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3 years ago

Which set includes rational numbers but not natural numbers

Mathematics

1 answer:

lapo4ka [179]3 years ago

8 0

Answer:

The first option (-6 2/3, -2, 5/11, 7/8)

Step-by-step explanation:

This set of numbers is the only one that does not contain any positive numbers.

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Sarah is the president of the drama club and wants to publish a newspaper. Expenses are $.90 for printing and mailing each copy,

larisa86 [58]

Let: x = number of copies sold

We can formulate the following equation to solve for x:

1.50x - 0.9x - 600 = 0

x = 1000

Therefore, the club must sell 1000 copies to break even. Among the choices, the correct answer is A.

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3 years ago

Graph an inequality on a number line: 15>m

barxatty [35]

When the sign is ≤ or ≥ ("less/greater than <u>or equal to</u>"), the dot if filled in.

When the sign is < or >, the dot is not filled in/open circle.

15 > m

[15 is greater than m, or m is less than 15]

Since m is less than 15, the arrow is going to the left (the numbers to the left are less than 15)

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3 years ago

The cost of dinner for Mr. and Mrs. Manning was $34.00, but with the tip, they spent $39.10. What percent tip did they give, rou

Dafna11 [192]

Mr. and Mrs. Manning tipped 15%.

8 0

3 years ago

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A ladder is placed against a wall such that the top is 8 feet above the ground. If the ladder is 10 feet long, how far away from

Annette [7]

Answer:

6 feet

Step-by-step explanation:

Consider the right triangle formed by the wall, ladder and ground.

Let the distance the ladder is from the wall be d , then

Using Pythagoras' identity in the right triangle

The square on the hypotenuse ( ladder) is equal to the sum of the squares on the other 2 sides ( wall and d ), then

d² + 8² = 10²

d² + 64 = 100 ( subtract 64 from both sides )

d² = 36 ( take the square root of both sides )

d = $\sqrt{36}$ = 6

That is the ladder is 6 feet away from the wall

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3 years ago

A house painter was told by his boss to purchase enough paint to cover 75 square feet to finish a project. The house painter hap

Rama09 [41]

It must be noted that the area of the square is calculated through the equation,
A = s²
where A is area and s is the measure of one side of the square.
To determine the measure of one side of the square, we simply have to get the square root of the area,
s = √A
Substituting the known value,
s = √75 ft² = 5√3 ft ≈ 8.66 cm
Thus, the answer to this question is approximately 8.66 cm.

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3 years ago

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