Seudónimo Seudónimo
  • 19-12-2016
  • Mathematics
contestada

A song has 28 beats in 4 seconds . At this rate ,how many beats are there in 30 seconds?

Respuesta :

greenacres greenacres
  • 19-12-2016
you need to make a proportion

beats         28     x
seconds     4       30


cross multiply and divide

(28) (30) = 4x

840 = 4x
210 = x
Answer Link
Аноним Аноним
  • 19-12-2016
This is like math.. 28 divided by 4 = 7.. 7 x 30 = 210 so your answer is 210.

Answer Link

Otras preguntas

7 lb in 12 oz equals blank ounces​
A package of blank CDs usually costs $8.50. This week it's on sale for 15% off. What's the discount? A: $.15 B: $.85 C: $1.28 D: $1.34
x2 + 3x - 108 = 0 What is the answer?
Vincent borrowed $500 from Mitchell for six months. How much interest will Mitchell earn if he charges Vincent a simple interest rate of 3 percent? simple inter
Describe different ways in which a plane might intersect the cylinder and the cross section that results?
The body of a dead animal becomes very stiff in a condition called “Rigor Mortis”. Which of the following is NOT a factor in the development of rigor mortis? Ca
what's is the value of (2/3)^3​
To join the gym there is a $100 annual fee and a $7 monthly fee for each class you attend.What is the total cost to be a member of the gym for 1 year?
If a media message shows favoritism it is considered to be
Use the Geometric Mean Theorem to find the value of J if G=3 and F=12