6 - 9}{4 - 3} = \frac{-3}{1}

<u />Your slope is -3.

Plug that into slope-intercept equation.

y = -3x + b

Now we find our y-intercept by plugging in a y-coordinate for the y value in the equation. I'll use 6

4 = -3x + 6 6 = -3(4) + b&#10;&#10;6 = -12 + b &#10;&#10;6/6 = -12/6 + b&#10;&#10;-2 = b

Your y-intercept is -2.

Your equation is y = -3x - 2


3 0
3 years ago
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