1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
hram777 [196]
3 years ago
5

If p and q vary inversely and p is 4 when q is 30, determine q when p is equal to 10.

Mathematics
1 answer:
Sphinxa [80]3 years ago
4 0

answer:

q = 75

step-by-step explanation:

  • we can set up an proportion for this

when p = 4, q = 30

  • put this as a proportion so that this is one side
  • look at what i did

4 / 30 = 10 / x

4x = 300

x = 75

  • here i used x as q, therefore whatever x is, will be q

q = 75

You might be interested in
A baker needs to have 15.5 pounds of flour on hand for the weekend bread so he looks in the cupboard and finds a bag that has 4.
ivann1987 [24]

needs 15.5

4.6 + 6.1 + 4.5 = 15.2

he needs .3 pounds, doesn't have enough currently

4 0
2 years ago
Which ratio is smaller 3/5 or 7/10
Oksanka [162]

3/5=6/10

So 6 being smaller than 7 means 3/5 is smaller than 7/10

5 0
3 years ago
Evaluate for this problem <br> Help!!!
RoseWind [281]

{a}^{2}  - b + 2c
{5}^{2}  - 17 + 2 \times 2
25 - 17 + 4
PEMDAS
25 - 21
4
7 0
3 years ago
A group of people were asked if they had run a red light in the last year. 385 responded "yes", and 472 responded "no".
Dimas [21]

Answer:

44.9%

Step-by-step explanation:

you can find the probability by dividing the total number of people by the number of people who have run a red light:

385/857

simplify into a decimal:

0.449

convert into a percent to get your answer:

44.9%

3 0
3 years ago
25 POINTS AND BRAINLIEST
kondor19780726 [428]

Answer:

4.24 hours

Step-by-step explanation:

Irina can paint 1/9 of a room in 1 hour since she can paint a room in 9 hours. 1/9x, where x is the number of hours she works and 1/9 of a room per hour is her speed, would be her part of the calculation.

Paulo can paint 1/8 of a room in 1 hour since he can paint an entire room in 8 hours. 1/8x, where x is the number of hours he works and 1/8 of a room per hour is his speed, would be his part of the equation.

1/9x + 1/8x = 1 (Irina's portion of the room plus Paulo's portion of the room equals one complete room) would be the equation.

Look for a denominator that has the same value as the numerator. Both 9 and 8 split evenly into 72 as the initial number. We multiply the top of 1/9 by 8 to convert the fraction and get 8/72x because 9*8 = 72. We multiply the top of 1/8 by 9 to convert the fraction and get 9/72x because 8*9 = 72. We have 8/72x+9/72x=1 currently.

17/72x=1

÷ both sides by 17/72:

17/72x ÷ 17/72 = 1÷17/72

∴ x=1/1 * 72/17

∴ x=72/17= 4.24

8 0
2 years ago
Other questions:
  • Solve this system:<br><br> 2x+5y+z=3<br> x-3y+2z=2<br> -x+2y-3z=-7
    5·1 answer
  • All of the following are true about a hypothesis except A. It is more specific than a prediction B. It can never be proven C. It
    9·1 answer
  • C.6<br> 12. Expand &amp; simplify:<br> (x - 5)(x-4)
    12·1 answer
  • The Russian ruble coin has a radius of 10.25 mm. What is the circumference in terms of pi ?
    7·2 answers
  • Camille asked five of her friends how long they studied for the last math test and what grade they received. She found a linear
    13·1 answer
  • B) Write 25 x 10° in standard form.
    12·2 answers
  • Please help guys thank you whoever helps me
    5·1 answer
  • The number of mold spores on a piece of bread after a different amount of time or listed in the table below
    13·1 answer
  • ( 8 2/4 + 2 1/6) - 5 2/12
    7·1 answer
  • Give inverse of each other relations <br><br><br> a. R={(x,y):is a brother or y}​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!