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
Nina [5.8K]
3 years ago
14

The value of y varies directly as x, and y is 10 when x is 5. What is the value of y when x is 4?

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
8 0

Answer:

8.

Step-by-step explanation:

As seen in the pattern y seems to be two times x so 4 x 2 = 8.

Hope that helps

You might be interested in
A line passes through (1, 8) and is perpendicular to the graph of y = 2x+1. What equation
Genrish500 [490]

Answer:

y = -1/2x + 17/2

Explanation:

y = 2x + 1 is in slope intercept form

in the equation y = mx+b, m is the slope, and in the equation m =2

the slope of a perpendicular line is the negative reciprocal of the other slope.

slope of perpendicular= -1/m = -1/2

y = -1/2x + b

now find b by substituting in (1,8) into the partial equation

8 = -1/2 + b

b = 8+ 1/2

b = 17/2

please give thanks :) hope this helps

5 0
3 years ago
Disregarding wind resistance the distance a body falls from rest varies directly as th squares of the time it falls if a skydive
Firdavs [7]

Answer:

The skydiver will fall 1600 ft in 10 seconds.

Step-by-step explanation:

<u>Distance a body falls from rest varies directly as the squares of the time it falls </u>

Let distance = s    

      time = t

Therefore , s = k \times t^{2}

Given, the body falls 64 ft in 2 seconds.

Substituting in above equation,

64 = k \times (2)^{2}

64 = k \times (4)

 k  = \frac{64}{4}

 k = 16 ft/s^{2}

We have to find how much he will fall in 10 seconds.

s = k \times t^{2}

s = 16 \times 10^{2}

s = 16 \times 100

s = 1600 ft

3 0
3 years ago
5x + 10 &gt; 35<br> How do you work this out?
Alexxx [7]

Answer:

x > 5

Step-by -step explanation:

Solving inequalities is similar to solving equations.

5x + 10 > 35

Subtract 10 from both sides.

5x > 25

Divide by 5 from both sides to isolate the x.

x > 5

3 0
2 years ago
Read 2 more answers
Please someone help me
ruslelena [56]

Answer:

r = 0.046212737

Step-by-step explanation:

A = 14,400 (what your investment originally is)

P = 7,200 (what you want your investment to be)

n = 365 (interest is compounded daily)

t = 15 (15 years)

Plug all of these numbers into the equation, then solve for r

14,400 = 7,200(1 + r/365)^365 · 15

Divide 7,200 on both sides --> 2 = (1 + r/365)^365 · 15

365 · 15 = 5475 --> 2 = (1 + r/365)^5475

5475√(2) = 1 + r/365 (root 5475 both sides to cancel out the exponent)

(5475√(2)) - 1 = r/365 (subtract one from both sides)

((5475√(2)) - 1) · 365 = r (multiply both sides by 365 to isolate r)

Type the left side into the calculator to get r --> 0.046212737.

Hope this helps!

8 0
2 years ago
Read 2 more answers
The equation of the line of best fit of a scatter plot y equals negative five x minus two what is the slope of the equation
sattari [20]
Y=-5x-2 
-2= y-intercept
-5x= slope
find y-intercept on a graph, make a dot.
then use slope from y-intercept dot, make another dot.
Draw line.
Is it a positive or Negative slope?
Hope that helps.
5 0
3 years ago
Other questions:
  • I need help with number 3
    10·2 answers
  • Alex sells cars at Keith Palmer Ford. He earns $400a week plus $150per car he sells. If he earned $1450last week, how many cars
    10·2 answers
  • What is the value of x if the quadrilateral is a rhombus? please help
    8·2 answers
  • I need help do you guys know how to help me with this
    9·1 answer
  • Exercise Sheet Number 6
    8·1 answer
  • efore the overtime rule in a football league was​ changed, among 400 overtime​ games, 194 were won by the team that won the coin
    11·1 answer
  • If n = 6, what is the value of 9n−4?
    15·2 answers
  • Zoey walked from school to the grocery store, and then to her house. The diagram shows the top view of the three locations and s
    12·1 answer
  • Consider △XYZ Triangle X Y Z is shown. Angle X Z Y is a right angle. What are the ratios of sine, cosine, and tangent for angle
    6·2 answers
  • Divide.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!