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Elan Coil [88]
3 years ago
13

In the following proportion, what does y equal?

Mathematics
1 answer:
tatyana61 [14]3 years ago
5 0

Answer:

C

Step-by-step explanation:

y / 4 = 39 / 30

y / 4 = 1.3

y / 4 * 4 = 1.3 * 4              (What you do to on side you also do to the other)

y = 5.2

So, your answer should be C, 5.2

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milo is talking to his sister lisa about factors. he said he thinks that any even number always has more factors than any odd nu
UkoKoshka [18]

Answer:

I agree with Lisa

Step-by-step explanation:

* Lets explain the meaning of the factors of a number

- Factors are the numbers you multiply to get another number

- Ex: factors of 12 are 1 , 2 , 3 , 4 , 6 , 12 because

 1 × 12 = 12 , 2 × 6 = 12 , 3 × 4 = 12

- 1 is a factor every number

- The number is a factor of itself

* Lets solve the problem

- Milo said he thinks that any even number always has more

 factors than any odd number

- Lisa said she doesn't agree with him

* Lets take some examples for even and odd number to prove who

 is right

- We will chose numbers between 1 and 22

# Even numbers: 2 , 4 , 14 , 18

# Odd numbers: 3 , 9 , 15 , 21

∵ The factors of 2 are 1 , 2

∴ 2 has 2 factors

∵ The factors of 4 are 1 , 2 , 4

∴ 4 has 3 factors

∵ The factors of 14 are 1 , 2 , 7 , 14

∴ 14 has 4 factors

∵ The factors of 18 are 1 , 2 , 3 , 6 , 9 , 18

∴ 18 has 6 factors

∵ The factors of 3 are 1 and 3

∴ 3 has 2 factors

∵ The factors of 9 are 1 , 3 , 9

∴ 9 has 3 factors

∵ The factors of 15 are 1 , 3 , 5 , 15

∴ 15 has 4 factors

∵ The factors of 21 are 1 , 3 , 7 , 21

∴ 21 has 4 factors

∵ The number of the factors of the even numbers are 2 , 3 , 4 , 6

∵ The number of the factors of the odd numbers are 2 , 3 , 4

∴ The Factors of even numbers and odd numbers are equal

  like 2 and 3 , 4 and 9 , 14 and 15

 <em>OR</em>

  The factors of even number greater than the factors of the odd

  number like 18 the number of the factors of 18 is greater than the

  number of the factors of all odd numbers above

∴ <em>Not always that any even number has more factors than any odd</em>

<em>   number</em>

∴ I agree with Lisa

8 0
4 years ago
Simplify the expression 3x3^ 648x 4 y8
avanturin [10]

Answer: B.)      18x^2y^2 3squareroot 3xy^2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Based on experimental data, the function T(x) = -3(x − 4)3 + 10 models the temperature of a special substance after being placed
zysi [14]
If I assume you meant

-3(x-4)^{2}+10

Then the answer is at 4 minutes. This is just the vertex form of the parabola which is

y=a(x-h)^{2}+k

where (h,k) is the vertex. h = 4 so the vertex is at 4 in the x-axis, or in the context of the problem it means at 4 minutes.
5 0
3 years ago
The point (3 , k) is a distance of 5 units from (0 , 1). Find the two possible values of k.
valkas [14]
D =√(x2-x1)^2 + (y2-y1)^2
......._____________
5 =√(3-0)^2 + (k-1)^2
.......__________
5 =√3^2 + (k-1)^2

25 = 9 + (k-1)^2

16 = k^2 - 2k + 1

k^2 -2k - 15 = 0

(k - 5)(k + 3) = 0

k - 5 = 0.....or.......(k + 3) = 0

k = 5.........or.......k = -3
7 0
3 years ago
X-treme Sports has skateboards at a 24% discount. Find the sale price of a $384 skateboard using percent paid.
Alona [7]

Answer:

the price of a discounted skateboard would be 291.84 or if the board was already discounted, the original price was 476.16

Step-by-step explanation:

5 0
3 years ago
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