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MAXImum [283]
3 years ago
10

How many Solutions does p + 9 = 2p - 3 have?​

Mathematics
2 answers:
ololo11 [35]3 years ago
6 0

Answer:

One solution

Step-by-step explanation:

Let's solve your equation step-by-step.

p+9=2p−3

Step 1: Subtract 2p from both sides.

p+9−2p=2p−3−2p

−p+9=−3

Step 2: Subtract 9 from both sides.

−p+9−9=−3−9

−p=−12

Step 3: Divide both sides by -1.

−p

−1

=

−12

−1

p=12

Answer:

p=12

mash [69]3 years ago
5 0

Answer:

one solution

Step-by-step explanation:

2p-p=9+3

p=12

so

just one solution

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The train at the zoo holds 36 people. Each row of seats in the train holds 4 people. How many rows of seats are there in the tra
charle [14.2K]
The answer is 9 because 4x9 is 36
7 0
2 years ago
Can someone pls help me answer this :/​
eimsori [14]

Answer:

y = - \frac{3}{2} x + 6

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (0, 6) and (x₂, y₂ ) = (4, 0) ← 2 points on the line

m = \frac{0-6}{4-0} = \frac{-6}{4} = - \frac{3}{2}

Since the line crosses the y- axis at (0, 6) ⇒ b = 6

y = - \frac{3}{2} x + 6 ← equation of line

5 0
3 years ago
A bag of coins contains pennies and nickels. There are 40 coins in all. The total value of the coins is $0.72. How many coins ar
vova2212 [387]

Answer:

Step-by-step explanation:

A penny is worth 1 cent. = 0.01p

A nickel is worth 5 cents = 0.05n

Let the number of pennies = x

Number of nickels = y

A bag of coins contains pennies and nickels. There are 40 coins in all. The total value of the coins is $0.72. How many coins are pennies, and how many are nickels? Write 2 equations.

5 0
3 years ago
You enter a chess tournament where your probability of winning a game is 0.3 against half the players (call them type 1), 0.4 ag
Doss [256]

The probability of winning is 0.44 .

<u>Step-by-step explanation:</u>

Here it's given that , You enter a chess tournament where your probability of winning a game is 0.3 against half the players (call them type 1), 0.4 against a quarter of the players (call them type 2), and 0.5 against the remaining quarter of the players (call them type 3). You play a game against a randomly chosen opponent. More precisely :

Probability(type1) = 0.3\\Probability(type2) = 0.4\\Probability(type3) = 0.5\\\\Probability(winning) = w

Now, we choose a random opponent and we need to find probability of winning which is possible as :

<u>1. player chosen from type1</u>

<u>2. player chosen from type2</u>

<u>3. player chosen from type3</u>

Combining all cases we get :

⇒ w = type1(1-type2)(1-type3) + (1-type1)type2(1-type3) + (1-type1)(1-type2)type3

⇒ w = 0.3(0.6)(0.5)+0.7(0.4)(0.5)+0.7(0.5)(0.6)

⇒ w = 0.44

∴ The probability of winning is 0.44 .

8 0
3 years ago
I need help with math homework algebra #4
sesenic [268]

Answer:

A. (-5, 0) and (1, -3)

B. Slope (m) = -½

C. y + 3 = -½(x - 1)

D. y = -½x - ⁵/2

E. ½x + y = ⁵/2

Step-by-step explanation:

A. Two points on the line from the graph are: (-5, 0) and (1, -3)

B. The slope can be calculated using two points,(-5, 0) and (1, -3):

slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{-3 - 0}{1 -(-5)} = \frac{-3}{6} = -\frac{1}{2}

Slope (m) = -½

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) = (1, -3), and m = -½ into the point-slope equation, y - b = m(x - a).

Thus:

y - (-3) = -½(x - 1)

y + 3 = -½(x - 1)

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 + 3 = -½(x - 1)

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

2y + 6 = -x + 1

2y = -x + 1 - 6

2y = -x - 5

y = -x/2 - ⁵/2

y = -½x - ⁵/2

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

y = -½x - ⁵/2

½x + y = ⁵/2

8 0
3 years ago
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