A store advertise 15% off an item that regularly sells for 300$. What is the sale price of the item

Mathematics

2 answers:

erik [133]3 years ago

7 0

Answer:

255

Step-by-step explanation:

(1-15%)a=300

a=255

svlad2 [7]3 years ago

5 0

Answer:255

Step-by-step explanation: 15% is 0.15. So to find what 15% of 300 is, you do 300 x 0.15. Which is 45. So 300-45=255.

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lisabon 2012 [21]

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3 years ago

Indicate the equation of the given line in standard form.

Lorico [155]

We have that
<span>triangle ABC
where
A(-5, 5), B(1, 1), and C(3, 4) are the vertices

using a graph tool
see the attached figure

the hypotenuse is the segment AC

find the equation of the line AC
</span>A(-5, 5) C(3, 4)
<span>
step 1
find the slope m
m=(y2-y1)/(x2-x1)-----> m=</span>(4-5)/(3+5)-----> m=-1/8

step 2
with C(3,4) and m=-1/8
find the equation of a line
y-y1=m*(x-x1)-----> y-4=(-1/8)*(x-3)----> y=(-1/8)*x+(3/8)+4
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the standard form is Ax+By=C
so
x+8y=35
A=1
B=8
C=35

the answer is
x+8y=35