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
Llana [10]
3 years ago
15

If y varies directly as x, and y = 12 when x = 4, what is the value of y when x = 7 ?

Mathematics
2 answers:
Tamiku [17]3 years ago
7 0

Answer:21

(7*12)/4

Step-by-step explanation:

harkovskaia [24]3 years ago
6 0

Answer:

y = 21

Step-by-step explanation:

If y varies directly as x, the fraction between they two is constant, so:

12/4 = y/7

7•12/4 = y

84/4=y

y = 21

You might be interested in
Factor 1/9 out of 1/9x+10/9
DENIUS [597]

Answer:

11/9

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the positive root of the equation x 2 + 5x = 150? a0
Radda [10]
Solution for x^2+5x=150 equation:
<span>Simplifying x2 + 5x = 150 Reorder the terms: 5x + x2 = 150 Solving 5x + x2 = 150 Solving for variable 'x'. Reorder the terms: -150 + 5x + x2 = 150 + -150 Combine like terms: 150 + -150 = 0 -150 + 5x + x2 = 0 Factor a trinomial. (-15 + -1x)(10 + -1x) = 0 Subproblem 1Set the factor '(-15 + -1x)' equal to zero and attempt to solve: Simplifying -15 + -1x = 0 Solving -15 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + -1x = 0 + 15 Combine like terms: -15 + 15 = 0 0 + -1x = 0 + 15 -1x = 0 + 15 Combine like terms: 0 + 15 = 15 -1x = 15 Divide each side by '-1'. x = -15 Simplifying x = -15 Subproblem 2Set the factor '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10Solutionx = {-15, 10}</span>
5 0
3 years ago
X3 + 2xsquared - x - 2 = (x + 6_)(x + 2_)(x + 4_)
Anon25 [30]
3345 because it’s squared
3 0
3 years ago
Pls help!!!
natka813 [3]

Answer:

The area of the base B is equal to 770\ cm^{2}

The volume  is equal to 10,087\ cm^{3}

Step-by-step explanation:

I will proceed to resolve the problem indicated in the attached figure.

The figure shown a inverted rectangular pyramid

The base is a rectangle

The area of the base B is equal to

B=(35)(22)=770\ cm^{2}

To find how many cubic centimeters of titanium are needed to manufacture one tip, calculate the volume of the figure

<em>Find the volume of the inverted rectangular pyramid</em>

The volume of the pyramid is equal to

V=\frac{1}{3}BH

we have

B=770\ cm^{2}

H=39.3\ cm

substitute

V=\frac{1}{3}(770)(39.3)=10,087\ cm^{3}

5 0
3 years ago
100 POINTS FOR ANSWER A ship is docked at an island that is 102.5 km south and 31.4 km east of the ship’s
andrew11 [14]

Answer:133.9

Step-by-step explanation:

102.5

+31.4

————-

133.9 hope this helps

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the area of a circle with a radius of 3 meters using 3.14 for pie
    9·1 answer
  • Where did the Greeks build their theatres?
    15·1 answer
  • Compare and contrast positive and negative slopes
    12·1 answer
  • What is the area of rectangle ABCD with vertices A -3,0 B 3,2 C 4,-1 D -2,-3
    9·1 answer
  • Who think they can figure out this equation for me
    11·1 answer
  • Addmaths probability. I need helpp for question a and b thank youu
    5·1 answer
  • I will give you a brainliest if you answer this question 16
    6·2 answers
  • Which could be the graph of y = -3(x + 1)2 + 2?
    11·1 answer
  • Please help me answer this question
    11·1 answer
  • HELP ME PLEASE!!! I’ll give points
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!