Alison is selling and buying baseball cards online. She sells each card for $3.25 and buys each card for $5.50. If she sold 4 cards and bought 7 cards, did she end up making money or spending money and how much money did she spend or make

Answers

Answer 1

Answer: spends money, spends $25.50

Answer 2

Answer: She sold 13$ worth of cards and she bought 38.50$ worth of cards. She ended up spending more money than she made

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The vertex of this parabola is at (4, -3). When the x-value is 5, the y-value is -6. What is the coefficient of the squared expression in the parabola s equation?

Does anyone know what k+2x=3 Does anyone know the answer?

Answers

Answer:

You can only be able to solve two variables, k and x based on what you input as your question

k= -2x+3

x= (3-k)/2

X=1 K=1

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When conducting an observational study, it is important to choose a topic, select a variable, create a hypothesis, collect the data, and analyze the data for validity of the hypothesis. Which additional step is also crucial to the success of the study?Observational study
Nonrandomized study
Sample survey
Experimental study

Answers

The right answer for the question that is being asked and shown above is that: "Nonrandomized study."

The additional step is also crucial to the success of the study is that Nonrandomized study. When conducting an observational study, it is important to choose a topic, select a variable, create a hypothesis, collect the data, and analyze the data for validity of the hypothesis.

Solve the equation by taking the square root 4(x+1)^2=100

Answers

Answer:

Step-by-step explanation:

4(x+1)²=100

(x+1)²= 5²

(x+1)²- 5² = 0

(x+1-5)(x+1+5) = 0 by identity : a² - b ² = (a - b) (a+b)

(x - 4 ) (x+6) =0

x - 4 = 0 or x+6 = 0

x = 4 or x = - 6

Rewrite the radical expression as an expression with a rational exponent. the seventh root of x to the third power

Answers

Answer:I think it’s 7x^3

Step-by-step explanation:

NEED HELP NOW!! Will give 20 extra PTS to the best answercomplete the solution of the equation. Find the value of y when x equals -8.
4x + 9y = -14

Answers

To find the value of y, you need to plug a value into the x variable, in this case -8.

4x + 9y = -14 Substitute -8 for x
4 (-8) + 9y = -14 Multiply
-32 + 9y = -14 Start isolating the variable by adding 32 to both sides
9y = 18 Divide both sides by 9
y = 2

When x = -8, y = 2

25d-16=4d+26
whats d?

Answers

Like terms are when the variable you have are the same. In this case it is x. Therefore, when you have like terms, you should add, or subtract your like terms.

(note: When you move one thing to the other side of the equation, make sure to do the opposite of the sign. i.e. if it is +26 when you move to the other side it will be -26).

25d-16=4d+26
25d-16+16=4d+26+16
25d=4d+26+16
25d-4d=4d-4d+26+16
25d-4d=26+16
21d=42
this is the same as:
21*d=42
the opposite of multiply is divide so when we move the 21 it has to be divide
21/21*d=42/21
d=2

For this question you should first add -4d on both sides of the equation and then add +16 on both sides:
25d - 4d = 26+16
21d = 42
d = 42/21
d = 2 :)))
I hope this is helpful
have a nice day

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