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cricket20 [7]
3 years ago
11

What's five pencils for $15 written as a rate?

Mathematics
1 answer:
max2010maxim [7]3 years ago
6 0

5*15=75

]since 15 is the rate of the money used for one pencil

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Help please. this is really hard for me to understand.
bogdanovich [222]

Answer:

1. x = - 4, - 3

2. x = 9, - 1

3. x = - 1, 10

4. x = - 8, - 3

8 0
3 years ago
Select the correct answer from each drop-down menu.
GrogVix [38]

Answer:

The answer to your question is x-axis, y-axis

Step-by-step explanation:

To answer this question just remember the equation of the slope

          m = \frac{y2 - y1}{x2 - x1}

Then:

If the numerator is zero, the line is parallel to the x-axis  and the slope will be zero.

If the denominator is zero, the line is parallel to the y-axis and the slope will be undefined.

4 0
3 years ago
Read 2 more answers
A triangle has the side lengths 5,7 and 11
Assoli18 [71]

To solve this problem you use the "Triangle Inequality Theorem" it states that: any side of a triangle is always shorter than the sum of the other two sides. 

Using this theorem we check each side 

5+7=12: this is greater than the other side which is 11, so this works 

11+7= 18: this is greater than the other side which is 5, so this works 

5 + 11= 16: this is greater that the other side which is 7, so this works 

4 0
3 years ago
Using the Pythagorean theorem, find the length of c if a = 14 * the square root of 3 and b = 34
ANEK [815]

If c is the hypotenuse, we have

c=\sqrt{a^2+b^2}=\sqrt{(14\sqrt{3})^2+34^2}=\sqrt{588+1156}=\sqrt{1744}

If instead b is the hypothenuse, you have

c=\sqrt{b^2-a^2}=\sqrt{1156-588}=\sqrt{568}

5 0
3 years ago
Clare estimates that her brother is 4 feet tall. When they get measured at the doctor’s office, her brother’s actual height is 4
attashe74 [19]

Her error in terms of inches was 2 inches while her percent error was 4.166%

Step-by-step explanation:

Step 1; From the given data Claire estimated her brother to be shorter than he actually was. She estimated his height to be 4 feet while it was actually 4 feet 2 inches.

We convert the feet into inches because 12 inches are equal to a feet.

4 feet = 4 × 12 inches = 48 inches

4 feet 2 inches = (4 × 12 inches) + 2 inches = 48 + 2 = 50 inches

Error in terms of inches = 50 inches - 48 inches = 2 inches.

Step 2 ; Her percent error is given by dividing the difference in values by the actual value multiplied by 100.

% error = (difference in values / actual value) × 100

Claire's % error = (50 - 48)/ 48 × 100 = 2/48 × 100 = 0.04166 × 100 = 4.166%.

4 0
3 years ago
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