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3 years ago

Help please can you solve this?im times so i need help fast.

Mathematics

1 answer:

zavuch27 [327]3 years ago

5 0

Answer:

C. 1 4 2

Step-by-step explanation:

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C Betty rearranged the movies on her shelving unit after a few days. She placed equal numbers of movies on the bottom 3 shelves,

mixas84 [53]

There are total 53 movies on the shelving unit

Step-by-step explanation:

DATA

Equal movies on the bottom 3 shelves: 3x

10 movies on each of the top 2 shelves = 2*10 = 20

Equation:

3x + 20

Question:

Number of movies on the shelving unit if 11 movies are on each bottom 3 shelves: x = 11

Solution:

3x + 20

3(11) + 20 = 33 + 20 = 53

Therefore, there are total 53 movies on the shelving unit; 20 on the top 2 shelves and 33 on the bottom 3 shelves altogether.

Keywords: equation

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5 0

3 years ago

Write the rule for the linear function. Remember a function rule is written using f(x)

Marina CMI [18]

Answer:

The rule for the linear function will be:

$f(x) = -2x+5$

Step-by-step explanation:

We know that linear function can be represented using the slope-intercept formula

y = mx+b

where m is the slope and b is the y-intercept

Given the function is linear

Taking two points from the table to determine the slope

(1, 3)

(2, 1)

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(1,\:3\right),\:\left(x_2,\:y_2\right)=\left(2,\:1\right)$

$m=\frac{1-3}{2-1}$

$m=-2$

Using the point-slope form of the line equation

$y-y_1=m\left(x-x_1\right)$

where m is the slope of the line and (x₁, y₁) is the point

substituting the values m = -2 and the point (1, 3)

$y-y_1=m\left(x-x_1\right)$

$y - 3 = -2 (x-1)$

$y-3 = -2x+2$

adding 3 to both sides

$y-3+3 = -2x+2+3$

$y = -2x+5$

$f(x) = -2x+5$

Therefore, the rule for the linear function will be:

$f(x) = -2x+5$

4 0

3 years ago

If 4 + x = −3 + 2x, then 9x =_____?

gayaneshka [121]

Answer:

4+x=-3+2x

4+3=2x-x

7=x

9x=9*7

=63

Step-by-step explanation:

8 0

2 years ago

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The measure of one of the acute angles in a right triangle is given. what is the measure of the other angle?

yuradex [85]

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3 years ago

Simplify. [72/(-9)]/(-1/3)

Nutka1998 [239]

Answer:

Step-by-step explanation:

(72/-9) / (-1/3)

72/-9) x (-3/1)

(72)*(-3) = - 216/ -9

= 24

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2 years ago