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3 years ago

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Mathematics

2 answers:

forsale [732]3 years ago

6 0

Answer:

I don't understand

Step-by-step explanation:

Phantasy [73]3 years ago

3 0

Answer:

Step-by-step explanation:

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15x+1200=y what is the change in the total cost for each book printed? What is the cost to get started before any books are prin

Mrac [35]

The total cost before books are printed is $1200 (the constant).

The change to the total cost is the x, which is a variable, and can change depending on the amount of books printed.

hope this helps

6 0

3 years ago

The figures in the picture are similar to each other find the value of x

alisha [4.7K]

Answer:

x = 7

Step-by-step explanation:

Similar figures have sides that are proportional. Setting up a proportion for the sides of the figures will help solve for 'x':

$\frac{small}{large}=\frac{3}{6}=\frac{(x-3)}{(x+1)}$

Cross-multiply: 3(x + 1) = 6(x - 3)

Distribute: 3x + 3 = 6x - 18

Combine like terms: 21 = 3x

Solve for 'x': x = 7

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3 years ago

Ten percent of U.S. households contain 5 or more people. You want to simulate choosing a household at random and recording "Yes"

Debora [2.8K]

Answer:

(b) 0 = Yes; 1-9 = No

Step-by-step explanation:

Among digits, 10% of 10 digits is a single digit. Any answer choice that suggests more than one digit be used for "yes" is not appropriate. A good choice is ...

0 = Yes; 1-9 = No . . . . . choice (b)

7 0

3 years ago

Check if 5/11 and 7/6 are rational numbers.

LekaFEV [45]

Answer:

they are rational numbers

Step-by-step explanation:

Any fraction with integers in numerator and denominator is a rational number.

5, 6, 7, 11 are integers, so the fractions 5/11 and 7/6 are rational numbers.

8 0

2 years ago

An escalator lifts people to the second floor of a building, 25 ft above the first floor. The escalator rises at a 30o angle. To

melamori03 [73]

Answer:

a person travel 50 ft from the bottom to the top of the escalator

Step-by-step explanation:

An escalator lifts people to the second floor of a building, 25 ft above the first floor. The escalator rises at a 30 degree angle

The escalator forms a right angle triangle

opposite to 30 degree angle is 25 feet. to find the distance from the bottom to the top of the escalator we find the hypotenuse

let x be the hypotenuse

$sin(theta)=\frac{opposite}{hypotenuse}$

$sin(30)=\frac{25}{x}\\x sin(30)= 25\\x=\frac{25}{sin(30)} \\x=50\\$

a person travel 50 ft from the bottom to the top of the escalator

6 0

3 years ago