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topjm [15]
2 years ago
9

$725 before sales tax of 6% was added. How much was the sales tax?

Mathematics
1 answer:
likoan [24]2 years ago
4 0

Answer: $768.50

Step-by-step explanation:

If $725 was the price before sales tax, $768.50 would be the total amount after the 6% sales tax increase.

***If you found my answer helpful, please give me the brainliest. :) ***

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Hep with this please
pishuonlain [190]

Answer:

x = 23

Step-by-step explanation:

6x+19+x = 180

7x = 180 - 19

7x =  161

x = 161/7

x = 23

6 0
2 years ago
2,300+-2,500+3,300+-2,600+6,250
Lorico [155]
1 Simplify

<span><span>2300−2500+3300−2600+6250</span>
2 Simplify

<span><span>6,750

I hope this helps. 

Have a awesome day. :)

</span><span>
</span></span><span>

</span></span>
5 0
3 years ago
Read 2 more answers
The hypotenuse of a right triangle is 10cm long. The longer leg is 2cm longer than the shorter leg. Find the side lengths of the
Crazy boy [7]
We need Pythagoras theorem here
a^2+b^2 = c^2
a, b =  legs of a right-triangle
c = length of hypotenuse

Let S=shorter leg, in cm, then longer leg=S+2 cm
use Pythagoras theorem
S^2+(S+2)^2 = (10 cm)^2
expand (S+2)^2
S^2 +   S^2+4S+4  = 100 cm^2   [collect terms and isolate]
2S^2+4S =  100-4 = 96 cm^2
simplify and form standard form of quadratic
S^2+2S-48=0
Solve by factoring
(S+8)(S-6) = 0   means (S+8)=0, S=-8
or                                   (S-6)=0, S=6
Reject nengative root, so
Shorter leg = 6 cm
Longer leg = 6+2 cm = 8 cm
Hypotenuse (given) = 10 cm

5 0
2 years ago
Find the vertex of the graph of f(x) = x2 + 4x - 5.
Fofino [41]
You can solve this in two ways.

1. Graphical. Plot the graph for x between -5 and 1 (see attachement).
The vertex of the graph is the peak of the curve, which has the coordinates x=-2, y=-9.

2. Analytical. Calculate the derivative of the function f(x)
\frac{df}{dx}=2x+4
Solve the equation:
2x+4=0
will give the solution x=-2.
Replace x=-2 in the f(x) function and you'll get the value of y:
(-2)^2+4 \cdot (-2)-5=4-8-5=-9

You get the same answer: x=-2, y=-9

So the answer is
<span>B. (-2, -9)</span>

7 0
3 years ago
PLEASE HURRY, ZOOM IN TO SEE IT BETTER
zlopas [31]

Answer:

(2,7)

Step-by-step explanation:

You read it from the point were they intersect

6 0
3 years ago
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