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QveST [7]
3 years ago
10

Anderson has $50 in his savings account. He deposits $5 every week. His father also deposits $20 into the account every time And

erson mows the lawn. His savings account balance can be shown with the following expression:
50 + 5w + 20m

Part A: Identify a coefficient, a variable, and a constant in this expression. (3 points)

Part B: If Anderson saves for 10 weeks and mows the lawn 2 times, how much will he have in his account? Show your work to receive full credit. (4 points)

Part C: If Anderson had $85 in his savings account, would the coefficient, variable, or constant in the expression change? Why? (3 points)
Mathematics
2 answers:
Sav [38]3 years ago
8 0

Part A: 5 is the coefficient, w is the variable, 50 is the constant

Part B: 10 x 5 = 50 + 2 x 20 = 40+ 50 = $140

Part C: the constant,50,would change and become 85.  Hope this helps :)
mylen [45]3 years ago
3 0
Part A is W and M because those are the coefficient variable and constant.

Part B  10*5=50 ~20*2=40 50+40=90

part c  it would change to 85

I really hope this helps you ^-^

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What do you do when your getting bullied?
GuDViN [60]

If you’re being bullied there’s a lot you can do. While different tactics work for different people, the first thing you should do is try to work it out yourself.

Depending on how bad the bullying is (and as long as you don’t feel at risk, scared or physically threatened) you might want to try and work it out yourself – as a first step.

The more empowered you are, and the more you can help yourself, the better chance you have to stop the bully.

If the bully doesn’t change their behavior, that’s when talking to someone else can be really helpful.

The bully wants you to react. Their goal is to take away your power, make you sad and scared. And if you show them you are not sad and scared, they will often lose interest and they cannot take away your power.

Remember they want to upset you constantly so you get angry. If you don’t get angry, the bully will lose their own power.

Remember that bullies are human - they eat, sleep and live just like you do. The only difference is that you are NOT a bully! Bullies act the way they do because they lack the attention or parental love and nurturing that you have. They are insecure and bully only to feel powerful.

Bullies look for a reaction from you and often lose interest if they aren't given the satisfaction of getting one.

8 0
3 years ago
Read 2 more answers
Pete glues a rope around his rectangular rodeo sign. His sign has side length of 2 feet and 3 feet.The rope cost $4 for each foo
andreyandreev [35.5K]

Answer:

$20 because 2x4=8 3x4=12 12+8=20

Step-by-step explanation:

8 0
4 years ago
/// WORTH 70 points /// ASAP ////
belka [17]

A community is developing plans for a pool and hot tub. The community plans to form a swim team, so the pool must be built to certain dimensions. Answer the questions to identify possible dimensions of the deck around the pool and hot tub.


Part I: The dimensions of the pool are to be 25 yards by 9 yards. The deck will be the same width on all sides of the pool. Including the deck, the total pool area has a length of (x + 25) yards, and a width of (x + 9) yards.

Write an equation representing the total area of the pool and the pool deck. Use y to represent the total area. Hint: The area of a rectangle is length times width. (1 point)

y = (x+25)(x+9)


Rewrite the area equation in standard form. Hint: Use the FOIL method. (1 point)


y = x^2 + 9x + 25x + 9(25)


y = x^2 +34x + 225


Rewrite the equation from Part b in vertex form by completing the square. Hint: Move the constant to the other side, add to each side, rewrite the right side as a perfect square trinomial, and finally, isolate y. (4 points: 1 point for each step in the hint)


y-225 = x^2 +34x


y-225 + 17^2 = x^2 +34x + 17^2


y-225 + 289 = (x+17)^2


y = (x+17)^2 - 64


What is the vertex of the parabola? What are the x- and y-intercepts? Hint: Use your answer from Part a to identify the x-intercepts. Use your answer from Part b to identify the y-intercept. Use your answer from Part c to identify the vertex. (4 points: 1 point for each coordinate point)

The vertex is where the squared term is zero, x=-17 , y =-64, (-17,-64)


The y intercept is y at x=0, so (0,225)


The x intercepts are the zeros; so at x=-25 and x=-9, aka (-25,0), (-9,0)


Graph the parabola. Use the key features of the graph that you identified in Part d. (3 points)


[Plot the points we generated and connect the dots. I'll leave the graphing to you]

In this problem, only positive values of x make sense. Why? (1 point)

<em>x</em> is the width of the pool edge; it must be positive.


What point on your graph shows a total area that includes the pool but not the pool deck? (1 point)


x=0, y=225 i.e. (0,225)



The community decided on a pool area that adds 6 yards of pool deck to both the length and the width of the pool. What is the total area of the pool and deck when x = 6 yards? (2 points)


(9+6)(25+6)=15(31)=465



Part II: A square hot tub will be placed in the center of an enclosed area near the pool. Each side of the hot tub measures 6 feet. It will be surrounded by x feet of deck on each side. The enclosed space is also square and has an area of 169 square feet. Find the width of the deck space around the hot tub, x.

Step 1: Write an equation for the area of the enclosed space in the form y = (side length)2. Hint: Don't forget to add x to each side of the hot tub. (1 point)



y=(x+6)(x+6)=(x+6)^2



Step 2: Substitute the area of the enclosed space for y in your equation. (1 point)


169 = (x+6)^2


Step 3: Solve your equation from Part b for x. (3 points)


x + 6 = \pm \sqrt{169}


x = -6&#10; \pm 13


x= 7 \quad \textrm{ or } \quad x= -19


Step 4: What is the width of the deck around the hot tub? Hint: One of the answers from Part c is not reasonable. (1 point)


Only the positive root works,


x=7 feet


5 0
3 years ago
Jack bought 4 bagels for 3.00. how many bagels can he buy for 4.50?
bija089 [108]

Answer:

The answer is

<h2>6 bagels</h2>

Step-by-step explanation:

In order to solve this problem we use ratio and proportion

From the question

He used 3.00 to buy 4 bagels

Then 4.50 will be

\frac{4.5 \times 4}{3}  \\  =  \frac{18}{3}

We have the final answer as

<h3>6 bagels</h3>

Hope this helps you

6 0
3 years ago
Read 2 more answers
/viewform?hr submission=Chclk4feKBIQ.
Gennadij [26K]

Answer:

c) .22

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

In this question:

\sigma = 2.5, n = 500

Then

M = z*\frac{\sigma}{\sqrt{n}}

M = 1.96*\frac{2.5}{\sqrt{500}}

M = 0.22

5 0
4 years ago
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