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klemol [59]
3 years ago
12

A scatter plot was made to show the value of certain cars based on the age of the car in years. The equation of the scatter plot

's trend line is y = -1,700x +
32,000 where y is the value of the car in dollars, and x is the age of the car in years.
Use the trend line equation to predict the value of a car after 7 years.
O A. $18.82
O B. $18,820
O C. $25,000
O D. $20,100
Mathematics
2 answers:
Mashutka [201]3 years ago
6 0
Am not sure but I think it C
ozzi3 years ago
4 0

Answer:

I think it's D.

Step-by-step explanation:

So if the x is -1,700 and it stands for the years, then times it by 7. That would make -11,900. After you times it, add the 32,000 dollars and you would get $20,100. (I might have done the math wrong but I think this is the answer,)

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Sue buys 5 pieces of fabric.Each piece is 1 7/10 yards long.What is the total length of the fabric she buys?One yard of the fabr
Bumek [7]

Answer:

1. 8.5 yards.

2. $42.5

Step-by-step explanation:  

We have been given that Sue buys 5 pieces of fabric. Each piece is 1\frac{7}{10} yards long.

1. To find the total length of fabric bought by Sue we will multiply length of each fabric piece by 5.

\text{Total length of the fabric}=5\times 1\frac{7}{10}\text{ yards}

\text{Total length of the fabric}=5\times \frac{17}{10}\text{ yards}

\text{Total length of the fabric}=\frac{17}{2}\text{ yards}

\text{Total length of the fabric}=8.5\text{ yards}

Therefore, Sue bought 8.5 yards of fabric.

2. 1 yard of fabric costs $5.

So 8.5 yards of fabric will cost : 5*8.5

\text{Total cost of the fabric}=5\times 8.5

\text{Total cost of the fabric}=42.5

Therefore, the cost of total fabric bought by Sue is $42.5.

8 0
3 years ago
The number of letters in Stephanie's full name is sixteen less than twice the number of letters in Amy's full name. If the numbe
Anestetic [448]

Answer:

19 letters

Step-by-step explanation:

Suppose Number of Amy's full name letters = X

               Number of Stephanie's full name letters = Y

Now, according to given condition that ''number of letters in Stephanie's full name is sixteen less than twice the number of letters in Amy's full name'',

Equation 1 becomes

Y = 2X-16

Now, according to second condition, product of their names' letter is 418. So,

Equation 2 becomes

XY = 418

Deducing value of X from equation 1,

X = (Y+16)/2

Putting this value in equation 2 we get,

{(Y+16)/2}*Y = 418,

By simplifying this equation we get a quadritic equation

(Y^2)+16Y-836=0

By breaking middle term (You can use quadratic formula here as well)

(Y^2)+38Y-22Y-836=0

Y(Y+38)-22(Y+38)=0

(Y-22)(Y+38)=0

At this stage we have two values for Y,

Y=22, or Y=-38

Now considering only positive value since the number of letters in a name can not be in negative number,

Y=22,

So X=(Y+16)/2

X=19

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3 years ago
15000(0.068÷12)(1+0.068÷12)^12×4(1+0.068÷12)^12×4 -1​
zhuklara [117]

Answer: 1556.52935024

Step-by-step explanation: Pemdas

According to Khan Academy, "The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression. We can remember the order using PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)."

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2 years ago
What is the y-coordinate of the point shown in the graph?
murzikaleks [220]

Answer:

3,-7

Step-by-step explanation:

3 0
3 years ago
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