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
Alex787 [66]
3 years ago
14

Y is directly proportional to x when y=30, x=6

Mathematics
1 answer:
rosijanka [135]3 years ago
4 0

Answer:

a) y = 5x

b) y = 60

Step-by-step explanation:

Since, y is directly proportional to x when y=30, x=6

\therefore \:  y \:  \alpha \:  \: x \\ \therefore \:  y =  kx ...(1) \\ plug \: y = 30 \: and \: x = 6  \: in \: eq \: (1)\\ 30 = k \times 6 \\ k =  \frac{30}{6}  \\ k = 5 \\ plug \: k = 5 \: in \: (1) \\ y = 5x....(2) \: (required \: equation) \\ plug \: x = 12 \: in \: eq \: (2) \\ y = 5 \times 12 \\  \huge \red{ \boxed{y = 60}}

You might be interested in
(A) Write an expression that represents Sarah’s total pay last week. Represent her hourly wage with (w)?
garri49 [273]

Answer:

Step-by-step explanation:

7 0
2 years ago
Write the subtraction expression for the number line shown.
Scorpion4ik [409]

Answer is

0-4-9

start from zero then count

7 0
3 years ago
Read 2 more answers
There were some people on a train. 19 people got off the train at the first stop. 17 people get on the train. Now there is 63 pe
maria [59]

Answer:

65 people.

Step-by-step explanation:

We have to work backwards.

We end with 63 people, and at the stop we lost 19 people and gained 17.

x - 19 + 17 = 63\\; if x = # people at the beginning

x - 19 + 17 = 63\\x - 2 = 63\\x = 65

There were 65 people on the train to begin with.

6 0
3 years ago
Read 2 more answers
HELP ASAP!!!!! PLEASE
german

Answer: imma say A

Step-by-step explanation: sorry if wrong

8 0
2 years ago
Please Please help me with this  problem
Mkey [24]
The work become much simpler if you do it in a table. Hope this helps!!

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the result when the number 20 is decreased by 75%?\
    7·1 answer
  • A car passes a landmark on a highway traveling at a constant rate of 45 kilometers per hour. One hour later, a second car passes
    12·2 answers
  • List three ways o express 3 to the 5 power as a product of powers
    11·1 answer
  • The area of the rectangle and triangle and trapezoid?
    13·1 answer
  • A triangle has one angle that measures 34 degrees, one angle that measures 47 degrees, and one angle that measures 99 degrees.
    15·2 answers
  • Which table corresponds to the equation y = −3x −2?
    15·1 answer
  • Diego had $420 in his checking account. He made 6 deposits of $35.50 each. He also
    11·1 answer
  • Calculate the finance charge and new balance using the previous balance method.
    10·1 answer
  • Y=6/13X is a proportional relationship
    10·1 answer
  • Is △DBE similar to △ABC? If so, which postulate or theorem proves these two triangles are similar?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!