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VashaNatasha [74]
3 years ago
5

HELP ME PLEASE THANK YOU SO MUCHHHHHHHHHH

Mathematics
1 answer:
nikklg [1K]3 years ago
3 0

Answer:

1st and 3rd

Step-by-step explanation:

u welcome :)

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If p is directly proportional to q, and p=9 when q=7.5, find q when p=24.
pishuonlain [190]
<h3>Solution and Explanation:</h3>

If p and q are directly proportional, then they must have a common scalar.

To find q we must first find its scalar. If we let a be the scalar we can form the equation, ap = q.

We are given the information that if q = 7.5 then p = 9. We can use that in finding the scalar.

a \times 9 = 7.5 \\ \frac{a \times 9}{9} = \frac{7.5}{9} \\ a = \frac{75}{90} \\ a = \frac{15}{18}

Now we can solve for q when p = 24 knowing that our scalar is \frac{15}{18}\\.

ap = q \\ \frac{15}{18} \times 24 = q \\ \frac{360}{18} = q \\ 20 = q

<h3>Answer:</h3>

q = 20 when p = 24

4 0
2 years ago
1,265.19 is what percent of 699
Karo-lina-s [1.5K]

Answer:

<h2>1,265.19 is 181% of 699</h2>

Step-by-step explanation:

Calculate the ratio of 1265.19 and 699, then convert it to a percent (multiply by 100%):

\dfrac{1,265.19}{699}=1.81\\\\1.81\cdot100\%=181\%

4 0
3 years ago
What is the absolute value of -4 - 9i ? <br><br>a) -13 <br>b) 5 <br>c) √65<br>d) √97
Nesterboy [21]

|-4-9i|=\sqrt{(-4)^4+(-9)^2}=\sqrt{16+81}=\boxed{\sqrt{97}}

Answer d)

6 0
3 years ago
in class 30 students,13of them are boys what parcentage of the class are girl give your answer to 1 decimal place
gladu [14]

Answer:

56.7%

Step-by-step explanation:

First determine the number of girls

30-13 = 17

The fraction of girls is 17/30

Changing this to a decimal is

.566666666

Changing to a percent

56.666666%

To one decimal place

56.7%

5 0
3 years ago
Select the correct answer.<br> Which of the following represents a function?
Arisa [49]

Answer:

D.

Step-by-step explanation:

A function is when each x-value has only 1 y-value.

A: When x = 5, there are two values for y.

B: When x = -3, there are two values for y.

C: When x = -4, there are two y-values.

D: Each x-value has exactly one y-value.

So, your answer should be D.

Hope this helps!

8 0
3 years ago
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