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zimovet [89]
3 years ago
7

The store bought a pair of shoes for $50, and sold it for $80.What percentage was the mark up

Mathematics
1 answer:
Charra [1.4K]3 years ago
6 0
30% percent is what they marked up
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Determine the intercepts of the line.<br> y=5x-13<br><br> Y-Intercept ( , )<br> X-Intercept ( , )
Arte-miy333 [17]

Answer:

Y-intercept is (0, -13)

X-intercept is at (13/5, 0)

Step-by-step explanation:

When it's in this form, y = mx + b, you automatically know what the y-intercept is (b).

So the y-intercept is (0, -13)

To algebraically find this, you'd plug in a 0 for x, since the y intercept is when it crosses the y-axis, which is located at x = 0.

To find the x intercept, you'd do the opposite of the y-intercept, which is plugging in a 0 for y and solving for x. The x-axis is located at y = 0.

0 = 5x - 13

13 = 5x

x = 13/5

The x-intercept is at (13/5, 0)

I hope this helped!

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3 years ago
Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y). x = y + 6 y = -2 - x
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The shorter side of a triangle ABC is half of the second side and a third of the longest side how does the perimeter of the tria
mash [69]
More information pls
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If ax^3+9x^2+4x-10 when divided by x-3 leaves the reminder 5,then a=​
FinnZ [79.3K]

Let f(x) = ax³ + 9x² + 4x – 10

g(x) = 0⇒x - 3 = 0

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On dividing f(x) by x - 3, it leaves a remainder 5.

Now keeping, f(3) = 5

⇒a(3)³ + 9(3)² + 4(3) - 10 = 5

⇒ a × 27 + 9 × 9 + 4 × 3 - 10 = 5

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⇒ 81 + 12 - 10 - 5 = 27a

⇒ 81 + 12 - 15 = 27a

⇒ 93 - 15 = 27a

⇒ 78 = 27a

⇒ a = 27/78

⇒ a = 0.3461

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3 years ago
Raj weighs a book and rounds the weights to the nearest tenth. Does this weight round to 1.5 pounds?
Lelu [443]

Answer:

True

Step-by-step explanation:

1.45 the 5 is equal/above it so it is true

7 0
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