samihussain samihussain
  • 02-04-2015
  • Mathematics
contestada

T is directly proportional to M.
If T = 20 when M = 4, find:

a) T when M=3
b) M when T=10

Respuesta :

flyingcaprinekid
flyingcaprinekid flyingcaprinekid
  • 04-04-2015

a) T when M=3

T = 15


 b) M when T=10

M = 2

Answer Link
Hippalectryon
Hippalectryon Hippalectryon
  • 05-04-2015
By proportionality, for any number [tex]a[/tex], if T is multiplied by [tex]a[/tex] then the same goes for M.

a) M has been multiplied by [tex]\dfrac{3}4[/tex] hence [tex]T=20\cdot\dfrac{3}4=5\cdot3=15[/tex]

[tex]\boxed{T=15}[/tex]

b) T has been divided by [tex]2[/tex] hence [tex]M=\dfrac{4}2[/tex]

[tex]\boxed{M=2}[/tex]
Answer Link

Otras preguntas

What's the other word stubborn; inflexible
What's the other word a weak or lifeless feeling
A sound wave of 70 cm travels 840 m in 2.5 sec. What is the velocity and frequency of sound?
Which chemical equation best describes the reaction of potassium metal with fluorine gas to form solid potassium fluoride? A. K(s) + F2(g) → KF2(s) B. K(s) + F(
If 2/5 of a number is added to 1/3 of the same number ,the sum is 22. What is the number?
Which expression is equivalent to 27/125
Solve the quadratic by factoring 2X²-2X-12=0
Jim has gotten scores of 99 and 93 on his first two tests. what score must he get on his third test to keep an average of 90 or greater
What is the highest mountain on each continent?
what is glossities and deficiency