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3 years ago

BRAINLESS!!! please answer and show your work for this

Mathematics

1 answer:

Gnom [1K]3 years ago

3 0

Answer:

All below

Step-by-step explanation:

1. Before tax

500*0.7 (30% off means 100%-30% of the price = 70% or 0.7) = $350

2. Final selling price

350*1.13 (100%+13% as the price after adding 13% of tax to subtotal) = $395.5

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Can you construct a triangle that has side lengths 2 yd, 9 yd, and 10 yd?

yan [13]

Yes

The rule to check if a triplet of numbers can represent the sides of a triangle is the following: the sum of the length of two sides must exceed the third one.

This happens for all possible couples in your case:

$2+9=11>10$

$2+10=12>9$

$9+10=19>2$

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3 years ago

In a bag of candy hearts the ratio of pink to green hearts is 3 to 5. If there are 35 green hearts, how many pink hearts are in

elixir [45]

Answer:

there are 21 pink hearts

Step-by-step explanation:

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3 years ago

Translate the sentence into an inequality. The sum of 2 and x is less than 29.

astraxan [27]

Answer:

2 + x < 29

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3 years ago

Solve for t 2t^2-14t+3=3

Dvinal [7]

Answer:

t=7,t=0

Step-by-step explanation:

2t^2-14t+3=3

Subtract 3 from both sides

2t^2 - 14t +3 - 3 = 3-3

Simpilfy

2t^2 -14t = 0

7 0

3 years ago

Determine whether the three points are collinear. (3, -10), (-2, -7), (0, -5)

Mumz [18]

The points are not collinear.

Solution:

Let A, B and C be (3, -10), (-2, -7) and (0, -5).

If slopes of any two points are same, then the points are collinear.

Slope formula:

$$m=\frac{y_2-y1}{x_2-x_1}$

Slope of AB:

$$m_1=\frac{-7-(-10)}{-2-3}$

$$m_1=\frac{-7+10}{-5}$

$$m_1=-\frac{3}{5}$

Slope of BC:

$$m_2=\frac{-5-(-7)}{0-(-2)}$

$$m_2=\frac{-5+7}{2}$

$$m_2=\frac{2}{2}$

$m_2=1$

Slope of CA:

$$m_3=\frac{-10-(-5)}{3-0}$

$$m_3=\frac{-10+5}{3}$

$$m_3=-\frac{5}{3}$

$m_1\neq m_2 \neq m_3$

Slope of AB ≠ Slope of BC ≠ Slope of AC

Therefore the points are not collinear.

6 0

3 years ago