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aleksandrvk [35]
3 years ago
10

If y is directly proportional to x and Y = 40 when x=4 what is the value of x when y =23

Mathematics
1 answer:
ale4655 [162]3 years ago
7 0

Answer:

Step-by-step explanation:

X∝Y

4∝40

X∝23

(23×4) ÷ 40 = 2.3

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Data will be collected on the following variables. Which variable can be considered discrete? A. The height of a person B . The
kvv77 [185]

Answer: E: The number of books a person finished reading last month

Step-by-step explanation:

First, a discrete variable is a variable that only can take some given values in a set, the discrete variables are usually not dense, and a continuous variable is a variable that can take any value in a range (where the accepted values are dense).

So, for example, the set of the natural numbers is discrete, and the set of the real numbers can represent a continuous variable.

Here the only option that is really discrete will be the number of books that a person finished reading last month because here only positive whole numbers are accepted (you can not finish a 0.454 of a book)

The other options are continuous because all are classical measures.

For example, the weight of a person can jump between:

75.6kg and 75.7kg.

So you could think that this is discrete because the values between 75.6kg and 75.7g are not shown with our measuring device, but those will be added in the error of the measure because the weights between 75.6kg and 75.7kg are actually possible, so they must be accepted.

4 0
3 years ago
-3x + 4y = 12; 3x - 5y = 18<br> Solve
viktelen [127]
X = -44
y = -30

Solve for y in equation 1.
Plug in the new value for y into equation 2 to solve for x.
Next, plug your x value into either equation to find y. You can choose either, but I picked the 1st equation.

Check out pic!

3 0
3 years ago
Your parents car initially costs $18,000 and it depreciates at a rate of 12% a year. How much will the car be worth after 5 year
coldgirl [10]

Answer:

Step-by-step explanation:

value after five years = $18,000×(1-0.12)⁵ = 18,000×0.88⁵ = $9,499.17

:::::

The value drops below $2,000 in the 17th year.

7 0
3 years ago
GIVING BRAINLIEST QUICK
densk [106]

Answer:

2

Step-by-step explanation: 2+5=7

6 0
3 years ago
Read 2 more answers
Frank wrote 1/4 of his book
Ede4ka [16]
Let’s make common denominator
1/4 * 2/2 = 2/8 before dinner
1/8 after dinner
2/8 + 1/8 = 3/8
He finished 3/8 of the report
7 0
2 years ago
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