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kodGreya [7K]
3 years ago
14

What is 3(2x +7x - 5 )

Mathematics
2 answers:
erica [24]3 years ago
6 0

Answer:

x = 15/27

Step-by-step explanation:

3(2x + 7x - 5)

Distribute the 3

6x + 21x - 15

Combine like terms

27x - 15 = 0

27x = 15

x = 15/27

Free_Kalibri [48]3 years ago
4 0

Answer:

27x - 15 is your expression

Step-by-step explanation:

3 x 2x = 6x and 3 x 7x = 21x so 21x + 6x = 27x and 3 x 5 = 15 so 27x - 15 is your expression

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If the probability of rain ia 0.87, what is the probability of NO rain? HELP
Alex777 [14]

An event will definitely either happen or not happen.

The total probability of it (happening or not happening) is 100%.

So if the probability of it happening is 87%, then the probability of it
NOT happening is
                                 (100% - 87%) = 13% .

7 0
3 years ago
You buy boxes of strawberries at the market. Each box costs $6. Write an equation for the number of dollars, d, you spend on b b
likoan [24]

Answer:

$6 = 1

$576/$6 = 96 <-- Amount of boxes you could buy

Step-by-step explanation:

To find the number of boxes you could buy, take the total ($576) and divide it by the price per box

Hope this helped! :)

3 0
3 years ago
I need help with math homework
kobusy [5.1K]

Answer:

A. (0, 1) and (2, -2)

B. Slope (m) = -³/2

C. y + 2 = -³/2(x - 2)

D. y = -\frac{3}{2}x + 1

E. \frac{3}{2}x + y = 1

Step-by-step explanation:

A. Two points on the line from the graph are: (0, 1) and (2, -2)

B. The slope can be calculated using two points, (0, 1) and (2, -2):

slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{-2 - 1}{2 - 0} = \frac{-3}{2} = -\frac{3}{2}

Slope (m) = -³/2

C. Equation in point-slope form is represented as y - b = m(x - a). Where,

(a, b) = any point on the graph.

m = slope.

Substitute (a, b) = (2, -2), and m = -³/2 into the point-slope equation, y - b = m(x - a).

Thus:

y - (-2) = -³/2(x - 2)

y + 2 = -³/2(x - 2)

D. Equation in slope-intercept form, can be written as y = mx + b.

Thus, using the equation in (C), rewrite to get the equation in slope-intercept form.

y + 2 = -³/2(x - 2)

2(y + 2) = -3(x - 2)

2y + 4 = -3x + 6

2y = -3x + 6 - 4

2y = -3x + 2

y = -3x/2 + 2/2

y = -\frac{3}{2}x + 1

E. Convert the equation in (D) to standard form:

y = -\frac{3}{2}x + 1

\frac{3}{2}x + y = 1

8 0
3 years ago
What is tanC ?<br><br> Express your answer as a simplified fraction.
Zepler [3.9K]

Answer:

tan C = 1/2

Step-by-step explanation:

The tan function in a right triangle is the opposite side over the adjacent side

tan C = 11/22

We can divide the top and bottom by 11

tan C = 1/2

7 0
3 years ago
Read 2 more answers
I needddddddd helppppppp.
Setler [38]

Answer:

129

Step-by-step explanation:

34+17 = 51

180 - 51 = 129

4 0
3 years ago
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