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
neonofarm [45]
3 years ago
12

Assume that y varies directly with x, then solve.

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

Answer:

-4.4

Step-by-step explanation:

x : y

9.9 : -6.6

6.6 : y

9.9/-6.6 = 6.6/y

y = 6.6 × -6.6/9.9

y = -4.4

andrew-mc [135]3 years ago
3 0

Answer:

y = - 4.4

Step-by-step explanation:

from the question

y = -6.6

x = 9.9

y∝ x

y = kx ..... where k is introduced as a constant of proportionality

solve for k

y=-6.6 and x = 9.9

we have,

-6.6 = k × 9.9

-6.6 = 9.9k

divide both sides by 9.9

-6.6/ 9.9 = 9.9k/9.9

-0.667= k

therefore k = - 0.667

now, find y when x = 6.6

from the equation y = kx

y = -0.667 × 6.6

y = - 4.4

You might be interested in
IM CONFUSED: A used car dealer has the following information for 2 months of sales:
Anuta_ua [19.1K]

Answer:

increase because 324 >>>>> 239

percentage: 324/239 = 135%

8 0
2 years ago
Read 2 more answers
A rectangular piece of metal is 30 in longer than it is wide. Squares with sides 6 in long are cut from the four corners and the
Alexandra [31]

Answer:

length=53 in

width= 23 in

Step-by-step explanation:

First, we know that each corner has now a square of 6 in long, so the heigth of the box will be of this size (as you can see in the picture attached). Then, the length and the width of the box would be the same as the piece, but with 12 in less. Therefore the equations to solve the problem are:

h=6 in\\w=x-12\\l=x+30-12\\l=x+18\\\\V: volume of the box\\V=6*(x-12)*(x+18)\\2706=6x^{2}+36x-1296\\0=6x^{2}+36x-4002\\\\

We factorize the 6 and we get:

0=x^{2}+6x-667\\

Finally we solve for x, and we get the initial dimensions of the piece of metal:

x=23l=30+x=30+23=53 in\\w=x= 23 in

7 0
3 years ago
Find the length of the arch
posledela
Use the formula....central angle/360= arc length/2* pie* R
150/360=x/2*3.14*7.5
150/360=x/47.1
360x=7065
x=7065/360
x=19.625 in
8 0
3 years ago
State if each triangle is a right triangle:<br><br>13 ft<br>5 ft<br>10 ft<br>​
Kaylis [27]

Answer:

Step-by-step explanation:

the longest length is always the hypotenuse

Use Pythagorean theorem

a^2+b^2=c^2

5^2+10^2=c^2

c=11.18

Note: if c=13 than it is a right triangle

since 11.18 not=13

not right triangle

4 0
3 years ago
Read 2 more answers
Caleb has 550 candy bars and eats 2 a day. Robert has 850 candy bars and eats 6
Alex17521 [72]

Answer:

B. 550 - 2x > 850 - 6x

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Which choice is equivalent to the quotient shown here for acceptable values of x?
    10·2 answers
  • In a certain state, license plates consist of three letters followed by three numbers.
    7·1 answer
  • A rectangular park is
    15·1 answer
  • Choose the best definition for the following term: exponent (1 point)
    13·1 answer
  • HELP PLS SIMPLE SIMPLESIMPLE
    7·2 answers
  • If 1 pound is $0.32 then how much does 3.4 pound cost
    11·1 answer
  • I am ask how do you solve this college algebra problem above with steps and example
    11·1 answer
  • What is the missing length?<br> A. 15<br> B. 30<br> C. 8<br> D. 7
    12·1 answer
  • Graph the solution to this inequality on the number line.
    10·1 answer
  • A box of 125 packets of artifical sweetener sells for 3.99
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!