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Sonbull [250]
3 years ago
12

-10+5=7x-4how to i explain this step by step​

Mathematics
2 answers:
olasank [31]3 years ago
8 0

Answer:

5/7 x 4 = 2.8571 in decimal form.

o-na [289]3 years ago
6 0

Answer:

x = -1/7

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS =

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

& is the order of operation.

First simplify the expression to the left: -10 + 5 = 5 - 10 = -5

-5 = 7x - 4

Next, isolate the variable, x. Do the opposite of PEMDAS. Add 4 to both sides:

-5 (+4) = 7x - 4 (+4)

-5 + 4 = 7x

-1 = 7x

Divide 7 from both sides:

(-1)/7 = (7x)/7

-1/7 = x

x = -1/7

~

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ipn [44]

Answer:

Yes they are equivalent.

Step-by-step explanation:

since 16 times 3/4 is 12 and a times b is ab. Put those together and you get 12ab. Since 3/4 of 24 is 18 and the variable is a, it is 18a. Hope this helped.

5 0
3 years ago
Sharon makes $1250 per month plus 20% per month plus 15% commission. If they both sold $20000, who made more money that month?
REY [17]
You type "they both ... "    This indicates that there are TWO people involved, not just one.  

"<span>plus 20% per month plus 15% commission" isn't quite clear.  Is that 20% of the base pay ($1,250)?  I assume that the 15% commission is figured on the sales ($20,000)

Please clarify this as much as you can.</span>
4 0
4 years ago
Find the inverse of this function. Show your steps.
PolarNik [594]

Answer:

Step-by-step explanation:

First, replace f(x) with y . ...

Replace every x with a y and replace every y with an x .

Solve the equation from Step 2 for y . ...

Replace y with f−1(x) f − 1 ( x ) . ...

Verify your work by checking that (f∘f−1)(x)=x ( f ∘ f − 1 ) ( x ) = x and (f−1∘f)(x)=x ( f − 1 ∘ f ) ( x ) = x are both true.

7 0
3 years ago
4(2x-3) is greater than or equal to 4(x-4)
mylen [45]

Answer:    x ≥ -1

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

4(2x - 3) ≥ 4(x - 4)

8x - 12 ≥ 4x - 16       <em>distributed 4 into 2x - 3</em>

4x - 12 ≥ -16              <em>subtracted 4x from both sides</em>

4x ≥ -4                       <em>added 12 to both sides</em>

 x ≥ -1                        <em>divided both sides by 4</em>


Graph:    -1 -------------→

Interval Notation: [ -1, ∞ )

8 0
4 years ago
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babunello [35]

Answer:

The answer is below

Step-by-step explanation:

Motion shows the change in the position of an object over time. This change is showed in terms of displacement, distance, velocity, acceleration, time and speed. The equations of motion shows this relationship.

Since the soccer ball is kicked up with an initial velocity (u) of 15 m/s, the acceleration due to gravity (g) acts on the ball. If the ball is kicked at an angle Θ, the time t it takes for the ball to reach the ground is:

t=\frac{2u*sin(\theta)}{g} \\\\t=\frac{2(15)*sin(\theta)}{g} \\\\t=\frac{30*sin(\theta)}{g} \\\\If\ it\ is\ kicked\ vertical\ then\ \theta=90^0,hence:\\\\t=\frac{30*sin(90)}{g}= \frac{30}{g }

7 0
3 years ago
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